| Cr和La元素对Fe2B相脆性的影响 |
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| 引用本文： | 徐娟,陈琳,孙忠波. Cr和La元素对Fe2B相脆性的影响[J]. 热加工工艺, 2007, 36(20): 4-6 |
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| 作者姓名： | 徐娟 陈琳 孙忠波 |
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| 作者单位： | 河北工业大学,材料科学与工程学院,天津,300130 |
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| 摘 要： | 对金属间化合物Fe2B相的本质脆性进行了分析，探讨了Cr和La元素对Fe2B相脆性的影响和机理。结果认为，Cr和La都可以韧化金属间化合物Fe2B，其中Cr是以置换固溶形式存在于Fe2B中，通过改变Fe2B相的价电子结构．缓和了其本质脆性。
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| 关 键 词： | 脆性 置换 |
| 文章编号： | 1001-3814（2007）20-0004-03 |
| 修稿时间： | 2007-04-11 |
Effect of Chromium and Lanthanum on Brittleness of Fe2B Phase |
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| XU Juan,CHEN Lin,SUN Zhong-bo. Effect of Chromium and Lanthanum on Brittleness of Fe2B Phase[J]. Hot Working Technology, 2007, 36(20): 4-6 |
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| Authors: | XU Juan CHEN Lin SUN Zhong-bo |
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| Affiliation: | College of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130,China |
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| Abstract: | The brittleness of Fe2B phase with and without chromium and lanthanum were investigated. The mechanism and the effect of Cr and La on the brittleness of Fe2B phase were discussed.The results show that, in comparison with pure Fe2B phase, the intrinsic brittleness of Fe2B phase containing Cr or La will be lower. Due to Cr atom replacing the iron atom, the valence electron structure of Fe2B changes. |
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| Keywords: | Fe2B Cr |
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