典型文献
Break the strength-ductility trade-off in a transformation-induced plasticity high-entropy alloy reinforced with precipitation strengthening
文献摘要:
Transformation-induced plasticity(TRIP)endows material with continuous work hardening ability,which is considered as a powerful weapon to break the strength-ductility tradeoff.However,FCC based alloys with TRIP effect can not get rid of the"soft"feature of the structure entirely,resulting in insufficient yield strength.Here,a CoxCr25(AlFeNi)75-x high-entropy alloy is designed.NiAl phase is used as strength-ening component to improve yield strength,while TRIP effect ensures plasticity.Compared with the pre-vious TRIP high-entropy alloy,its yield strength is nearly doubled,and the uniform elongation is more than 55%at room temperature.Furthermore,the corresponding multiphase microstructure evolution and deformation mechanisms are investigated.Significantly,stacking faults and Σ3 twin boundaries are con-firmed to be the nucleation sites of HCP phase by HAADF-STEM.Ingenious composition design and proper heat treatment process make it a perfect combination of precipitation strengthening and transformation-induced plasticity,and thus guide design in the high-performance alloy.
文献关键词:
中图分类号:
作者姓名:
Dong Huang;Yanxin Zhuang
作者机构:
Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang,110819,China
文献出处:
引用格式:
[1]Dong Huang;Yanxin Zhuang-.Break the strength-ductility trade-off in a transformation-induced plasticity high-entropy alloy reinforced with precipitation strengthening)[J].材料科学技术(英文版),2022(13):125-132
A类:
CoxCr25,AlFeNi
B类:
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AB值:
0.581945
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