Q235钢结构件表面热镀锌层的应力腐蚀及其机理

赵骞, 张洁, 毛锐锐, 缪春辉, 卞亚飞, 滕越, 汤文明

Stress Corrosion and Its Mechanism of Hot-dip Galvanized Coating on Q235 Steel Structure

ZHAO Qian, ZHANG Jie, MAO Ruirui, MIAO Chunhui, BIAN Yafei, TENG Yue, TANG Wenming

图13 Q235镀锌钢镀锌层应力腐蚀模型

Fig.13 Stress corrosion model of the galvanized layer of Q235 steel: (a, b) formation of corrosion pit, (c) formation and propagation of stress corrosion crack in η-Zn layer, (d) propagation of the stress corrosion crack in ζ phase layer