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Bonding enhancement of cold rolling TA1 P-Ti/AA6061 composite plates via surface oxidation treatment
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作者 Lun FU Bin YANG +2 位作者 Yun-chang GUO Chao YU Hong XIAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2024年第9期2864-2880,共17页
TA1 P-Ti/AA6061 composite plate was produced by oxidizing the surface of the titanium plate and adopting a cold roll bonding process.The results revealed that the oxide film(Ti6O)prepared on the surface of TA1 pure ti... TA1 P-Ti/AA6061 composite plate was produced by oxidizing the surface of the titanium plate and adopting a cold roll bonding process.The results revealed that the oxide film(Ti6O)prepared on the surface of TA1 pure titanium was easy to crack during the cold roll bonding,thereby promoting the formation of an effective mechanical interlock at the interface,which can effectively reduce the minimum reduction rate of the composite plates produced by cold rolling of titanium and aluminium plates.Moreover,the composite plate subjected to oxidation treatment exhibited high shear strength,particularly at a 43%reduction rate,achieving a commendable value of 117 MPa.Based on oxidation treatment and different reduction rates,the annealed composite plates at temperatures of 400,450,and 500°C displayed favorable resistance to interface delamination,highlighting their remarkable strength-plasticity compatibility as evidenced by a maximum elongation of 31.845%. 展开更多
关键词 Ta1 P-Ti/AA6061 composite plate oxidation treatment annealing treatment cold roll bonding
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Effect of porosity and interface structures on thermal and mechanical properties of SiC_p/6061Al composites with high volume fraction of SiC 被引量:13
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作者 Yu HONG Wu-jie WANG +2 位作者 Jia-qin LIU Wen-ming TANG Yu-cheng WU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第5期941-949,共9页
50 vol.% SiCp/Al composites with high thermal and mechanical properties were successfully produced by spark plasma sintering technique. The influences of sintering temperature on the thermal conductivity, coefficient ... 50 vol.% SiCp/Al composites with high thermal and mechanical properties were successfully produced by spark plasma sintering technique. The influences of sintering temperature on the thermal conductivity, coefficient of thermal expansion and bending strength of the SiCp/Al composites were carefully investigated. The results show that the SiCp/Al composites sintered at 520℃ exhibits a thermal conductivity of 189 W/(m·K), a coefficient of thermal expansion (50.200℃) of 10.03×10^-6 K^-1 and a bending strength of 649 MPa. The high thermal and mechanical properties can be ascribed to the nearly full density and the well interfacial bonding between the alloy matrix and the SiC particles. This work provides a promising pathway for producing materials to meet the needs of high performance electronic packaging. 展开更多
关键词 spark plasma sintering sicp/6061al composites thermal properties mechanical properties
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6061和SiC_p/6061合金时效析出动力学 被引量:5
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作者 朱刚 赵海东 +2 位作者 陈振明 陈飞帆 胡启耀 《中国有色金属学报》 EI CAS CSCD 北大核心 2017年第10期1996-2004,共9页
