摘要
采用交流阻抗谱法和电化学动电位再活化法研究热处理制度对低镍铬锰氮奥氏体不锈钢晶间腐蚀敏感性的影响。结果表明:在550~750℃范围内,晶间腐蚀敏感性随着温度的升高和保温时间的延长而增强。950℃热处理试样无腐蚀倾向。
Effect of heat treatment processes on intergranular corrosion sensitivity of low Ni-Cr-Mn-N austenitic stainless steel was investigated by means of double-loop electrochemical potentiokinetic reaction( DL-EPR) and electrochemical impedance spectroscopy( EIS)methods. The results show that at range of 550-750 ℃,with the prolongation of heating temperature and holding time,the sensitivity of intergranular corrosion rises. And the specimen treated at 950 ℃ has no intergranular corrosion.
引文
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