Fracture Analysis of Cast Steel Sling

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Li, Xinghui^1

Department of Architecturl Engineering, Jiangsu Prvince Xuzhou Technician Institute, Xuzhou, Jiangsu, China^1

关键词: Cast steel;    Casting defect;    Chemical composition analysis;    Fracture analysis;    Heat treatment process;    Macroscopic morphology;    Metallography analysis;    Widmanstatten structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012071/pdf
DOI  :  10.1088/1757-899X/307/1/012071

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The fracture reasons of ZG270-500 cast steel sling are analyzed through such means as macroscopic morphology analysis, chemical composition analysis, and microscopic metallography analysis. Results: coarse Widmanstatten structure and casting defects occurring in casting and subsequent heat treatment process reduce the strength, plasticity and toughness of the steel, which is the main reason of brittle fracture of the sling during work, and corresponding improvement suggestions are proposed herein.