采用差示扫描量热法(DSC)对SiC_p/6061复合材料和6061合金时效析出动力学进行研究,并结合Avrami-Johnson-Mehl方法分析SiC_p的加入对6061铝合金时效析出动力学的影响,计算出连续升温过程中各亚稳相的析出动力学参数。结果表明:SiC_p抑制... 采用差示扫描量热法(DSC)对SiC_p/6061复合材料和6061合金时效析出动力学进行研究,并结合Avrami-Johnson-Mehl方法分析SiC_p的加入对6061铝合金时效析出动力学的影响,计算出连续升温过程中各亚稳相的析出动力学参数。结果表明:SiC_p抑制6061铝合金GP区的形成,促进β″相、β′相和Q′相、β相和Q相的析出。计算各相析出动力学表达式及TTT曲线,利用硬度测试实验对计算结果进行对比验证。 展开更多
关键词 sicp/6061 析出动力学 差热分析法 TTT曲线
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Al 6061/SiC_p稀土转化膜的组成、结构及性能 被引量:6
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作者 于兴文 曹楚南 +3 位作者 林海潮 周育红 周德瑞 尹钟大 《物理化学学报》 SCIE CAS CSCD 北大核心 2000年第6期547-552,共6页
A double layer Rare Earth Metal (REM) conversion coating process of Al 6061/SiCp metal matrix composites (MMC) was studied.The corrosion resistance of REM conversion coating was examined by electrochemical impedance s... A double layer Rare Earth Metal (REM) conversion coating process of Al 6061/SiCp metal matrix composites (MMC) was studied.The corrosion resistance of REM conversion coating was examined by electrochemical impedance spectroscopy (EIS).REM conversion coating produced very corrosion resistant surface of Al 6061/SiCp MMC.The X ray diffraction (XRD) analysis revealed that REM conversion coatings exhibited non crystalline structure.The composition of REM conversion coating was studied by X ray photoelectron spectroscopy (XPS).The coatings consisted of cerium oxide and hydrated cerium oxide.Some of Ce3+were oxidized to Ce4+during the formation of the first layer coating in the solution containing Ce3+.During the course of exposing the specimens in open air,some of the residual Ce3+were oxidized to Ce4+.REM conversion coating formed in the solution containing Ce4+consisted entirely of Ce4+compounds. 展开更多
关键词 稀土转化膜 耐蚀性 铝基复合材料 表面处理
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热处理对SiC_p/6061Al基复合材料等离子弧焊接头性能的影响
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作者 雷玉成 张振 +1 位作者 陈希章 聂加俊 《焊接学报》 EI CAS CSCD 北大核心 2008年第11期9-12,共4页
热处理对SiCp/6061Al基复合材料等离子弧原位焊接接头组织与性能的影响较为明显,固溶处理+时效与退火相比,前者对接头的改善作用更佳。经500℃固溶处理2h+12h时效热处理后,接头组织得到良好的改善,细长的Al3Ti相变为短小棒状,消除了晶... 热处理对SiCp/6061Al基复合材料等离子弧原位焊接接头组织与性能的影响较为明显,固溶处理+时效与退火相比,前者对接头的改善作用更佳。经500℃固溶处理2h+12h时效热处理后,接头组织得到良好的改善,细长的Al3Ti相变为短小棒状,消除了晶间偏析,组织更加均匀;热影响区组织中晶粒均得到比较明显的细化,比较接近母材晶粒的大小,焊接接头强度较未热处理时有了较大提高,达到245MPa。 展开更多
关键词 sicp/6061a1基复合材料 等离子弧 热处理 显微组织
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Multi-objective optimization of friction stir welding parameters using desirability approach to join Al/SiC_p metal matrix composites 被引量:3
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作者 P.PERIYASAMY B.MOHAN +2 位作者 V.BALASUBRAMANIAN S.RAJAKUMAR S.VENUGOPAL 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第4期942-955,共14页
Silicon carbide particulate (SiCp) reinforced cast aluminium (A1) based metal matrix composites (MMCs) have gained wide acceptance in the fabrication of light weight structures requiring high specific strength, ... Silicon carbide particulate (SiCp) reinforced cast aluminium (A1) based metal matrix composites (MMCs) have gained wide acceptance in the fabrication of light weight structures requiring high specific strength, high temperature capability and good wear resistance. Friction stir welding (FSW) process parameters play major role in deciding the performance of welded joints. The ultimate tensile strength, notch tensile strength and weld nugget hardness of friction stir butt welded joints of cast A1/SiCp MMCs (AA6061 with 20% (volume fraction) of SiCp) were investigated. The relationships between the FSW process parameters (rotational speed, welding speed and axial force) and the responses (ultimate tensile strength, notch tensile strength and weld nugget hardness) were established. The optimal welding parameters to maximize the mechanical properties were identified by using desirability approach. From this investigation, it is found that the joints fabricated with the tool rotational speed of 1370 r/min, welding speed of 88.9 mm/min, and axial force of 9.6 kN yield the maximum ultimate tensile strength, notch tensile strength and hardness of 265 MPa, 201 MPa and HV 114, respectively. 展开更多
