期刊文献+
共找到103篇文章
< 1 2 6 >
每页显示 20 50 100
试论金长生礼学思想的特点
1
作者 金顺今 全锦子 《延边大学学报(社会科学版)》 2005年第2期28-30,共3页
为了维护社会秩序、重建社会伦理纲常,金长生毕生致力于礼的完善。金长生的礼学以人性论为依据,重视人自身的修养;其礼学以《朱子家礼》为中心,尤其重视丧礼和祭礼;他认为礼的功能就是维护正统秩序。
关键词 金长生 礼学 特点
下载PDF
金长生礼学思想的特点及其意义
2
作者 金顺今 全锦子 《延边党校学报》 2005年第2期15-17,共3页
“礼”是儒家思想中具有非常重要地位的一个范畴。儒家的社会理想,主要是通过“礼”这个环节落实到实际的社会生活并发挥作用。金长生试图以礼学思想来重建社会秩序和人伦关系。为了维护社会秩序、重建社会伦理纲常,他把毕生的精力都致... “礼”是儒家思想中具有非常重要地位的一个范畴。儒家的社会理想,主要是通过“礼”这个环节落实到实际的社会生活并发挥作用。金长生试图以礼学思想来重建社会秩序和人伦关系。为了维护社会秩序、重建社会伦理纲常,他把毕生的精力都致力于《朱子家礼》的完善和制定适合本国人情、时宜的礼学。他的礼学是在朝鲜本土上,首先达到较高学术水准的、系统的礼学思想。通过对金长生礼学的研究,或许可以为我们建立一个更加和谐美满的社会提供一些有益的启发。 展开更多
关键词 金长生 礼学 特点 意义
原文传递
韩国儒者对中国朱子学的几点发展 被引量:1
3
作者 李甦平 《韩国研究论丛》 2007年第4期450-463,共14页
古往今来,儒学之所以具有旺盛的生命力,长盛不衰、永葆青春,就是由于儒学自身的更新和变异,即发展。中国儒学传到韩国之后,在与韩国本土文化的磨合过程中,发生了许多变化,形成了韩国儒学。没有这种变化,就没有韩国儒学。
关键词 朱子学 四端 理一分殊 理先气后 本然之性 李退溪 理气观 磨合过程 金长生 李柬
下载PDF
宋浚吉理气说浅析
4
作者 洪军 《韩国研究论丛》 2007年第4期464-476,共13页
宋浚吉(1606—1672,字明甫,号同春堂)是17世纪韩国著名理学家和政治家,同时亦是朝鲜朝后期韩国性理学的主要代表人物之一。作为栗谷先生的再传弟子,在韩国儒学史上他与同属畿湖学派宋时烈(1607—1689,字英甫,号尤庵)并称为"两宋&qu... 宋浚吉(1606—1672,字明甫,号同春堂)是17世纪韩国著名理学家和政治家,同时亦是朝鲜朝后期韩国性理学的主要代表人物之一。作为栗谷先生的再传弟子,在韩国儒学史上他与同属畿湖学派宋时烈(1607—1689,字英甫,号尤庵)并称为"两宋"先生,具有重要的历史地位和影响。 展开更多
关键词 性理学 湖学 朱子学 宋时烈 再传弟子 理气观 学史 浑融 气论 金长生
下载PDF
书谒古堂先生(己亥三月)
5
作者 张京华 《湖南科技学院学报》 2020年第4期32-32,共1页
予闻道无所不在。在天下,在四海;在中州,在南服;在训蒙斋,在白鹿洞。予又闻道因人而传。始则姚姒子姬传之,继则孔曾思孟传之,晚则周程张朱传之,朱子之后则有疑焉。前者予得印本《华岛渊源录》一册,与陈微博士共参,见书内有道统渊源图,... 予闻道无所不在。在天下,在四海;在中州,在南服;在训蒙斋,在白鹿洞。予又闻道因人而传。始则姚姒子姬传之,继则孔曾思孟传之,晚则周程张朱传之,朱子之后则有疑焉。前者予得印本《华岛渊源录》一册,与陈微博士共参,见书内有道统渊源图,首中国伏羲尧舜禹汤文武周公孔子颜子曾子子思孟子周子伯程子叔程子张子朱子,次东国静庵赵光祖、退溪李滉、栗谷李珥、沙溪金长生、尤庵宋时烈、农岩金昌协、渼湖金元行、近斋朴胤源、梅山洪直弼、全斋任宪晦,最后至艮斋田愚先生而止。 展开更多
关键词 宋时烈 金长生 子思 李滉 思孟 朱子 颜子 尧舜禹汤
下载PDF
Modeling of equiaxed and columnar dendritic growth of magnesium alloy 被引量:6
6
作者 吴孟武 熊守美 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第9期2212-2219,共8页
Based on the cellular automaton (CA) method, a numerical model was developed to simulate the dendritic growth of magnesium alloy with HCP crystal structure. The growth kinetics was calculated from the complete solut... Based on the cellular automaton (CA) method, a numerical model was developed to simulate the dendritic growth of magnesium alloy with HCP crystal structure. The growth kinetics was calculated from the complete solution of the transport equations. By defining a special neighborhood configuration with the square CA cell, and using a set of capturing rules which were proposed by BELTRAN-SANCHEZ and STEFANESCU for the dendritic growth of cubic crystal metals during solidification, modeling of dendritic growth of magnesium alloy with different growth orientations was achieved. Simulation of equiaxed dendritic growth and columnar dendritic growth under directional solidification was carried out, and validation was performed by comparing the simulated results with the experimental results and those in the previously published works. 展开更多
关键词 magnesium alloy dendritic growth cellular automaton method growth orientation
下载PDF
Effects of cubic carbides and La additions on WC grain morphology,hardness and toughness of WC-Co alloys 被引量:9
7
作者 张立 陈述 +3 位作者 程鑫 吴厚平 马鋆 熊湘君 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第7期1680-1685,共6页
Effects of Cr3C2,VC and La2O3 additions on the WC grain morphology,hardness and toughness of WC-10Co alloys were investigated.To intensify the grain growth driving force,nano W and nano C,instead of the conventionally... Effects of Cr3C2,VC and La2O3 additions on the WC grain morphology,hardness and toughness of WC-10Co alloys were investigated.To intensify the grain growth driving force,nano W and nano C,instead of the conventionally used WC,were used as the starting materials.To obtain a three-dimensional WC grain morphology,the natural sinter skins of the alloys were observed directly by scanning electron microscopy.It is shown that the additions have a strong ability in regulating the WC grain morphological and grain size distribution characteristics and the combinations of hardness and toughness.Due to the formation of regular and homogeneous triangular platelet WC grains,WC-10Co-0.6Cr3C2-0.06La2O3 alloy shows an excellent combination of hardness and toughness.The morphological regulation mechanism,the relationship between the WC grain morphology and the properties were discussed. 展开更多
