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Effect of forging on the microstructure and texture of a high Nb containing γ-TiAl alloy
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作者 TAO Hui LI Hui-zhong +4 位作者 WANG Li ZHOU Rui CHE Yi-xuan CHEN Yong-hui LIANG Xiao-peng 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第6期1763-1773,共11页
The effect of forging on the microstructure and texture evolution of a high Nb containing Ti-45Al-7Nb-0.3W(at.%)alloy was investigated by X-ray diffractometer(XRD),scanning electron microscopy(SEM),and transmission el... The effect of forging on the microstructure and texture evolution of a high Nb containing Ti-45Al-7Nb-0.3W(at.%)alloy was investigated by X-ray diffractometer(XRD),scanning electron microscopy(SEM),and transmission electron microscopy(TEM).The results show that the as-cast alloy is mainly composed of α_(2)/γ lamellar colonies with a mean size of 70μm,but the hot-forged pancake displays a near duplex microstructure(DP).Kinking and bending of lamellar colonies,deformation twinning and dynamic recrystallization(DRX)occur during hot forging.Meanwhile,dense dislocations in theβphase after forging suggest that the high-temperature β phase with a disordered structure is favorable for improving the hot-workability of the alloy.Unlike the common TiAl casting texture,the solidification process of the investigated as-cast alloy with high Nb content is completely via the β phase region,resulting in the formation of a<110>γ fiber texture where the<110>γ aligns parallel to the heat-flow direction.In comparison,the relatively strong<001>and weak<302>texture components in the as-forged alloy are attributed to the deformation twinning.After annealing,static recrystallization occurs at the twin boundary and intersections,which weakens the deformation texture. 展开更多
关键词 high Nb containingγ-TiAl alloy forging microstructure TEXTURE βphase
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Effect of nitrogen content on the microstructure and mechanical properties of titanium-bearing nonquenched and tempered steel after hot forging
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作者 YU Dajiang GAO Jiaqiang ZHAO Sixin 《Baosteel Technical Research》 CAS 2023年第2期1-6,共6页
The microstructure and mechanical properties of titanium(Ti)-bearing medium-carbon nonquenched and tempered steel with different nitrogen content before and after hot forging were investigated through smelting,forging... The microstructure and mechanical properties of titanium(Ti)-bearing medium-carbon nonquenched and tempered steel with different nitrogen content before and after hot forging were investigated through smelting,forging,and laboratory tests.The results show that the grain size of nonquenched and tempered steel was gradually refined,and the ferrite content gradually increased with an increase in nitrogen content.The grain size of the material with low nitrogen content increased abnormally,and its impact properties significantly decreased after hot forging.The grain size of nonquenched and tempered steel with higher nitrogen content was slightly larger than that before forging,and the tensile and yield strength increased,but the impact toughness was not significantly reduced.The Ti-bearing nonquenched and tempered steel showed better strength and toughness after hot forging with the addition of 0.010%0.015%nitrogen. 展开更多
关键词 nonquenched and tempered steel nitrogen content TITANIUM forging mechanical properties MICROSTRUCTURE
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Microstructure and mechanical properties of TC21 titanium alloy by near-isothermal forging 被引量:14
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作者 石志峰 郭鸿镇 +2 位作者 刘瑞 王晓晨 姚泽坤 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第1期72-79,共8页
Microstructure and tensile properties of TC21 titanium alloy after near-isothermal forging with different parameters plus solution treatment and aging were investigated. It is found that the residual β matrix, which ... Microstructure and tensile properties of TC21 titanium alloy after near-isothermal forging with different parameters plus solution treatment and aging were investigated. It is found that the residual β matrix, which was strengthened by fine secondary α platelets forming during aging, exists in all the samples; while primary equiaxed α phase, bent lamellar α phase and α plates are simultaneously or individually present in one sample. The strength of alloy increases proportionally with increasing the content of residual β matrix, which is the result of increasing α/β interphase boundary. The plasticity of alloy has a downward trend as the content of residual β matrix increases. This attributes to the increase of fine secondary α platelets, which are cut by dislocations during the deformation. Additionally, coarse α plates with long axis parallel to the maximum resolved shear stress(MRSS) also reduce the plasticity of TC21 alloy. 展开更多
