DH36海洋工程钢焊接结构的氢脆敏感性研究

李新城, 李兆南, 王海锋, 徐云泽, 王明昱, 甄兴伟

Hydrogen Embrittlement Sensitivity for Welded Structural Parts of DH36 Marine Engineering Steel

LI Xincheng, LI Zhaonan, WANG Haifeng, XU Yunze, WANG Mingyu, ZHEN Xingwei

图9 母材、热影响区和焊缝区在不同电位下拉伸断口形貌图

Fig.9 Microscopic morphologies of fracture surfaces of the base metal (a), heat-affected zone (b) and welding metal (c) with 0 mV (a1-c1), -850 mV (a2-c2), -950 mV (a3-c3), -1050 mV (a4-c4) and -1150 mV (a5-c5) after tensile test at different potentials