Study on the Properties of a New Type of Mechanical Die Steel Containing Titanium
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摘要: 制备了不同钛含量的新型含钛机械模具钢试样,并进行了室温耐磨、高温磨损和抗高温氧化性能的测试、分析。试验结果表明:随钛含量从0%逐步增加至0.10%,机械模具钢试样的室温、高温磨损体积和单位面积质量增重均表现为先减小后增大,室温、高温耐磨损性能和抗高温氧化性能先提升后缓缓下降。当钛含量为0.06%时,机械模具钢试样的室温磨损体积、高温磨损体积、单位面积质量增重均最小,分别为8×10-3mm3、13×10-3mm3、3.2g/cm2,较未添加钛时各减小了38.46%、53.57%、33.33%。新型含钛机械模具钢试样的钛含量优选为0.06%。Abstract: 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%.
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