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An Empirical Model for Carbon Diffusion in Austenite Incorporating Alloying Element Effects

机译：含合金元素效应的奥氏体中碳扩散的经验模型

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摘要

The diffusion of carbon in austenite is important to the design and implementation of many steel heat-treating processes. The present study proposes a simple and computationally efficient equation for the diffusion of carbon in austenite for iron-carbon alloys, as well as for steels alloyed with a variety of elements. The proposed empirical model provides a pragmatic engineering approach to this important diffusion process. The model is shown to better match the carbon diffusion profiles of several carburized steel alloys, as compared to other equations that have been reported in the literature. These other equations were primarily obtained from experiments on iron-carbon alloys, and it is not surprising that they are less accurate when compared to the proposed equation that takes the full range of alloy compositions into account.
机译：奥氏体中碳的扩散对许多钢热处理工艺的设计和实施很重要。本研究为铁碳合金以及与多种元素合金化的钢提出了一个简单且计算有效的方程，用于奥氏体中碳的扩散。提出的经验模型为这一重要的扩散过程提供了一种实用的工程方法。与文献中已报道的其他方程式相比，该模型显示出更好地匹配了几种渗碳钢合金的碳扩散曲线。这些其他方程式主要是从铁-碳合金的实验中获得的，与建议的方程式（考虑了合金的全部范围）相比，它们的准确性较低也就不足为奇了。

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  • 来源
    《ISIJ international》 |2011年第11期|p.1903-1911|共9页
  • 作者

    Seok-Jae LEE; David Kidder MATLOCK; Chester John VAN TYNE;

  • 作者单位

    Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea;

    Advanced Steel Processing and Products Research Center, Colorado School of Mines Golden, CO, 80401 United States of America;

    Advanced Steel Processing and Products Research Center, Colorado School of Mines Golden, CO, 80401 United States of America;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    carbon diffusion; alloy effects on diffusion in austenite; empirical model; experimental data; steels;

    机译：碳扩散合金对奥氏体扩散的影响;实证模型实验数据;钢材;

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