YIELDING AND FRACTURE IN TUNGSTEN AND TUNGSTEN-RHENIUM ALLOYS

被引：169

作者：

RAFFO, PL

机构：

[1] Lewis Research Center, National Aeronautics and Space Administration, Cleveland

来源：

JOURNAL OF THE LESS-COMMON METALS | 1969年 / 17卷 / 02期

关键词：

D O I：

10.1016/0022-5088(69)90047-2

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 study was made of the mechanical properties of vacuum arc-melted tungsten and tungsten-rhenium alloys in the temperature range 77 °-810 °K in order to elucidate the mechanism by which rhenium additions lower the ductile-brittle transition temperature of tungsten. The temperature and strain rate dependency of the yield stress of tungsten are reduced by alloying with rhenium, inferring a reduction in the Peierls stress. The reduction in the transition temperature is attributed to the reduced Peierls stress through its effect on the mobility and rate of multiplication of dislocations. © 1969.

引用

页码：133 / &

共 46 条

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