Achieving homogeneous Fe distribution and high strength in Cu-Fe composite consolidated by powder rolling

被引：8
作者：
Peng, S. Y. [1 ]
Tian, Y. Z. [1 ,2 ]
Yang, Y. [1 ]
Jiang, M. [1 ]
Li, H. X. [1 ]
Wang, J. W. [3 ,4 ,5 ]
Li, S. [1 ,2 ]
Qin, G. W. [1 ,2 ]
机构：
[1] Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Res Ctr Met Wires, Shenyang 110819, Peoples R China
[3] Zhejiang Univ, Ctr Electron Microscopy, Hangzhou 310027, Peoples R China
[4] Zhejiang Univ, State Key Lab Silicon Mat, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
[5] Zhejiang Univ, Inst Wenzhou, Wenzhou Key Lab Novel Optoelect & Nano Mat, Wenzhou 325006, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2023年 / 884卷
关键词：
Powder rolling; Cu-Fe composite; Electrical conductivity; Precipitate; Strength; MARTENSITIC-TRANSFORMATION; MECHANICAL-PROPERTIES; COPPER-IRON; MICROSTRUCTURE; PRECIPITATION; EVOLUTION; BEHAVIOR; MODEL;
D O I：
10.1016/j.msea.2023.145563
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The Fe macrosegregation during casting and the limited sample size of the traditional powder metallurgy methods are challenges for the application of Cu-Fe composite. In this work, a powder rolling strategy is developed to fabricate fully dense Cu-10Fe billet by consolidating pure Cu and Fe powders. This method can solve the above problems. The microstructure evolution at different processing stages was characterized in detail by scanning electron microscope (SEM), electron probe microanalysis (EPMA) and transmission electron microscope (TEM). The Fe macrosegregation was avoided and good metallurgical bonding quality between powders was achieved after cold rolling. Ordered clusters were formed in the Fe phase, and three different types of Fe precipitates were found in the Cu matrix. The formation mechanisms of ordered structure and precipitates were analyzed. The variation of mechanical and electrical properties with aging process was discussed.
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页数：8
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