Fracture Analysis of Cast Steel Sling
Abstract
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.
- Publication:
-
Materials Science and Engineering Conference Series
- Pub Date:
- February 2018
- DOI:
- 10.1088/1757-899X/307/1/012071
- Bibcode:
- 2018MS&E..307a2071L