关键词 TC21 titanium alloy near-isothermal forging MICROSTRUCTURE α phase morphology residual β matrix tensile properties
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Homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging 被引量:11
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作者 杜之明 陈刚 +5 位作者 韩飞 曹广祥 柳君 李宏伟 张新 谢水生 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第11期2384-2390,共7页
The homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging was investigated.Wheel hubs were produced using direct and compound loading.The results show that the mi... The homogenization on microstructure and mechanical properties of 2A50 aluminum alloy prepared by liquid forging was investigated.Wheel hubs were produced using direct and compound loading.The results show that the microstructure and mechanical properties are inhomogeneous in direct forged samples.The microstructure of the wall is coarser than that of the base,and the mechanical properties are lower and some defects are detected at the wheel corner.Using compound loading,the microstructure and mechanical properties of the wall are improved evidently.With increasing feeding amount,the microstructure and mechanical properties become more homogeneous.The defects disappear when the feeding amount is 4 mm.The forged wheel hubs could obtain fine and homogeneous microstructure with grain size of 20-30 μm,tensile strength of 355 MPa and elongation of 10% when the feeding amount is 10 mm.The microstructure and mechanical properties of liquid forged workpieces could be controlled and homogenized using compound loading. 展开更多
关键词 HOMOGENIZATION aluminum alloy liquid forging compound loading
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Structure uniformity and limits of grain refinement of high purity aluminum during multi-directional forging process at room temperature 被引量:6
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作者 朱庆丰 李磊 +3 位作者 班春燕 赵志浩 左玉波 崔建忠 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第5期1301-1306,共6页
The effect of forging passes on the refinement of high purity aluminum during multi-forging was investigated. The attention was focused on the structure uniformity due to deformation uniformity and the grain refinemen... The effect of forging passes on the refinement of high purity aluminum during multi-forging was investigated. The attention was focused on the structure uniformity due to deformation uniformity and the grain refinement limitation with very high strains. The results show that the fine grain zone in the center of sample expands gradually with the increase of forging passes. When the forging passes reach 6, an X-shape fine grain zone is initially formed. With a further increase of the passes, this X-shape zone tends to spread the whole sample. Limitation in the structural refinement is observed with increasing strains during multi-forging process at the room temperature. The grains size in the center is refined to a certain size (110 μm as forging passes reach 12, and there is no further grain refinement in the center with increasing the forging passes to 24. However, the size of the coarse grains near the surface is continuously decreased with increasing the forging passes to 24. 展开更多
关键词 multi-directional forging high purity aluminum structure uniformity grain refinement
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Microstructure and mechanical properties of isothermal multi-axial forging formed AZ61 Mg alloy 被引量:6
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作者 夏祥生 陈明 +5 位作者 卢永进 樊富友 朱春华 黄静 邓天泉 朱世凤 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第11期3186-3192,共7页
Microstructure and mechanical properties of AZ61 Mg alloy during isothermal multi-axial forging (MAF) were studied. The mechanisms of grain refinement and relationship between the microstructures and mechanical prop... Microstructure and mechanical properties of AZ61 Mg alloy during isothermal multi-axial forging (MAF) were studied. The mechanisms of grain refinement and relationship between the microstructures and mechanical properties were discussed. The results show that the average grain size decreases with increasing the number of MAF passes. The grains are significantly refined at the 1st and 2nd MAF passes, and gradually refined at higher MAF passes. The initial grain size of 148 lam decreases to about 14 gm after 6 MAF passes. The grain refinement occurs mainly by continuous dynamic recrystallization. With increasing the MAF passes, both the tensile strength and the elongation to failure of the alloy are significantly enhanced. 展开更多
关键词 Mg alloy multi-axial forging microstructure mechanical properties
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Influence of forging process on microstructure and mechanical properties of large section Ti-6.5Al-1Mo-1V-2Zr alloy bars 被引量:3
