MICROSTRUCTURAL FEATURES OF A NEW PRECIPITATION-STRENGTHENED CU-8CR-4NB ALLOY

被引：18

作者：

GROZA, JR

机构：

[1] Mechanical, Aeronautical and Materials Engineering Department, University of California at Davis, Davis

来源：

MATERIALS CHARACTERIZATION | 1993年 / 31卷 / 03期

关键词：

D O I：

10.1016/1044-5803(93)90054-Y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructural characteristics of a new precipitation-strengthened copper alloy with 8 at.% Cr and 4 at.% Nb (Cu-8Cr-4Nb) have been investigated using transmission electron microscopy. A bimodal distribution of Cr2Nb precipitates was found in extruded and aged alloys. Specific particle microstructures were identified to distinguish between primary and secondary precipitates that were directly related to liquid and solid precipitation processes. In the study of the microstructural changes upon aging, no significant coarsening of the Cr2Nb precipitates was observed during aging at 773 and 973K up to 100 h.

引用

页码：133 / 141

页数：9

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