A multiscale architectured CuCrZr alloy with high strength, electrical conductivity and thermal stability

被引：89

作者：

Liang, Ningning ^{[1
]}

Liu, Jizi ^{[1
,2
]}

Lin, Sicong ^{[1
]}

Wang, Yue ^{[1
]}

Wang, Jing Tao ^{[1
]}

Zhao, Yonghao ^{[1
]}

Zhu, Yuntian ^{[1
,3
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China

[3] North Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 735卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Copper alloy; ECAP; Ultrafine grains; Nanoscale twins; Precipitates; CU-CR-ZR; SEVERE PLASTIC-DEFORMATION; FINE PRECIPITATION SCENARIOS; ULTRAFINE-GRAINED COPPER; NANOCRYSTALLINE MATERIALS; MECHANICAL-PROPERTIES; ALZNMG(CU) ALLOYS; ECAP; MICROSTRUCTURE; DUCTILITY;

D O I：

10.1016/j.jallcom.2017.11.309

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A multiscale architectured structure, nanotwinned ultrafine grains surrounded by nano-precipitates at grain boundaries, was developed in a bulk Cu-Cr-Zr alloy prepared by aging treatment following equal-channel angular pressing. A superior combination of high strength, high electrical conductivity and good thermal stability was obtained, which avoided the trade-off among these important properties of electric conductive materials. This provides insight understanding on the mechanisms for strengthening, thermal stability and electrical conductivity, and could help the development of high-performance electrical conductors. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1389 / 1394

页数：6