| 渗碳或碳氮共渗时内氧化的热力学分析 |
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| 引用本文： | 张根元,蔡益新,李春兴. 渗碳或碳氮共渗时内氧化的热力学分析[J]. 金属热处理, 2001, 0(5): 27-29,39 |
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| 作者姓名： | 张根元 蔡益新 李春兴 |
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| 作者单位： | 1. 河海大学 机电工程学院,
2. 常州纺织机件厂, |
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| 摘 要： | 应用热力学原理，在渗碳或碳氮共渗处理时给出了钢中合金元素Cr、Mn、Ti发生内氧化的热力学判据。计算了实际炉内气氛中氧分压的值，结果表明在实际处理时钢中Cr、Mn、Ti元素在热力学上均会发生内氧化，讨论了碳势及氧电势对内氧化的影响，分析了内氧化的氧化特征，浅了内氧化的动力学。
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| 关 键 词： | 渗碳 碳氮共渗 内氧化 热力学分析 氧分压 |
| 文章编号： | 0254－6051(2001)05-0027-03 |
Thermodynamics Analysis of Internal Oxidation in Carburizing or Carbonitriding Heat Treatment |
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| ZHANG Gen-yuan,CAI Yi-xin,LI Chun-xing. Thermodynamics Analysis of Internal Oxidation in Carburizing or Carbonitriding Heat Treatment[J]. Heat Treatment of Metals, 2001, 0(5): 27-29,39 |
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| Authors: | ZHANG Gen-yuan CAI Yi-xin LI Chun-xing |
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| Affiliation: | ZHANG Gen yuan 1,CAI Yi xin 2,LI Chun xing 2 |
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| Abstract: | The internal oxidation problem of 20 and 20CrMnTi steel in carburizing or carbonitriding was analyzed by thermdynamics．The internal oxidation thermodynamics criterion of Cr、Mn、Ti elements in steel was given out．The partial oxygen pressure in furnace atmosphere was calculated，in which the internal oxidation of Cr、Mn、Ti elements could be formed in above treatment．The effect of carbon potential or oxygen electrical potential for internal oxidation was discussed．The oxidation characteristic of internal oxidation was analyzed．The kinetics of internal oxidation was briefly discussed． |
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| Keywords: | carburizing or carbonitriding internal oxidation thermodynamics analysis partial oxygen pressure |
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