| 合金元素的添加对Fe3Al基合金有序转变温度的影响 |
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| 引用本文： | 姚正军,苏宏华,向定汉.合金元素的添加对Fe3Al基合金有序转变温度的影响[J].南京航空航天大学学报,2002,34(3):230-234. |
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| 作者姓名： | 姚正军 苏宏华 向定汉 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院,南京,210016 |
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| 摘 要： | 用电阻法研究了Cr,Mo和Nb等常用合金元素的添加对Fe3Al基合金有序转变温度Tc的影响，结果表明，Fe3Al材料本身的进一步有序化和沉淀相的溶解使其R－T曲线出现反常现象。Cr的含量对三元Fe-Al-Cr合金中Tc温度无显著影响，将Mo.Nb加入到Fe3Al中会导致其Tc温度增加，在四元Fe-Al-Cr-Mo合金中，Mo和Cr的良好匹配能有效地提高Fe3Al的Tc温度。
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| 关 键 词： | 合金元素 有序转变温度 影响 Fe3Al基合金 钼 铬 铌 |
| 文章编号： | 1005-2615(2002)03-0230-05 |
| 修稿时间： | 2001年7月6日 |
Effect of Elements Additions on Order Transformation Temperature of Fe3Al-Based Alloys |
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| Yao Zhengjun Su Honghua Xiang Dinghan College of Materials Science and Technology,Nanjing Uniuersity of Aeronautics & Astronautics Nanjing ,P.R.China.Effect of Elements Additions on Order Transformation Temperature of Fe3Al-Based Alloys[J].Journal of Nanjing University of Aeronautics & Astronautics,2002,34(3):230-234. |
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| Authors: | Yao Zhengjun Su Honghua Xiang Dinghan College of Materials Science and Technology Nanjing Uniuersity of Aeronautics & Astronautics Nanjing PRChina |
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| Institution: | Yao Zhengjun Su Honghua Xiang Dinghan College of Materials Science and Technology,Nanjing Uniuersity of Aeronautics & Astronautics Nanjing 210016,P.R.China |
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| Abstract: | The effects of additions of chromium, molybdenum and niobium on order transformation temperature of Fe 3Al-based alloys are investigated by measuring its electric resistance. Due to further ordering and precipitation dissolving in Fe 3Al-based alloys,the resistence-temperature curves tested become abnormal. Addition of chrominum to ternary Fe-Al-Cr alloys results in insignificant effect on the order transformation temperature. Both molybdenum and niobium addition to Fe 3Al-based alloys increase their order transformation temperature.In Fe-Al-Cr-Mo alloys,optimum combination of molybdenum and chromium can effectively improve the order transformation temperature of Fe 3Al-based alloys. |
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| Keywords: | Fe 3Al Cr Mo Nb order transformation |
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