同成分的超细贝氏体钢和Q&P钢在海水中应力腐蚀开裂行为对比研究
苏志诚, 张弦, 程焱, 刘静, 吴开明

Comparative Study on Stress Corrosion Cracking Behavior of Ultrafine Bainitic Steel and Q&P Steel with Same Composition in Seawater
SU Zhicheng, ZHANG Xian, CHENG Yan, LIU Jing, WU Kaiming
表4 2种实验钢在加载一定程度后在3.5%NaCl溶液中的极化曲线的拟合参数
Table 4 Fitting parameters of polarization curves of ultrafine bainite steel and Q&P steel after tensile tests to different loads in 3.5%NaCl solution
Fitting parameterIcorr / A·cm-2Ecorr / V
B6.902 × 10-60.476

B(0.75σs)

B(1σs)

QP

1.523 × 10-5

1.697 × 10-5

1.188 × 10-5

-0.290

-0.319

-0.390

QP(0.75σs)3.352 × 10-5-0.332
QP(1σs)3.878 × 10-5-0.370