关键词 cemented carbide rare earth grain growth platelet WC grain hardness TOUGHNESS
下载PDF
Effects of Tiller-inhibitor on Growth and Yield Formation of Super Early Hybrid Rice Jinyou458 被引量:3
8
作者 钱银飞 邱才飞 +5 位作者 邵彩虹 陈先茂 谢江 邓国强 彭春瑞 任天志 《Agricultural Science & Technology》 CAS 2011年第10期1444-1448,共5页
[Objective]The paper was to study the effect of tiller-inhibitor on the growth and yield formation of super early rice Jinyou 458.[Method] Two treatments including spraying tiller-inhibitor(TI) and spraying water(C... [Objective]The paper was to study the effect of tiller-inhibitor on the growth and yield formation of super early rice Jinyou 458.[Method] Two treatments including spraying tiller-inhibitor(TI) and spraying water(CK) at the SN-n stage were set in the test,the effect of tiller-inhibitor on yield and its components,leaf and plant morphology,field microclimate at booting stage and quality characteristics of rice population were studied.[Result] Spraying tiller-inhibitor could effectively reduce the occurrence of invalid and inefficient tillers,increase the proportion of high effective tillers(tiller with 4 or more leaves) in tiller composition at the maximal tiller stage.The panicle length,spikelets per panicle,spikelets density,number of secondary branches and the secondary spikelets,seed setting rate of rice plant sprayed with tiller-inhibitor were significantly higher than CK.Meanwhile,spraying tiller-inhibitor could increase plant height,biomass weight and leaf area index of rice population during middle and late stages of rice growing,improve the leaf temperature of top three leaves and the light transmittance of rice population at the booting stage,increase the leaf SPAD value,thus enhance photosynthetic capacity of rice plants.It also showed the characteristics of elongating the internode of rice plant and decreasing the stem thickness,etc.[Conclusion] The panicle-bearing rate of stems and tillers,effective panicles,spikelets per panicle,seed setting rate and 1 000-grain weight had coordinately increased after spraying tiller-inhibitor,thus increased the yield. 展开更多
关键词 Tiller-inhibitor Super early hybrid rice Jinyou 458 GROWTH YIELD
下载PDF
Effects of neodymium addition on microstructure and mechanical properties of near-eutectic Al-12Si alloys 被引量:4
9
作者 胡志 阮先明 闫洪 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第12期3877-3885,共9页
The microstructure and mechanical properties of near-eutectic Al-12 Si alloys modified with 0-0.4% Nd(mass fraction) were investigated. The results indicate that a submicro- or nano-sized Al2 Nd phase is observed in... The microstructure and mechanical properties of near-eutectic Al-12 Si alloys modified with 0-0.4% Nd(mass fraction) were investigated. The results indicate that a submicro- or nano-sized Al2 Nd phase is observed in the modified alloy with 0.3% Nd. The morphology of the α(Al) phase is significantly refined in the Nd-modified alloys. The primary Si morphology simultaneously changes into a fine, particle-like morphology, and the morphology of eutectic Si becomes fine-fibrous instead of coarse-acicular. Relatively few growth twins are observed on the surface of the Si plate in the Al-12Si-0.3Nd alloy at the optimal modification level. The mechanical property test results confirm that the mechanical properties of the as-cast Al-12 Si alloys are enhanced after the Nd addition, with optimal ultimate tensile strength(UTS) of 252 MPa and elongation(EL) of 13% at an Nd content of 0.3%. The improved mechanical properties are attributed to the refined morphology of Si phase and the formation of the Al2 Nd phase. 展开更多
关键词 Al-12Si alloy NEODYMIUM REFINEMENT growth twins mechanical properties
下载PDF