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作者 黄德明 王怀柳 +2 位作者 陈鑫 陈永 郭华 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第8期2276-2282,共7页
The mechanical properties, microstructure and tensile fracture of Ti-6.5AI-IMo-IV-2Zr large section bars produced by three diffrent forging processes were investigated. The results show that when billet forging and fi... The mechanical properties, microstructure and tensile fracture of Ti-6.5AI-IMo-IV-2Zr large section bars produced by three diffrent forging processes were investigated. The results show that when billet forging and finish forging were conducted by means of fullering at high and low temperature of r-region, respectively; the microstructure of forged bar is coarse Widmanstaten structure; the mechanical properties, especially the reduction of cross-sectional area, are poor, and the room temperature tensile fracture presents a brittle feature. While billet forging was carried out by upset-fullering at high temperature of the r-region, and finish forging was proceeded through fullering at (a+fl)-region, the microstructure of forged bar was a duplex structure, the bar has better comprehensive mechanical properties, and the room temperature tensile fracture reveals a ductile feature. In order to obtain qualified Ti-6.SAI-IMo-IV-2Zr alloy bar, it is the key that as-cast microstructure should be completely broken during billet forging, and the forging temperature and deformation are also well controlled upon finishing forging. 展开更多
关键词 Ti-6.SAI-IMo-IV-2Zr bar forging microstructure mechanical properties
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Numerical simulation and physical analysis for dynamic behaviors of P/M TiAl alloy in hot-packed forging process 被引量:2
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作者 张伟 刘咏 +1 位作者 王丽 刘彬 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第4期901-906,共6页
The hot forging of large-scale P/M TiAl alloy billet deformation was investigated based on a joint application of Deform-3D-based numerical simulation and physical simulation techniques.The temperature dependence on t... The hot forging of large-scale P/M TiAl alloy billet deformation was investigated based on a joint application of Deform-3D-based numerical simulation and physical simulation techniques.The temperature dependence on the thermal and mechanical properties of the billet was considered and the optimum hot working temperature of packed TiAl alloy was 1150-1200 °C.Based on the simulation,the material flow and thermo mechanical field variables,such as stress,strain,and temperature distribution were obtained and the relationships of load—displacement and load—time were figured out.To verify the validity of the simulation results,the experiments were also carried out in a forging plant,and a pancake with diameter of 150 mm was obtained exhibiting a regular shape. 展开更多
关键词 TIAL hot packed forging numerical simulation physical simulation
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Comparison of microstructures and mechanical properties between forging and rolling processes for commercially pure titanium 被引量:5
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作者 徐春 朱文峰 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第8期1939-1946,共8页
In order to reveal the differences caused by forging and rolling process for titanium ingots, hot compression behavior, mechanical properties and the microstructures of forged billets and rolled ones were investigated... In order to reveal the differences caused by forging and rolling process for titanium ingots, hot compression behavior, mechanical properties and the microstructures of forged billets and rolled ones were investigated in detail using Gleeble-1500 thermal mechanical simulator, universal testing machine and optical microscope (OM). The compression deformation experimental data of commercially pure titanium (CP-Ti) were mapped to be a T vs lg diagram in which data fall into three distinct regions, i.e., three-stage work hardening, two-stage work hardening and flow softening, which can be separated by border lines at 17.5 and 15.4 for lg Z, where Z represents the Zener-Hollomon parameter. The deformation twin is found to have higher Z-value corresponding to the work hardening region. The differences in microstructures and mechanical properties for two kinds of billets indicate that forged billet consists of deformation twins and some twin intersections, and many twins cross the grain boundaries. However, nearly no twins can be seen in the microstructure of billet formed by rolling under optical microscope (OM), but there are equiaxed and platelike grains. Tensile tests and Vickers hardness test indicate that yield strength, tensile strength and microhardness of the samples after forging are higher than those after rolling. 展开更多
关键词 commercially pure titanium(CP-Ti) forging process rolling process MICROSTRUCTURES mechanical properties
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Tensile properties and microstructure of Ti14 alloy after semi-solid forging 被引量:1
