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机译:社论

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摘要

The present issue brings together the papers of authors who deal with steels and thermal treatment, as well as investigations of steel in various applications.rnIn a review paper, Canale et al. present different views on the determination of tempering parameters in the heat treatment of steels. A starting point to determine a tempering temperature is a Holloman-Jaffe or Larsen-Miller parameter, on which other authors also elaborated their models with different modifications. Thus, Fullman proposed a parameter based on Johnson and Mehl's inventory of heterogeneous transformation using a kinetic theory. Reti, with his co-authors, also started from the kinetic theory and elaborated generalised nomograms for the determination of hardness variation in both isothermal and non-isothermal tempering. Lin proposed an equation with adapted nomograms with a correlation between the hardness, tempering temperatures and tempering times. In the paper, numerous reference data for individual steels are given for isothermal and non-isothermal tempering, thus providing users with numerous useful data on tempering conditions.
机译:本期汇集了处理钢材和热处理的作者的论文,以及在各种应用中对钢材的研究。在一篇评论性论文中,Canale等人。对于确定钢热处理中的回火参数,人们有不同的看法。确定回火温度的出发点是Holloman-Jaffe或Larsen-Miller参数,其他作者还基于这些参数对模型进行了不同的修改。因此,Fullman使用动力学理论根据Johnson和Mehl的异质转化清单提出了一个参数。 Reti和他的合著者也从动力学理论出发,并详细阐述了用于确定等温和非等温回火中硬度变化的广义列线图。 Lin提出了一个带有经过调整的列线图的方程,其中硬度,回火温度和回火时间之间具有相关性。在本文中,给出了各种钢的等温和非等温回火参考数据,因此为用户提供了许多关于回火条件的有用数据。

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