Growth mechanism of primary silicon in cast hypoeutectic Al-Si alloys 被引量:10
10
作者 王守仁 马茹 +2 位作者 王英姿 王勇 杨丽颖 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第6期1264-1269,共6页
The microstructural features of hypoeutectic AI-10%Si alloy were observed using optical microscopy and electron backscatter diffraction. The results show that primary silicon particles are frequently found in hypoeute... The microstructural features of hypoeutectic AI-10%Si alloy were observed using optical microscopy and electron backscatter diffraction. The results show that primary silicon particles are frequently found in hypoeutectic alloys. Hence, the nucleation and growth mechanisms of the precipitation of primary silicon of hypoeutectic Al-10%Si alloy melts were investigated. It was discovered that Si atoms are easy to segregate and form Si-Si clusters, which results in the formation of primary silicon even in eutectic or hypoeutectic Al-Si alloys. In addition, solute redistribution caused by chemical driving force and large pile-ups or micro-segregation of the solute play an important role in the formation of the primary silicon, and the solute redistribution equations were derived from Jackson-Chalmers equations. Once Si solute concentration exceeds eutectic composition, primary silicon precipitates are formed at the front of solid/liquid interface. 展开更多
关键词 Al-Si alloys SOLIDIFICATION crystal growth primary silicon solute redistribution
下载PDF
Nucleation and growth of eutectic cell in hypoeutectic Al-Si alloy 被引量:5
11
作者 孙瑜 庞绍平 +2 位作者 刘学然 杨子润 孙国雄 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第10期2186-2191,共6页
The nucleation and growth of eutectic cell in hypoeutectic Al-Si alloy was investigated using optical microscopy and scanning electron microscopy equipped with electron backscattering diffraction(EBSD).By revealing ... The nucleation and growth of eutectic cell in hypoeutectic Al-Si alloy was investigated using optical microscopy and scanning electron microscopy equipped with electron backscattering diffraction(EBSD).By revealing the eutectic cells and analyzing the crystallographic orientation,it was found that both the eutectic Si and Al phases in an eutectic cell were not single crystal,representing an eutectic cell consisting of small 'grains'.It is also suggested that the eutectic nucleation mode can not be determined based on the crystallographic orientation between eutectic Al phases and the neighboring primary dendrite Al phases.However,the evolution of primary dendrite Al phases affects remarkably the following nucleation and growth of eutectic cell.The coarse flake-fine fibrous transition of eutectic Si morphology involved in impurity elements modification may be independent of eutectic nucleation. 展开更多
关键词 hypoeutectic Al-Si alloy eutectic cell NUCLEATION GROWTH
下载PDF
Effect of growth rate and diameter on microstructure and hardness of directionally solidified Ti-46Al-8Nb alloy 被引量:2
12
作者 刘国怀 李新中 +6 位作者 张元 陈瑞润 苏彦庆 郭景杰 傅恒志 王昭东 王国栋 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第12期4044-4052,共9页
Bridgman-type directional solidification experiments were conducted for Ti-46Al-8Nb (mole fraction, %) alloy. The effects of the growth rate and the diameter on the microstructure, phase transition and hardness of t... Bridgman-type directional solidification experiments were conducted for Ti-46Al-8Nb (mole fraction, %) alloy. The effects of the growth rate and the diameter on the microstructure, phase transition and hardness of the alloy were investigated. The results show that with the increase of the growth rate and the decrease of the diameter, the fullyβphase solidification changes to the peritectic solidification, and the final microstructure is composed of theα2/γlamellar structure and a multiphase microstructure (B2 phase,α2/γlamellar structure) respectively, which can be attributed to the solute enrichment resulting from the decreasing diffusion and convection ability. The occurrence of peritectic reaction at high growth rate promotes the solute segregation heavily and the coarse lamellar spacing in Al-and Nb-rich region, which greatly decreases the hardness values and leads to the discontinuity of the hardness curves with the increase of the growth rate. Comparatively, the Ti-46Al-8Nb alloy has lower hardness values than the other applied TiAl-based alloys in previous studies. 展开更多
