Experimental assessments on the resistance to oxidation and Cr evaporation of several Fe-Cr based alloys

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题名:	Experimental assessments on the resistance to oxidation and Cr evaporation of several Fe-Cr based alloys
作者:	李雄;Huang, Jian-Jia;Li, Chuan;Lee, Shyong;Li, Ying-Sheng
贡献者:	工學院機械工程學系
关键词:	Alloys
日期:	2013-09-03
上传时间:	2026-04-23 15:09:08 (UTC+8)
出版者:	Elsevier Ltd.
摘要:	摘要： Five selected alloys, Crofer22 APU, Crofer H, ss441 and two different ZMG232 were selected for a cautious study. Our major focus is on the materials' resistance to oxidation and Cr evaporation. Both issues remain to be major concerns in many applications, particularly for interconnects in solid oxide fuel cells. For the part of oxidation, samples of five alloys are placed in an oven heating at 800 degree C for 250 h. The microstructures, morphologies and compositions of samples after oxidation are analyzed by SEM, XRD, EDS on surfaces and cross-sections. Electrical resistance of samples during oxidation is measured by four-point probe to obtain their variations over time. An assembly, of which two alumina plates sandwiching the samples alloys, is specifically designed to test the resistance of specimens to Cr evaporation, which is gauged by the amount of deposited Cr on the two alumina plates under long-hour oxidation. Experimental results revealed that Crofer22 APU has a better performance than others after long-hour oxidation with thinner oxidized layer, lower electrical resistance and less Cr evaporation. 出版日期： 2013-12-01 出處： Intermetallics, 2013-12, Vol.43, p.162-170 識別號： ISSN: 0966-9795 識別號： DOI: 10.1016/j.intermet.2013.07.016
显示于类别:	[機械工程學系] 期刊論文

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