Effect of water toughening on microstructure and mechanical properties of high manganese steel casting
Once again water toughening was carried out on a commercial ZGMn 13-4 high manganese steel , microstructure and mechanical properties of the tested steel before and after reheat treatment were tested and compared , and defects of the original water toughening process was analyzed .The results showed that the massive carbides existed in austenite grain boundaries as a network structure in microstructure of the steel and its impact absorbed energy was 41.7 J and the hardness was above 230 HB.After reheat treatment, the microstructure was an austenite single phase structure only and the carbides disappeared , and a preferable mechanical property match was obtained with the impact absorbed energy of 114.8 J and the hardness below 200 HB.
high manganese steellining platewater tougheningcarbidesimpact absorbed energy
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NSTL
万方数据
维普