关键词 TiAl alloy directional solidification growth rate DIAMETER phase transition
下载PDF
Effect of thermal stabilization on microstructure and mechanical property of directionally solidified Ti-46Al-0.5W-0.5Si alloy 被引量:1
13
作者 樊江磊 李新中 +3 位作者 苏彦庆 陈瑞润 郭景杰 傅恒志 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第5期1073-1080,共8页
Effect of thermal stabilization on the microstructure and mechanical property of directionally solidified Ti-46Al-0.5W-0.5Si (mole fraction, %) alloy was investigated. The specimens were thermal stabilized for diffe... Effect of thermal stabilization on the microstructure and mechanical property of directionally solidified Ti-46Al-0.5W-0.5Si (mole fraction, %) alloy was investigated. The specimens were thermal stabilized for different time (t) and directionally solidified at a constant growth rate of 30 μm/s and temperature gradient of 20 K/mm. Dependencies of the primary dendritic spacing (λ1), secondary dendritic spacing (λ2), interlamellar spacing (λL) and microhardness (HV) on holding time were determined. The values of the λ1, λ2 and λL increase with the increase of t, and the value of HV decreases with the increase of t. The increase of t is helpful to obtain a good directional solidification structure. However, it reduces the mechanical property of the directionally solidified TiAl alloy. The optimized value of t is about 30 min. 展开更多
关键词 INTERMETALLICS TiAl-based alloy crystal growth microstructure evolution mechanical properties
下载PDF
Microstructure and crystal growth direction of Al-Cu alloy 被引量:1
14
作者 陈体军 李向威 +1 位作者 郭海洋 郝远 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第5期1399-1409,共11页
The microstructures and crystal growth directions of permanent mould casting(PMC) and directionally solidified(DS) Al-Cu alloys with different contents of Cu were investigated. Simultaneously, the effects of pouri... The microstructures and crystal growth directions of permanent mould casting(PMC) and directionally solidified(DS) Al-Cu alloys with different contents of Cu were investigated. Simultaneously, the effects of pouring temperature on the microstructure and crystal growth direction of permanent mould casting pure Al were also discussed. The results indicate that the α(Al) crystals in the pure Al do not always keep common columnar grains, but change from the columnar grains to columnar dendrites with developed arms as the pouring temperature rises. The growth direction also varies with the change of pouring temperature. Cu element has similar effects on the microstructures of the PMC and DS casting Al-Cu alloys and the α(Al) crystals gradually change from columnar crystals in turn to columnar dendrites and developed equiaxed dendrites as the Cu content increases. The crystal growth direction in the PMC alloys gradually approaches (110) orientation with increasing Cu content. But the resulting crystals with growth direction of (110) do not belong to feathery grains. There are also no feathery grains to form in all of the DS Al-Cu alloys. 展开更多
关键词 Al-Cu alloy directional solidification crystal growth direction permanent mould casting MICROSTRUCTURE
下载PDF
Growth and corrosion behaviors of thin anodic alumina membrane on AA5083 Al-Mg alloy in incalescent medium 被引量:2
15
作者 王加余 李澄 +2 位作者 郑顺丽 尹成勇 王艳慧 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第9期3023-3030,共8页
