Study on the Failure Ratio of the High Carbon Cast Steel Shot

Author:  X. Zhao, R. Liu, H. Wang, H. Gao, L. Zhang, R. Wan
Source:  Shandong University, China - Research Team of Metal Abrasives
Doc ID:  2008041
Year of Publication:  2008
Abstract:  
ABSTRACT The ERVIN test machine was used in this study to mimic the actual blast cleaning process. The high carbon cast steel shot sample, heat-treated at five different temperatures, are put into a ERVIN tester and ran for predefined cycles. The wearing of the samples were examined under a magnifier. The failure ratio was defined and its influencing factors were studied. The results show that the failure modes, including brittle fracture, surface peeling and core spall, can be analyzed by means of failure ratio represented by the defined weight ratioGf/Gt, the failure ratio are affected by the heat treatment, ERVIN cycle, microstructure and flaws, particle size, target hardness. Impact velocity and impact angle play important role in the wearing failure process.