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THE EFFECT OF W ON THE REPASSIVATION BEHAVIOR OF Ni-ADDED STAINLESS STEELS
The effect of W on the repassivation behavior of Ni-added stainless steels was investigated with respect to the repassivation rate and the SCC susceptibility. It was found that more stable passive film was formed on the W-modified stainless steels than that of steels without W-modification, and the repassivation rate was faster for W-modified stainless steels in acidic chloride solution (0.5M H2SO4+3.5% Cl-). In neutral chloride solution (1M MgCl2), there were no significant differences on both passivation properties and the repassivation rates for duplex stainless steels,while W-modified austenite stainless steel showed faster repassivation rate. The SCC tests verified that W-modified Ni-added stainless steels exhibited better SCC resistance than steels without W in chloride solution. Moreover, W-modification in higher Ni-added stainless steels exhibited more remarkable SCC resistance than steels with lower Ni content in chloride solution.
作 者： J.X. Pan K. Y. Kim 作者单位： J.X. Pan(Jiuquan Iron & Steel (Group) Co. Ltd, Jiayuguan 735100, China)K. Y. Kim(Pohang University of Science and Technology, Pohang 790-784, Korea)
刊 名： 金属学报（英文版） ISTIC EI 英文刊名： ACTA METALLURGICA SINICA 年，卷(期)： 2005 18(4) 分类号： O6 关键词： stainless steel repassivation stress corrosion cracking scratching electrode technique【THE EFFECT OF W ON THE REPASSIVATION】相关文章：
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