A self-ordered porous film was fabricated on aluminum alloy in a ternary boric-sulfuric-oxalic acid electrolyte system. By means of voltage–time response, the oxidation process as well as the growth efficiency was st... A self-ordered porous film was fabricated on aluminum alloy in a ternary boric-sulfuric-oxalic acid electrolyte system. By means of voltage–time response, the oxidation process as well as the growth efficiency was studied. Field emission scanning electron microscopy(FE-SEM) was adopted to reveal the morphological and microstructural features of as-fabricated oxide layers. The corrosion protection properties of the films were investigated by electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The results showed that increasing the concentration of the double ionic layer located at the oxide interface could accelerate the film growth rate. The anodic oxidative layer with thickness of 8-9 μm and pore diameter of 10-14 nm maintains the pattern and topography of workpieces, compared with the overall closed film with hierarchical structure. Both samples exhibited much lower corrosion current density after boil water sealing. Meanwhile, a superior stability could be achieved through raising the ambient temperature. 展开更多
关键词 5083 aluminum alloy ANODIZING film growth efficiency corrosion behavior
下载PDF
Effects of Light Intensity on Growth, Development and Formation on Fagopyrum cymosum 被引量:1
16
作者 华劲松 戴红燕 《Agricultural Science & Technology》 CAS 2014年第3期363-366,共4页
Effects of light intensity on growth, development and formation on Fagopy- rum cymosum were explored with natural light intensities at 100%(A), 85.2%(B), 75.8%(C) and 59.7%(D). The results showed that the decl... Effects of light intensity on growth, development and formation on Fagopy- rum cymosum were explored with natural light intensities at 100%(A), 85.2%(B), 75.8%(C) and 59.7%(D). The results showed that the decline of light intensity re- duced nutrient growth period, so that plant growth stage entered in advance and extended, which indicated that the decline of light intensity would lower leaf number and area, the number of twigs from the stem, as well as photosynthate. Further- more, the reduction degree increased upon light intensity decrease degree, and the proper shading improved stem height and leaf area enhanced before growth term. 展开更多
关键词 Fagopyrum cymosum Light intensity Growth and development Morpho- logical characters
下载PDF
Microstructure evolution and grain growth behavior of Ti14 alloy during semi-solid isothermal process 被引量:6
17
作者 陈永楠 魏建锋 +1 位作者 赵永庆 郑晶 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第5期1018-1022,共5页
Microstructure evolution of Ti14 (α+Ti2Cu) alloy during semi-solid isothermal process at different temperatures was investigated. The results reveal that both the temperature and holding time have effect on the gr... Microstructure evolution of Ti14 (α+Ti2Cu) alloy during semi-solid isothermal process at different temperatures was investigated. The results reveal that both the temperature and holding time have effect on the grain growth behavior. The grains grow obviously and the degree of globularity increases with the increase of holding time. According to the statistic analysis of experimental data, the grain growth indices are 0.88 and 0.97 at 1 000 ℃ and 1 050 ℃, respectively, which indicates that increasing isothermal temperature would accelerate microstructural evolution. 展开更多
关键词 titanium alloy Ti14 alloy SEMI-SOLID microstructure grain growth index
下载PDF
Effect of Si on growth kinetics of intermetallic compounds during reaction between solid iron and molten aluminum 被引量:13
18
作者 尹付成 赵满秀 +2 位作者 刘永雄 韩炜 李智 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第2期556-561,共6页
