Hydrogen permeation behavior in a Fe3Al-based alloy at high temperature

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	Hydrogen permeation behavior in a Fe3Al-based alloy at high temperature
	X. Y. Cheng; Q. Y. Wu; Y. K. Sun
	2005
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	389 期号:1-2 页码:198-203
摘要	The hydrogen permeation behavior in a Fe3Al-based alloy, with three types of heat treatments, was investigated by an ultrahigh vacuum gaseous permeation technique at the temperature range of 240-320degreesC. A well-defined second stage is observed in hydrogen permeation curves of the Fe3Al alloy superimposed on the basic curves. On the basis of optical microstructures, determined permeabilities and diffusivities, corresponding activation energies, it is suggested that the two sigmoidal curves result from the ordered B-2 phase and disordered alpha-Fe phase in the Fe3Al alloy; the first stage of permeation reflects the hydrogen transport in matrix disordered alpha-Fe phase, while the second stage reflects the hydrogen transport in ordered B-2 phase. (C) 2004 Elsevier B.V. All rights reserved.
部门归属	shanghai univ, mat res inst, shanghai 200072, peoples r china. inst met sci & technol, shenyang 110015, peoples r china.;cheng, xy (reprint author), shanghai univ, mat res inst, shanghai 200072, peoples r china;hhtxy@online.sh.cn
关键词	Iron Alummides Hydrogen Diffusivity Activation Energy Gaseous Permeation Technique Iron Aluminide Diffusivity Transport Feal Embrittlement Nickel Water
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34826
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Cheng,Q. Y. Wu,Y. K. Sun. Hydrogen permeation behavior in a Fe3Al-based alloy at high temperature[J]. Journal of Alloys and Compounds,2005,389(1-2):198-203.
APA	X. Y. Cheng,Q. Y. Wu,&Y. K. Sun.(2005).Hydrogen permeation behavior in a Fe3Al-based alloy at high temperature.Journal of Alloys and Compounds,389(1-2),198-203.
MLA	X. Y. Cheng,et al."Hydrogen permeation behavior in a Fe3Al-based alloy at high temperature".Journal of Alloys and Compounds 389.1-2(2005):198-203.