| Nb对Fe3Al基合金力学性能的改善作用 |
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| 引用本文： | 张忠铧,孙扬善.Nb对Fe3Al基合金力学性能的改善作用[J].东南大学学报(自然科学版),1996,26(1):31-35. |
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| 作者姓名： | 张忠铧 孙扬善 |
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| 作者单位： | 东南大学材料科学与工程系 |
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| 摘 要： | Ｎｂ对改善Ｆｅ２Ａｌ的高温力学性能有十分重要的作用。在Ｆｅ－２８Ａｌ－５Ｃｒ－０．５Ｍｏ－０．０５Ｚｒ－０．０５Ｂ－０．１Ｃｅ合金中，Ｎｂ的溶解度在０．５ａｔ％左右，Ｎｂ含量超过０．５％时，基体中有富Ｎｂ的第二相颗粒形成。Ｎｂ的加入提高了合金的室温和高温强度，改善了抗蠕变性能，但在一定程度上降低了室温塑性。
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| 关 键 词： | 金属间化合物 铌 力学性能 Fe3Al |
Improvements of Niobium Addition on Mechanical Properties of Fe_3Al-Based Alloys |
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| Zhang Zhonghua,Yangshan,Guo Jun.Improvements of Niobium Addition on Mechanical Properties of Fe_3Al-Based Alloys[J].Journal of Southeast University(Natural Science Edition),1996,26(1):31-35. |
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| Authors: | Zhang Zhonghua Yangshan Guo Jun |
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| Abstract: | Niobium plays an important role in improving mechanical properties of Fe3Al at high temperatures. The solubility of niobium is about 0. 5 at% in the Fe-28Al-5Cr-0. 5Mo-0. 05Zr-0. 05B-0. 1Ce alloy. If the amount of the niobium addition is more than 0. 5 at%,the second phase particles containing niobium will be formed from the matrix. The niobium addition to Fe3Al increases strength at both of room and high temperatures. |
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| Keywords: | intermetallics compounds niobium mechanical properties/Fe3Al |
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