用电化学测量技术通过加载时30CrMnSiA在中性溶液中自腐蚀电位和阳极极化曲线负移,及在酸性溶液中电化学阻抗谱的不同变化,研究了静载荷对腐蚀速度的影响.并提出外力是否影响腐蚀速度,应视腐蚀的控制步骤而定的观点.结果表明,当腐蚀体系阴阳极都为活化控制时,外力增加腐蚀速度;当腐蚀体系控制步骤为扩散控制时,外力不影响腐蚀速度;对吸氧腐蚀而言,在外力较大时,还需考虑外力是否导致阴极控制过程的转变.
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