关键词 metal matrix composites friction stir welding a1/sicp composites microstructure
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Effect of temperature field on types and distribution of reinforcing phases in “in-situ” weld-alloying/PAW of SiC_p/6061Al
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作者 雷玉成 朱飞 +2 位作者 陈希章 袁为进 程晓农 《China Welding》 EI CAS 2006年第4期13-17,共5页
Based on theories of heat transfer, physical metallurgy and hydro-mechanical, in order to analyze the effect of welding parameters on species and distribution of reinforcing phases visually and legibly,finite element ... Based on theories of heat transfer, physical metallurgy and hydro-mechanical, in order to analyze the effect of welding parameters on species and distribution of reinforcing phases visually and legibly,finite element software ANSYS was used to simulate transient temperature field for SiCp/AI in "in-situ" weld-alloying/plasma arc welding. The results show that the calculated results approximately agreed with the experimental measured results. So the model is basically correct and credible., Based on the numerical solutions and experimental results, effect of temperature field in different welding process parameters(welding current, welding velocity) on species and distribution of reinforcing phases is analyzed. The results show that adjusting and optimizing temperature field appropriately is an effective method to obtain welded joint with better microstructure and property. 展开更多
关键词 sicp/6061a1 plasma arc welding in-situ" reinforced finite element
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采用复合钎料加压钎焊70%SiCp/Al复合材料 被引量:1
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作者 张德库 王恒 +1 位作者 康路路 孙彪 《焊接学报》 EI CAS CSCD 北大核心 2020年第6期67-71,I0004,I0005,共7页
采用机械球磨的方法制备了Al-Si-xSiC(x为体积分数)复合钎料,采用复合钎料实现了70%SiCp/Al复合材料的加压钎焊连接.利用SEM和EDS确定了钎缝是由α-Al,Si,SiC,Al2O3等相组成.结果表明,在压力作用下SiC颗粒被固定在钎缝区而使得钎缝区的... 采用机械球磨的方法制备了Al-Si-xSiC(x为体积分数)复合钎料,采用复合钎料实现了70%SiCp/Al复合材料的加压钎焊连接.利用SEM和EDS确定了钎缝是由α-Al,Si,SiC,Al2O3等相组成.结果表明,在压力作用下SiC颗粒被固定在钎缝区而使得钎缝区的组织类似于复合材料,钎缝中一定的SiC颗粒可以缓解母材与金属钎料之间的热膨胀系数之差,从而减小了焊接残余应力,可以提高接头的强度,而钎焊施加一定的压力则可促进钎料与SiC颗粒的润湿性.工艺适当时,接头最高强度达到125.7 MPa. 展开更多
关键词 sicp/6061aL复合材料 钎焊 复合钎料 加压
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基于Ti中间层的SiC_(p)/6061-T6Al MMCs低功率激光-TIG复合焊接头组织与性能 被引量:1
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作者 巴现礼 高增 +3 位作者 王振江 邱得超 牛济泰 邱玉洁 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2021年第10期3657-3663,共7页
以0.1 mm厚的Ti箔作中间夹层,使用低功率激光-TIG复合焊的方式对SiC_(p)/6061-T6Al MMCs进行焊接,并对接头的宏观形貌、显微组织、物相、电阻率、抗拉强度及断口形貌进行分析。结果表明:激光功率对焊缝的成形有着较大影响;Ti箔的加入基... 以0.1 mm厚的Ti箔作中间夹层,使用低功率激光-TIG复合焊的方式对SiC_(p)/6061-T6Al MMCs进行焊接,并对接头的宏观形貌、显微组织、物相、电阻率、抗拉强度及断口形貌进行分析。结果表明:激光功率对焊缝的成形有着较大影响;Ti箔的加入基本抑制了焊缝中针状Al_(4)C_(3)的生成,并生成TiC增强相以及条状TiAl_(3);焊缝区为等轴晶组织,熔合区为柱状晶组织,热影响区组织变化不明显;随着激光功率的增加,接头的电阻率呈现出增加的趋势,并明显高于母材;在554 W时,接头的抗拉强度可达196.98 MPa,是母材强度的54.71%。接头断口中几乎没有气孔,韧窝中的第二相粒子以TiC为主,接头呈现出以脆性断裂为主的脆-韧性混合断裂特征。 展开更多
关键词 SiC_(p)/6061-T6Al复合材料 激光-TIG复合焊 Ti箔中间层 显微组织 性能
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