Research on stress corrosion behavior of CCSE40 welded by underwater wet welding with austenitic welding rod in seawater

2017 3rd International Conference on Applied Materials and Manufacturing Technology

Zou, Y.^1 ; Bai, Q.^1,2 ; Dong, S.^2 ; Yang, Z.L.^1 ; Gao, Y.^1

Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Institute of Oceanographic Instrumentation, Shandong Academy of Science, 28 Zhejiang Road, Qingdao, China^1

Ocean University of China, Qingdao, China^2

关键词: Austenitic;    Metallographic observations;    Slow strain rate tests;    Stress corrosion;    Stress corrosion behavior;    Stress corrosion cracking susceptibility;    Underwater wet welding;    Weld zone;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/242/1/012044/pdf
DOI  :  10.1088/1757-899X/242/1/012044

来源: IOP

【 摘 要 】

The stress corrosion behavior of CCSE40 welded by underwater wet welding with austenitic welding rod in seawater was studied. Microstructure, mechanical property and stress corrosion cracking susceptibility of the underwater wet welding joint were analyzed by metallographic observation, tensile and bending tests, slow strain rate test (SSRT) and SEM. The results indicated that the weld zone (WZ) and the heat affected zone (HAZ) were all sensitive to the stress corrosion, and the WZ was more sensitive than the HAZ.