Pitting corrosion of the high-entropy alloy Co(1.5)CrFeNi(1.5)Ti(0.5)Mo(0.1) in chloride-containing sulphate solutions

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Title:	Pitting corrosion of the high-entropy alloy Co(1.5)CrFeNi(1.5)Ti(0.5)Mo(0.1) in chloride-containing sulphate solutions
Authors:	Chou, YL (Chou, Y. L.) Wang, YC (Wang, Y. C.) Yeh, JW (Yeh, J. W.) Shih, HC (Shih, H. C.)
Contributors:	化材所
Keywords:	Alloy Polarisation Pitting corrosion
Date:	2010-10
Issue Date:	2011-12-09 10:01:36 (UTC+8)
Abstract:	The purpose of this study is to investigate the effect of SO(4)(2-) ions on the pitting potential (E(pit)) and critical pitting temperature (CPT) of high-entropy alloy Co(1.5)CrFeNi(1.5)Ti(0.5)Mo(0.1) in chloride solutions. The results indicate that the values of CPT for the alloy in 0.1, 0.5, and 1 mol/L NaCl are 70, 60 and 60 degrees C, respectively; the values of Epic are linear with the logarithm of chloride concentrations at 70 and 80 degrees C: and the addition of SO(4)(2-) ions to chloride solutions has a positive effect on both F(pit) and CPT as the ratio of SO(4)(2-)/Cl(-) is higher than 0.5. (C) 2010 Elsevier Ltd. All rights reserved.
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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