Microstructural evolution and mechanical properties of Cr-Ru alloys

被引：5
|
作者：
Gu, YF [1 ]
Harada, H [1 ]
Ro, Y [1 ]
Kobayashi, T [1 ]
机构：
[1] Nat Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2005年 / 36A卷 / 03期
关键词：
D O I：
10.1007/s11661-005-0172-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In an effort to enhance ductility and strength of Cr-base alloys, a series of Cr-Ru alloys with Ru contents ranging from 3 to 30 at. pct were made to study their microstructure evolution and mechanical properties. The microstructure of the alloys with 6 to 20 at. pet Ru showed signs of a eutectic structure. However, no corresponding eutectic reaction is indicated in the published Cr-Ru phase diagram. The yield strength of the Cr-Ru alloys increased with increasing Ru content at both tooth temperature and 1200 degreesC. The tensile ductility of Cr-3 at. pct Ru is about 1.5 pct at room temperature, while the alloys containing 6 at. pct or more Ru showed zero tensile elongation. The deformation mechanisms of the Cr-Ru alloys are discussed in terms of the microstructure and fracture behavior.
引用
收藏
页码：577 / 582
页数：6
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