Microstructure and properties of Cu-Fe deformation processed in-situ composite

被引：54

作者：

Zou, Jin ^{[1
]}

Lu, De-Ping ^{[1
]}

Fu, Qing-Feng ^{[1
]}

Liu, Ke-Ming ^{[2
]}

Jiang, Jiang ^{[1
]}

机构：

[1] Jiangxi Acad Sci, Jiangxi Key Lab Adv Copper & Tungsten Mat, Nanchang 330029, Jiangxi, Peoples R China

[2] Nanchang Inst Technol, Jiangxi Key Lab Precis Dr & Control, Nanchang 330099, Jiangxi, Peoples R China

来源：

VACUUM | 2019年 / 167卷

基金：

中国国家自然科学基金;

关键词：

Cu-Fe deformation processed in-situ composite; Fiber structure; Strengthening mechanism; Conductivity; EVOLUTION; STRENGTH; ALLOY;

D O I：

10.1016/j.vacuum.2019.05.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Focus on the preparation process of Cu-14Fe deformation processed in-situ composite, by studying the stage of solidification, deformation, and heat treatment, the evolution of microstructure and the improvement of material properties have been investigated. The primary Fe phase distributed parallel on the longitudinal section and bent on the cross section under the shear stress, finally form the lamellar fiber structure in the deformation process. With cumulative cold deformation strain, the enhancement of tensile strength is attributed to the combined action of fiber strengthening, dislocation strengthening and precipitation strengthening. The strengthening mechanism of Cu-Fe deformation processed in-situ composites follows Hall-Petch relation with heavy strain. Due to the resistivity depends on the influence of impurity scattering and dislocation scattering, the intermediate heat treatment can improve conductivity effectively.

引用

页码：54 / 58

页数：5

共 22 条

[1] ANOMALOUS INCREASE IN STRENGTH OF INSITU FORMED CU-NB MULTIFILAMENTARY COMPOSITES [J].