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《Forging & Stamping Technology》 2009-03
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Research on material constant values of TiB_2/Al during elevated temperature tensile test

GUO Sheng-li1,LI De-fu1, CHEN Dong2,WANG Hao-wei2(1. Processing Engineering Research Center,General Research Institute for Nonferrous Metals, Beijing 100088,China;2. State Key Laboratory of Metal Matrix Composite, Shanghai Jiaotong University, Shanghai 200030, China)  
The elevated temperature tensile test of in-situ TiB2(mass fraction is 8%)/6351 Al composites was carried out in the range of deformation temperature 350-500℃and strain rate 0.0001-1s-1. The material constant values were studied using a hyperbolic sine model. The results show that the hyperbolic sine can satisfactorily describe the correlation between flow stress σP and Z parameter. The values of A , α and n in the analytical expressions of flow stress σP are fitted to be 605.5×1012 s-1,0.027MPa-1 and 10.018. The hot deformation activation energy in Z parameter expression is 256.78kJ·mol-1.
【CateGory Index】: TB331
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【Citations】
Chinese Journal Full-text Database 4 Hits
1 GUO Sheng-wu 1,2,WU Hui-ping 2,3,CHENG Yu2,GUO Cheng2(1.State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China;2.School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;3.Plasticity Forming Engineering Department,Shanghai Jiaotong University,Shanghai 200030,China);Establishment of constitutive relationship for Co40NiCrMo alloy[J];Forging & Stamping Technology;2008-01
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【Co-citations】
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1 GUO Sheng-li1,LI De-fu1,CHEN Dong2,WANG Hao-wei2(1.Processing Engineering Research Center;General Research Institute for Nonferrous Metals,Beijing 100088,China;2.State Key Laboratory of Metal Matrix Composite,Shanghai Jiaotong University,Shanghai 200030,China);Characteristics of Hot Compression Deformation for In-situ TiB_2/6351 Composites[J];Journal of Aeronautical Materials;2009-03
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