Failure Analysis of Fractured Cylinder Bolt

6th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Zhang, Xiaodan^1 ; Li, Nan^1 ; Luo, Zhiqiang^1 ; Li, Jikang^1 ; Liu, Long^1

Central Iron and Steel Research Institute, College South road 76th, Haidian District, Beijing, China^1

关键词: Chemical component;    Fracture morphology;    Hydrogen-induced delayed fractures;    Intergranular;    Metallographic test;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/472/1/012039/pdf
DOI  :  10.1088/1757-899X/472/1/012039

来源: IOP

【 摘 要 】

Failure analysis of 42CrMo cylinder bolt had been done through the chemical component analysis, tensile test, metallographic test and fracture morphology observation. It was identified brittle fracture. The crack was mainly intergranular and propagated to fracture. The results show that it is hydrogen induced delayed fracture.