Heat Treatment and Properties of High-Temperature Steels for Rolling Bearings

IF 0.3 Q4 THERMODYNAMICS
O. Beer
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引用次数: 1

Abstract

Abstract It is demonstrated that high speed steels are suitable for manufacturing of heat resistant rolling element bearings especially for applications in aero engines. A detailed analysis of heat treating processes and metallurgical evaluation shows how the properties of these steels grades can be adjusted to meet the specific requirements for engine bearings. Based on results from rig testing it is shown how variations in heat treating parameters can influence the rolling contact fatigue performance. The role of carbides, a typical constituent of high speed steels, on bearing applications is discussed in detail. The high level of heat resistance of high speed steels allows a nitriding in addition to the conventional heat treatment. By nitriding an increase in hardness close to the surface can be achieved which can make bearings more robust against indentation of hard particles. ◼
滚动轴承用高温钢的热处理和性能
研究表明,高速钢是制造耐热滚动轴承的理想材料,尤其适用于航空发动机。热处理工艺和冶金评价的详细分析表明,如何调整这些钢种的性能,以满足发动机轴承的具体要求。根据台架试验的结果,表明热处理参数的变化如何影响滚动接触疲劳性能。详细讨论了高速钢的典型成分碳化物在轴承应用中的作用。高速钢的高耐热性允许在常规热处理之外进行氮化处理。通过氮化可以提高接近表面的硬度,这可以使轴承更坚固,抵抗硬颗粒的压痕。◼
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.50
自引率
33.30%
发文量
43
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