| Mechanical properties and microstructure of Fe3Al intermetallics fabricated by mechanical alloying and spark plasma sintering |
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| 引用本文： | 何箐 贾成厂 孟杰. Mechanical properties and microstructure of Fe3Al intermetallics fabricated by mechanical alloying and spark plasma sintering[J]. 中国有色金属学会会刊, 2006, 16(A03): 1995-1999 |
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| 作者姓名： | 何箐 贾成厂 孟杰 |
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| 作者单位： | School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 摘 要： | Fabrication technology and mechanical properties of the Fe3Al based alloys were studied by spark plasma sintering from elemental powders （Fe-30Al, volume fraction, %） and mechanically alloying powders. The mechanically alloying powders were processed by the high-energy ball milling the elemental mixture powders with the milling time of 5, 8 and 10 min, respectively. The spark plasma sintering process was performed under the pressure of 50 MPa at 1 050 ℃ for 5 min. The phase identification by X-ray diffraction presents the Fe reacts with Al completely during the processing time. The samples are nearly full density （e.g. the relative density of sinter of raw powder is 99%）. The microstructure was observed by TEM. The mechanical properties were tested by three-point bending at room temperature in air. The results show that the mechanical properties are better （e.g. bend strength of 1 500 MPa ） than those of the ordinary Fe3Al casting.
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| 关 键 词： | 铝合金 机械性能 弯曲强度 微观结构 金属化合物 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Mechanical properties and microstructure of Fe3Al intermetallics fabricated by mechanical alloying and spark plasma sintering |
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| HE Qing, JIA Cheng-chang, MENG Jie. Mechanical properties and microstructure of Fe3Al intermetallics fabricated by mechanical alloying and spark plasma sintering[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(A03): 1995-1999 |
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| Authors: | HE Qing JIA Cheng-chang MENG Jie |
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| Abstract: | |
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| Keywords: | iron aluminides mechanical alloying spark plasma sintering bend strength microstructure |
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