標題: Corrosion behaviors of austenitic Fe-30Mn-7Al-xCr-1C alloys in 3.5% NaCl solution
作者: Tuan, Y. H.
Wang, C. S.
Tsai, C. Y.
Chao, C. G.
Liu, T. F.
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Alloy;Corrosion;Electrochemical techniques;Carbides
公開日期: 15-四月-2009
摘要: The corrosion behaviors of the as-quenched Fe-30wt.%Mn-7wt.%Al-xwt.%Cr-1 wt.%C alloys (x = 0, 3, 6 and 9) in 3.5% NaCl have been investigated. Passivation could be observed for all the alloys except for the alloy without Cr content. The corrosion potential (E(corr)) and pitting potential (E(pp)) increased pronouncedly with increasing Cr content up to 6 wt.%, and decreased as Cr content up to 9 wt.%. The decrease of E(corr) and E(pp) of the alloy containing 9 wt.% Cr was due to the formation of (Fe,Mn,Cr)(7)C(3) carbides in the austenite matrix and on the grain boundaries. It is noted that the corrosion behaviors of the austenitic Fe-Mn-Al-Cr-C alloys with higher Cr(>= 3 wt.%) content have never been reported in previous literatures. (C) 2008 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.matchemphys.2008.10.009
http://hdl.handle.net/11536/7366
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2008.10.009
期刊: MATERIALS CHEMISTRY AND PHYSICS
Volume: 114
Issue: 2-3
起始頁: 595
結束頁: 598
顯示於類別:期刊論文


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