Study on the Properties of a New Type of Mechanical Die Steel Containing Titanium

In this paper,a new type of mechanical die steel specimens containing titanium with different titanium contents were prepared,and their wear resistance at room temperature,high temperature wear resistance and high temperature oxidation resistance were tested and analyzed.The results show that with the increase of titanium content from 0 to 0.10%,wear volume and weight gain per unit area of mechanical die steel samples at both the room temperature and high temperature decrease firstly and then increase,while wear resistance and high temperature oxidation resistance increase firstly and then decrease slowly.When the content of titanium is 0.06%,the wear volume and weight gain per unit area of the mechanical die steel sample at both room temperature high temperature are the smallest,which are 8×10^-3mm³,13×10^-3mm³ and 3.2 g/cm²,respectively,decreasing by 38.46%,53.57%and 33.33%respectively compared with titanium free steel.The optimal titanium content for the new developed mechanical die steel is at 0.06%.