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作者 陈永楠 魏建锋 +1 位作者 赵永庆 张学敏 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第12期2610-2616,共7页
Tensile properties of a new α+Ti2Cu alloy after solid forging at 950 °C and semi-solid forging at 1 000 °C and 1 050 °C were investigated over the temperature range of 20-600 °C. The results reve... Tensile properties of a new α+Ti2Cu alloy after solid forging at 950 °C and semi-solid forging at 1 000 °C and 1 050 °C were investigated over the temperature range of 20-600 °C. The results reveal that high strength and low ductility are obtained in all semi-solid forged alloys. Tensile properties decrease as the semi-solid forging temperature increases, and cleavage fractures are observed after semi-solid forging at 1 050 °C. The variations in tensile properties are attributed to the coarse microstructures obtained in the semi-solid alloys. It is found that the elevated semi-solid temperatures lead to more liquid precipitates along the prior grain boundaries, which increases the peritectic precipitation and formation of Ti2Cu precipitation zones during re-solidification. Recrystallization heat treatment leads to fine microstructure of semi-solid forged alloys, resulting in improvement of tensile properties. 展开更多
关键词 Ti14 alloy semi-solid forging MICROSTRUCTURE tensile properties heat treatment
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RIGID-PLASTIC MECHANICAL MODEL FOR THE FORGING METHOD WITH HORIZONTAL V-SHAPED ANVIL 被引量:6
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作者 LIU Zhubai NI Liyong +2 位作者 LIU Guohui ZHANG Yongjun ZHU Wenbo 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2006年第2期272-275,共4页
In order to decrease the anisotropy of mechanical properties, the rigid-plastic mechanical model for the forging method with horizontal V-shaped anvil is presented. The forging method, through the change of anvils sha... In order to decrease the anisotropy of mechanical properties, the rigid-plastic mechanical model for the forging method with horizontal V-shaped anvil is presented. The forging method, through the change of anvils shape, is able to control fibrous tissue direction, to improve the anisotropy of mechanical properties of axial forgings, to realize uniform forging. Therefore, the forging method can overcome the defect that conventional forging methods produce. The mechanism of the forging method with horizontal V-shaped anvil and the process of metal deformation are analyzed. The agreement of theoretical analysis with experimental study verifies the fact that the forging method with horizontal V-shaped anvil can control effectively the mechanical properties of axial forgings. 展开更多
关键词 forging HORIZONTAL V-shaped anvil Axial forging ANISOTROPY Tissue flow direction
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Analysis of isothermal forging process and mechanical properties of complex aluminum forging for aviation 被引量:2
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作者 胡建良 易幼平 黄始全 《Journal of Central South University》 SCIE EI CAS 2014年第7期2612-2616,共5页
Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were studied.The tensile strength after forging is up to 587.5 MPa in longitudinal direction,15... Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were studied.The tensile strength after forging is up to 587.5 MPa in longitudinal direction,15% higher than that using free forging.Moreover,the tensile strength of the forging is almost the same in three directions.Isothermal forging also performs well on overall fracture toughness,with a maximum value of 39.8 MPa·m1/2,and that of short transverse direction all reaches 36 MPa·m1/2 and above,with a maximum relative error of only 3.6%.The results indicate that the isothermal forging leads to better performance as well as higher uniformity in mechanical properties. 展开更多
关键词 aviation forging isothermal forging process UNIFORMITY fracture toughness
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基于Simufact Forging高铁轮毂锻压成形工艺仿真
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作者 王仕勋 《热加工工艺》 CSCD 北大核心 2018年第23期153-156,共4页
基于Simufact Forging有限元分析软件对高铁轮毂成形过程进行了仿真,着重研究了轮毂辗扩过程中的等效塑性应变、等效应力及材料流动。结果表明:高铁轮毂在辗扩过程中材料整体变形基本一致,可以获得较好的力学性能;随着锻压成形不断的进... 基于Simufact Forging有限元分析软件对高铁轮毂成形过程进行了仿真,着重研究了轮毂辗扩过程中的等效塑性应变、等效应力及材料流动。结果表明:高铁轮毂在辗扩过程中材料整体变形基本一致,可以获得较好的力学性能;随着锻压成形不断的进行,轮毂内圈塑性应变逐渐变大;成形过程中整个轮毂应力分布较为均匀。 展开更多
关键词 Simufact forging软件 高铁轮毂 锻压成形 仿真
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Review : State-of-the-Art of Stamping-Forging Process with Sheet Metal Blank
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作者 Xinyun Wang Junsong Jin Lei Deng 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2017年第3期1-16,共16页
