Strengthening mechanisms in a rapidly solidified and aged Cu-Cr alloy

被引：72

作者：

Liu, P ^{[1
]}

Kang, BX ^{[1
]}

Cao, XG ^{[1
]}

Huang, JL ^{[1
]}

Gu, HC ^{[1
]}

机构：

[1] Luoyang Inst Technol, Dept Mat Engn, Luoyang 471039, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2000年 / 35卷 / 07期

关键词：

D O I：

10.1023/A:1004760014886

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A single-roller melt spinning method was used to produce Cu-Cr microcrystal alloy ribbons. Upon proper aging treatment, the strength and hardness of the alloy were remarkably enhanced while the conductivity only had a minimal decrease. Grain refinement and coherent dispersion strengthening were proved to be the major factors contributing to the improvement of strength and hardness of the alloy after aging. The degree of coherent strengthening was almost identical with that calculated by the Gerold equation. Compared with the solid solution quenched Cu-Cr alloy, the peak hardness was increased 2.6 times, in which about 27% was attributed to the grain refinement and 73%, in turn, provided by coherent strengthening due to aging precipitation. Neither the solid solution strengthening nor vacancy strengthening had detectable effect on the strength and hardness of the rapidly solidified Cu-Cr alloy. (C) 2000 Kluwer Academic Publishers.

引用

页码：1691 / 1694

页数：4

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