Development of high strength, high conductive copper-base in-situ composite

被引:0
|
作者
Suzuki, HG [1 ]
Takeuchi, T [1 ]
Mihara, K [1 ]
Adachi, K [1 ]
Jin, Y [1 ]
Tsubokawa, Y [1 ]
机构
[1] Natl Res Inst Met, Tokyo 153, Japan
关键词
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Cu-15% Cr-Zr in situ composite which has the strength level higher than 1100 MPa and electrical conductivity exceeding 70% IACS, has been developed by optimizing the alloy compositions as well as thermomechanical process. Cold drawing is effective to refine lamellar spacing of second phase (I Cr fiber) and aging treatment just after solutioning gives precipitation strengthening and recovery of electrical conductivity. The optimization of each process was conducted. The tensile strength follows Hall-Petch type equation with lamellar spacing of Cr. The additions of carbon refine the solidification structure, while zirconium increases the precipitation hardening. The method for process optimization and the mechanism of strengthening of in situ composite are described in the present paper.
引用
收藏
页码:359 / 367
页数:9
相关论文
共 50 条