The aim of this paper is to review the state-of-the-art SFPs and their applications,and to provide a guide for researchers and engineers working in this field.Various SFPs are classified according to the combination w... The aim of this paper is to review the state-of-the-art SFPs and their applications,and to provide a guide for researchers and engineers working in this field.Various SFPs are classified according to the combination ways of stamping and forging operations.The process principle of each combination is reviewed,with its applications discussed.The state-of-the-art of SFPs suggests that future work in this field should focus on the development of high-strength die materials,better lubrication control methods,forming machines with intelligent control capacity and special functions,and some new SFPs for high strength or ultra-high strength materials. 展开更多
关键词 sheet metal STAMPING forging stamping-forging process
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Microstructure and mechanical properties of Mg-Si alloys processed by cyclic closed-die forging 被引量:2
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作者 J.METAYER 叶兵 +3 位作者 郭炜 王渠东 周浩 F.MOLLET 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第1期66-75,共10页
Mg-xSi (x=0, 1.5, 3.3) alloys were fabricated and subjected to cyclic closed-die forging (CCDF), a new severe plastic deformation process, at 450 ℃ for 1, 3, and 5 passes. With applying CCDF, tensile strength, el... Mg-xSi (x=0, 1.5, 3.3) alloys were fabricated and subjected to cyclic closed-die forging (CCDF), a new severe plastic deformation process, at 450 ℃ for 1, 3, and 5 passes. With applying CCDF, tensile strength, elongation and hardness increase, while coarse Mg2Si particles break into smaller pieces and exhibit more uniform distribution. Mg-1.5%Si alloy exhibits a combination of improved strength and elongation after 5 passes of CCDF processing. The tensile strength is about 142 MPa and elongation is about 8%. The improvement in mechanical properties was further characterized by dry sliding wear testing. The results show that wear resistance improves with silicon content and CCDF process passes, particularly the first pass. The wear resistance increases by about 38% for Mg-3.3%Si after 5 passes of CCDF compared with pure Mg. The improvement of wear is related to microstructure refinement and homogenization based on the Archard equation and friction effect. 展开更多
关键词 MG2SI magnesium alloy MG2SI cyclic closed-die forging WEAR MICROSTRUCTURE
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Effects of Nd and rotary forging on mechanical properties of AZ71 Mg alloys 被引量:3
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作者 陈贞光 陈宇辰 +2 位作者 李宪宗 陈锦修 张浚荣 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第10期3223-3231,共9页
The effects of Nd addition on the mechanical properties and plastic deformability of AZ71 Mg alloys were investigated.0.5%-2.0%(mass fraction) Nd was added to AZ71 Mg alloys.The grain size and the amount of brittle ... The effects of Nd addition on the mechanical properties and plastic deformability of AZ71 Mg alloys were investigated.0.5%-2.0%(mass fraction) Nd was added to AZ71 Mg alloys.The grain size and the amount of brittle β-Mg17Al12 phase reduce with increasing the Nd addition,while nanosized AlxNdy precipitates form.In combination with 32% rotary forging and subsequent annealing,the grain size of Nd-added AZ71 Mg alloys reduces greatly from over 350 μm to below 30 μm.Both tensile strength and ductility increase with the Nd addition up to 1.0%.The addition of Nd beyond 1.0% leads to the aggregations of rod-shaped Al11Nd3 and blocky Al2 Nd precipitates,thereby deteriorating both strength and ductility.The 1.0% Nd-added AZ71 Mg alloy shows tensile strength up to 253 MPa and elongation of 10.7%.It is concluded that adding 1.0% Nd to AZ71 Mg alloy yields the optimum toughness,whether under as-cast or rotary forging and annealing conditions. 展开更多
关键词 AZ71Mg alloys ND rotary forging mechanical properties RECRYSTALLIZATION
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3D FEM simulation of flow velocity field for 5052 aluminum alloy multi-row sprocket in cold semi-precision forging process 被引量:1
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作者 程旺军 池成忠 +3 位作者 王永祯 林鹏 赵日红 梁伟 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第3期926-935,共10页
Based on the design of the multi-row sprocket with a new tooth profile,a cold semi-precision forging process for manufacturing 5052 aluminum alloy multi-row sprocket was presented.Through simulating the forging proces... Based on the design of the multi-row sprocket with a new tooth profile,a cold semi-precision forging process for manufacturing 5052 aluminum alloy multi-row sprocket was presented.Through simulating the forging process of 5052 aluminum alloy sprocket billet with 3D rigid-viscoplastic FEM,both the distributions of flow velocity field in axial(U_Z),radial(U_R) and circumferential(U_θ) directions and the curves of velocity component in different deformation regions were respectively obtained.By comparison and analysis of the velocity varying curves,the velocity component relation conditions for filling the die cavity were clarified.It shows that when the die cavity is almost fully filled,the circumferential velocity U_θ increases sharply,implying that U_θplays a key role in fully filling the die cavity. 展开更多
