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

图7 2种实验钢在空气与海水环境(3.5%NaCl)中拉伸的应力-应变曲线、加工硬化率曲线与应力腐蚀敏感性

Fig.7 Stress-strain curves (a), stress corrosion sensitivities (b) and work hardening rates (c) of ultrafine bainite steel and Q&P steel during tensile tests in air and 3.5%NaCl solution