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孔蚀是耐蚀金属的主要腐蚀形式。本文提出多级恒电位法和多点恒电位法测定铝合金的破裂电位E_b,和保护电位E_p,可成倍提高传统的逐点恒电位法的工作效率,而保持同等的测试精确度。
Pitting corrosion is the main form of corrosion resistant metal. In this paper, the multi-level potentiostatic method and the multi-point potentiostatic method are used to measure the rupture potential E_b and the protective potential E_p of aluminum alloy, which can double the working efficiency of traditional point-by-point potentiostatic method and maintain the same test accuracy.