Effects of precipitation and strain-induced martensitic transformation of Fe-C phases on the mechanical properties of Cu-Fe-C alloy

被引：15

作者：

Guo, M. X. ^{[1
]}

Zhu, J. ^{[1
]}

Yi, L. ^{[1
]}

Wang, F. ^{[1
]}

Li, G. J. ^{[1
]}

Lei, R. S. ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 697卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Cu-Fe-C alloy; Precipitation; Strain-induced; Martensitic transformation; Strengthening; ELECTRICAL-CONDUCTIVITY; DEFORMATION; PARTICLES; MICROSTRUCTURE; COMPOSITES; NUCLEATION; STRENGTH; MATRIX;

D O I：

10.1016/j.msea.2017.05.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effects of precipitation and strain-induced martensitic transformation of Fe-C phases on the mechanical properties of Cu-Fe-C alloy were systematically studied. The results reveal that, the hardness and strengths of Cu-Fe-C alloy can be increased after cold rolling, and forming shear bands in the alloy matrix. However, compared with directly cold rolling, the hardness, strengths and elongation can be all increased much more after using the processing of cold rolling 80% + heat treatment at 400 degrees C for 60 min + cold rolling 75%, which results from the contribution of both work hardening and precipitation strengthening of nano-sized alpha-Fe particles formed by strain-induced martensitic transformation. The formed a-Fe particles satisfy the K-S orientation relationship with Cu matrix, i.e. (011)(alpha-Fe)//(- 111)(Cu),[- 11-1] (alpha-Fe)//[110](Cu). These findings provide inspiring using the martensitic transformation of Fe-C phases to improve mechanical properties of Cu-Fe-C alloys.

引用

页码：119 / 125

页数：7

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