Steady-state creep rates of W-4Re-0.32HfC

被引：0
|
作者：
Park, JJ [1 ]
Jacobson, DL [1 ]
机构：
[1] Univ Calif Los Alamos Natl Lab, Weapon Component Technol Grp, Los Alamos, NM 87545 USA
来源：
RHENIUM AND RHENIUM ALLOYS | 1996年
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A second-phase, particle-strengthened tungsten alloy, tungsten-4w/o rhenium-0.32w/o hafnium carbide (W-4Re-0.32HfC), was creep tested at temperature ranges of 2200-2400 K and stress ranges of 40-70 MPa in an ultrahigh vacuum. Steady-state creep rates for W-4Re-0.32HfC were compared with three second-phase strengthened creep models: the Ansell-Weertman, Lagneborg, and Roesler-Arzt models. The results showed that none of the three models predicted the steady-state creep rates of W-4Re-0.32HfC. However, the recovery creep model of Lagneborg qualitatively fit the steady-state creep rates of the alloy.
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页码：327 / 340
页数：14
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