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首页> 外文会议>Iron Steel Supplement 2005 vol.40: The Joint International Conference of HSLA Steels 2005 and ISUGS 2005 >Development of the Limited Hardenability Steel and Its Contact Fatigue Behavior
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Development of the Limited Hardenability Steel and Its Contact Fatigue Behavior

机译：有限淬透性钢的发展及其接触疲劳行为

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摘要

The composition of a limited hardenability steel is designed by means of Grossmann's method. The depth of the hardened layer is designed as 3.5～4.0 mm. In order to obtain penetrate heating of bearing rings and suitable dissolving of carbides, medium frequency induction heating is applied with a definite time period. After quenching and tempering, the microstructures, stress distribution, martensite carbon content and contact fatigue behavior of the bearing rings are measured. Experiments show the contact fatigue behavior of bearings of limited hardenability steel is much higher than the Railway Ministration Standard, and the temperature difference before and after test is much lower than the standard. Theory analysis reveals the factors to strengthen the fatigue behavior of the new steel.
机译：有限淬透性钢的成分是通过格罗斯曼（Grossmann）方法设计的。硬化层的深度设计为3.5〜4.0mm。为了获得轴承套圈的穿透加热和碳化物的适当溶解，中频感应加热应有一定的时间间隔。淬火和回火后，测量轴承套圈的显微组织，应力分布，马氏体碳含量和接触疲劳行为。实验表明，有限淬透性钢轴承的接触疲劳性能远高于铁路部《钢结构标准》，并且试验前后的温差远低于该标准。理论分析揭示了增强新钢疲劳性能的因素。

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