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研究了形变对奥氏体不锈钢在酸性氯离子溶液中阳极溶解的加速作用以及阳极溶解对力学行为的影响。形变使腐蚀电流密度显著增加,使阳极和阴极反应加速。阳极电流不但使恒载荷下的不锈钢蠕变速度增加,而且使屈服强度下降。形变的热激活理论分析表明蠕变速率的对数和阳极电流的对数成线性关系,屈服强度的倒数和阳极电流的对数成线性关系,这和实验结果符合得很好。
The effect of deformation on the anodic dissolution of austenitic stainless steel in acid chloride solution and the effect of anodic dissolution on the mechanical behavior were investigated. Deformation causes a significant increase in corrosion current density, accelerating the anode and cathode reactions. The anode current not only increases the creep rate of stainless steel under constant load, but also decreases the yield strength. The theoretical analysis of the thermal activation of deformation shows that the logarithm of the creep rate is linear with the logarithm of the anode current, and the reciprocal of the yield strength is linear with the logarithm of the anode current, which is in good agreement with the experimental results.