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表面机械研磨处理Cu-10Ni合金腐蚀性能的研究

, PP. 397-400

Keywords: Cu-10Ni合金,表面机械研磨处理,电化学腐蚀,电化学阻抗

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Abstract:

利用表面机械研磨处理(SMAT)使Cu-10Ni合金表面纳米化.采用电化学极化曲线和电化学阻抗(EIS)技术,分别研究了原始粗晶的、经表面机械研磨处理60min的和表面机械研磨处理60min后200℃下退火6h的Cu-10Ni合金在0.05mol/LNa2SO4和0.05mol/LH2SO4混合溶液中的电化学腐蚀行为.结果表明,表面机械研磨处理的Cu-10Ni合金腐蚀电位产生了负移,其耐腐蚀性能降低了,但其极化曲线呈现钝化特征.

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