The effect of Si on the growth kinetics of intermetallic compounds during the reaction of solid iron and molten aluminum was investigated with a scanning electron microscope coupled with an energy dispersive X-ray spe... The effect of Si on the growth kinetics of intermetallic compounds during the reaction of solid iron and molten aluminum was investigated with a scanning electron microscope coupled with an energy dispersive X-ray spectroscope, and hot-dip aluminized experiments. The results show that the intermetallic layer is composed of major Fe2Al5 and minor FeAl3. The Al-Fe-Si ternary phase, rl/rg, is formed in the Fe2Al5 layer. The tongue-like morphology of the Fe2Als layer becomes less distinct and disappears finally as the content of Si in aluminum bath increases. Si in the bath improves the prohibiting ability to the growth of Fe2Als and FeAl3. When the contents of Si are 0, 0.5%, 1.0%, 1.5%, 2.0% and 3.0%, the activation energies of Fe2Al5 are evaluated to be 207, 186, 169, 168, 167 and 172 kJ/mol, respectively. The reduction of the activation energy might result from the lattice distortion caused by Si atom penetrating into the Fe2Al5 phase. When Si atom occupies the vacancy site, it blocks easy diffusion path and results in the disappearance of tongue-like morphology. 展开更多
关键词 intermetallic compound Fe-Al system growth kinetics activation energy SI hot-dip aluminizing diffusion reaction
下载PDF
Directional solidification and characterization of NiAl-9Mo eutectic alloy 被引量:1
19
作者 张建飞 沈军 +2 位作者 商昭 王雷 傅恒志 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第12期3499-3507,共9页
Ni-45.5Al-9Mo (mole fraction,%) alloy was directionally solidified with a constant temperature gradient (GL=334 K/cm) and growth rates ranging from 2 to 300 μm/s using a Bridgman type crystal growing facility wit... Ni-45.5Al-9Mo (mole fraction,%) alloy was directionally solidified with a constant temperature gradient (GL=334 K/cm) and growth rates ranging from 2 to 300 μm/s using a Bridgman type crystal growing facility with liquid metal cooling (LMC) technique. The effect of growth rate (v) on the solidified microstructures such as rod spacing (λ), rod size (d) and rod volume fraction was experimentally investigated. Two types of the solidified interfaces, planar and cellular, were identified. On the condition of both planar and cellular eutectic microstructures, the relationships between λ, d and v were given as: λv1/2=5.90 μm·μm1/2·s1/2 and dv1/2=2.18μm·μm1/2·s1/2, respectively. It was observed that the volume fraction of Mo phase could be adjusted in a certain range. The variation of phase volume fraction was attributed to undercooling increase and the growth characteristics of the individual constituent phases during the eutectic growth. 展开更多
关键词 NiAl-9Mo directional solidification INTERMETALLICS crystal growth MICROSTRUCTURE
下载PDF
Site occupation evolution of alloying elements in Ni_3 V phase during phase transformation in Ni_(75)Al_(4.2)V_(20.8)
20
作者 张明义 李志刚 +3 位作者 张金玲 张会占 陈铮 张嘉振 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第5期1599-1604,共6页
Based on the microscopic phase-field model, the correlation between site occupation evolution of alloying elements in Ni3V-DO22 phase and growth of Ni3Al-L12 phase was studied during the phase transformation of Ni75Al... Based on the microscopic phase-field model, the correlation between site occupation evolution of alloying elements in Ni3V-DO22 phase and growth of Ni3Al-L12 phase was studied during the phase transformation of Ni75Al4.2V20.8. The results demonstrate that the growth of L12 phase can be divided into two stages: at the early stage, the composition of alloying elements in DO22 phase almost remains unchanged; at the late stage, the compositions of Ni and Al decrease while V increases in DO22 phase. Part of alloying elements for L12 phase growth are supplied from the site occupation evolution of alloying elements on three kinds of sublattices in DO22 phase. Ni is mainly supplied from V sublattice, and part of Al is supplied from NiⅠ and V sites at the centre of DO22 phase. The excessive V from the decreasing DO22 phase migrates into the centre of DO22 phase and mainly occupies V and NiII sites. It is the site occupation evolution of antisite atoms and ternary additions in DO22 phase that controls the growth rate of L12 phase at the late stage. 展开更多
关键词 Ni75Al4.2V20.8 alloy grain growth phase transformation microscopic phase-field antisite defect
下载PDF
上一页 1 2 6 下一页 到第
使用帮助 返回顶部