低温扩散预处理对含B超级奥氏体不锈钢S31254析出相及耐蚀性的影响

何燕, 刘燕, 田华, 陈晔

Effect of Low Temperature Diffusion Pretreatment on Precipitation of Phases During Post-aging Treatment for B-containing S31254 Super Austenitic Stainless Steel and its Corrosion Resistance

HE Yan, LIU Yan, TIAN Hua, CHEN Ye

图7 经300 ℃保温处理不同时间后再经900 ℃时效处理2 h的S31254钢电化学极化腐蚀表面形貌

Fig.7 Surface corrosion morphologies of S31254 steel with isothermal treatment at 300 oC for 0 min (a), 20 min (b), 40 min (c), 60 min (d) and then aging at 900 oC for 2 h after electrochemical polarization