Discussion on High Hardness and Toughness of the Lining Boards of ZG42CrMnSi2MoRE Cast Steel During Production
The test block is cut from the casting and inspected to acquire the experimental data so as to monitor the quality of products.The mechanical properties of the casting by quenching and tempering two times is higher than those of once quench and temper because the grain size and microstructure of abrasion resisting steel is refined after multi-times phase transformation.The high hardness and toughness in the abrasion resisting steel after quenching and tempering two times is due to bainite formation in the location where cooling rate can meet the formation of bainite The.