Ti对20CrMnTiH齿轮钢接触疲劳性能影响研究
Effect Study of Ti on Contact Fatigue Properties of 20CrMnTiH Gear Steel
摘要:
为避免大颗粒不变形脆性TiN夹杂物对齿轮钢的疲劳寿命的危害，根据钢铁材料的微合金化原理和强韧化原理，对20CrMnTi钢中的钛含量进行优化设计，结果表明，适当降低渗碳钢中的钛含量，可有效减轻或消除含钛渗碳钢中的液析氮化钛从而提高钢材的疲劳寿命。
Abstract:
In order to avoid the harm of the large particle deformation and brittle TiN inclusions to the fatigue life of gear steel, according to the principle of the microalloying and toughening of steel materials, the titanium content in 20CrMnTi was optimized and designed. The results show that reducing the titanium content of carburizing steel can effectively reduce or eliminate liquation TiN of carburizing steel containing Ti, so to improve the fatigue life of steel.
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