弹性拉应力下Q235碳钢在5%NaCl盐雾中的成锈行为及其机理

李谦, 刘凯, 赵天亮

Rust Formation Behavior and Mechanism of Q235 Carbon Steel in 5%NaCl Salt Spray Under Elastic Tensile Stress

LI Qian, LIU Kai, ZHAO Tianliang

图8 加载方式A和B下Q235碳钢在5%NaCl盐雾中暴露15 d后测得的开路电位随钢基体所受弹性拉应力水平的变化

Fig.8 Variations of the open circuit potential measured under the loading methods A and B with elastic tensile stress level for Q235 carbon steel in 5%NaCl salt spray for 15 d (Method A—during the salt spray test period of 15 d and the electrochemical test process, the sample kept the stress loading state; Method B—no stress was loaded on the sample within 15 d of the salt spray test period, and the stress was loaded on the sample during electrochemical test after the salt spray test)