Study on Organization and Properties of the new wear-resistant steel

摘要

By means of wear analysis of the wear-resistant steel used in the process, and adjust the wear-resistant steel composition, by adding alloying elements Cr, Mo and so on, optinlizing heat treatment technique, to get new wear-resistant steel. The HR-150A rock well hardness tester and JB-300B impact tester as well as SHIMADZUAG-I250KV on electronic tensile testing machine were used to test the mechanical properties of materials. In the test of friction and wear performance was done using the high temperature and high-speed friction of wear-testing maching(MMS-1G), and analysis of microscopy and the wear morphology by JSM-5610LV SEM. The results showed that: The hardness of new wear-resistant steel reaches HRC53, the impact toughness 23J/cm~2, And at this moment, the sample matrix is the microstructure of small lath martensite and residual austenite.