关键词 multi-row sprocket cold semi-precision forging 5052 aluminum alloy flow velocity field 3D FEM
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Effect of Forging Ratio on Microstructure of the of the 1.5710 Grade Steel
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作者 Greger Miroslav Michal Madaj +1 位作者 Petrzela Jiri Laszlo Vladimir 《Journal of Mechanics Engineering and Automation》 2015年第8期454-458,共5页
Intensity of structural changes during forging is usually determined in dependence on the forging ratio. Forging ratio at elongation is most often calculated with use of simple relations, which are based on the change... Intensity of structural changes during forging is usually determined in dependence on the forging ratio. Forging ratio at elongation is most often calculated with use of simple relations, which are based on the change of cross section of the forged pieces. The intensity of structure development is influenced not only by the simple change of cross sections, but also by relative length of the stroke, magnitude of deformation in individual passes, manner of edging, temperature, friction and shape of anvils. The paper gives an analysis of influence of the relative length of the stroke on the forging ratio. 展开更多
关键词 forging relative length of the stroke forging ratio.
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Minimization of Stock Weight during Close-Die Forging of a Spindle
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作者 Hamzah Ssemakula 《Materials Sciences and Applications》 2013年第4期217-224,共8页
In this paper, Finite Element method and full-scale experiments have been used to study a hot forging method for fabrication of a spindle using reduced initial stock size. The forging sequence is carried out in two st... In this paper, Finite Element method and full-scale experiments have been used to study a hot forging method for fabrication of a spindle using reduced initial stock size. The forging sequence is carried out in two stages. In the first stage, the hot rolled cylindrical billet is pre-formed and pierced in a closed die using a spherical nosed punch to within 20 mm of its base. This process of piercing or impact extrusion leads to high strains within the work piece but requires high press loads. In the second stage, the resulting cylinder is placed in a die with a flange chamber and upset forged to form a flange. The stock mass is optimized for complete die filling. Process parameters such as effective strain distribution, material flow and forging load in different stages of the process are analyzed. It is concluded from the simulations that minor modifications of piercing punch geometry to reduce contact between the punch and emerging vertical walls of the cylinder appreciably reduces the piercing load. In the flange chamber, a die surfaces angle of 52° instead of 45° is proposed to ensure effective material flow and exert sufficient tool pressure to achieve complete cavity filling. In order to achieve better compression, it is also proposed to shorten both the length of the inserted punch and the die “tongues” by a few mm. 展开更多
关键词 Close-Die forging forging Load Material Flow Effective Strain Distribution
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MICROSTRUCTURAL MODEL OF GATORIZED WASPALOY IN THE ISOTHERMAL FORGING PROCESS 被引量:61
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作者 J.P. Hu (Chongqing Iron and Steel Designing Research Institute, Chongqing 400013, China) J. Y. Zhuang, J.H. Du, Q. Deng, D. Feng and Z. Y. Zhong (Central Iron and Steel Research Institute, Beijing 100081, China) P. Janschek and J. Kramer (Thyssen Umformte 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2001年第3期205-211,共7页
A microstructural model, which was used to predict the evolution of microstructure of Gatorized Waspaloy in the isothermal forging process, was developed in terms of dynamic recrystallization and grain growth. The fol... A microstructural model, which was used to predict the evolution of microstructure of Gatorized Waspaloy in the isothermal forging process, was developed in terms of dynamic recrystallization and grain growth. The following three steps of experiment were conducted during developing the model. (1) Specimens were compressed in the MTS testing machine. (2) Dynamic recrystallization and grain growth were discussed. (3) Dynamic recrystallization model and grain growth model were set up. The simulated results are in good agreement with the experimental data. 展开更多
关键词 forging Grain growth Microstructure MODELS Nickel alloys
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