Effect of hydrogen on room-temperature plasticity of B2 iron aluminides

被引：9
|
作者：
Kupka, Marian [1 ]
Stepien, Karol [1 ]
Kulak, Katarzyna [1 ]
机构：
[1] Univ Silesia, Inst Mat Sci, PL-40007 Katowice, Poland
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 04期
关键词：
Intermetallics; Hydrogen permeation; XRD; Mossbauer spectroscopy; SEM; Hydrogen embrittlement; FE-AL ALLOYS; ENVIRONMENTAL EMBRITTLEMENT; PIPELINE STEEL; ABSORPTION; BEHAVIOR; BORON;
D O I：
10.1016/j.corsci.2010.12.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Different sensitivities to hydrogen embrittlement for the disordered and ordered B2 FeAl alloys have been investigated. The plasticity of annealed alloys (before hydrogenating) has been found to decrease with increasing the long-range order parameter. An intrinsic weakness of FeAl phase grain boundaries revealed at a high degree of ordering. The results of bending tests on specimens annealed and cathodically charged with hydrogen have shown that the influence of hydrogen on the plasticity diminishes with the increase in the degree of FeAl phase ordering. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1209 / 1213
页数：5
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