METASTABLE R-PHASE IN Fe-Cr-Mo AND Fe-Cr-W ALLOYS

被引：0
|
作者：
HAMAGOCHI Yoshikazu
KUWANO Hisashi
机构：
[1] Muroran Institute of Technology Muroran
[2] Japan
来源：
Acta Metallurgica Sinica(English Edition) | 1991年 / 03期
关键词：
Fe-Cr-Mo alloy; Fe-Cr-W alloy; precipitation; metastable R-phase;
D O I：
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中图分类号：
学科分类号：
摘要：
The precipitation behaviour of Fe-Cr-Mo and Fe-Cr-W alloys during aging has been ex-perimentally studied.It was found that in the early stage of aging,a metastable R phase pre-cipitated in both alloys,it was transformed into stable μ-phase,Laves-phase,X-phase orσ-phase in the later stages.The crystallographic structure of metastable R-phase isrhombohedral with lattice parameters of a=0.9075 nm and α=74.45°.The chemical compo-sition of R-phase is Fe-(27.5—34.9)Mo-(0—25.5)Cr and Fe-(28.9—33.0)W-(9.36—21.0)Cr in at.-% in Fe-Cr-Mo and Fe-Cr-W system,respectively.
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页码：172 / 176
页数：5
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