利用热力学计算软件ThermoCalc和Gleeble物理模拟技术辅助进行抗剥离车轮钢的合金设计。热力学计算结果显示，从成分设计的角度出发，提高Si含量和降低C含量会提高车轮钢的相变点，可有效抑制车轮钢的制动剥离现象。动态升温模拟试验也说明，提高Si含量可改善车轮钢的抗剥离性能。但是，降低C含量也带来车轮钢耐磨性的降低，而提高Si含量则在基本不损害塑性的情况下，显著提高车轮钢的强度。
Utilizing ThermoCalc,a thermodynamic computational software, and Gleeble simulation tester, chemistry design of spallingresistant wheel steels was investigated. The computational results showed that increasing Si content as well as decreasing C content is effective to reduce tread spalling since they both elevate transformation temperature of wheel steels. And Gleeble simulation test provides the evidence of improved spalling resistance by Si addition in kinetics. However, as one of the two methods to improve spalling resistance, decreasing C brings about wearresistance reduction of wheel steel while Si addition increases the strength of wheel steels remarkably with slightly reduced ductility.
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