| Effect of Precipitating Phases on Tensile Strength and Microstructural Stability of a Spray-Deposited Al-Si-Fe-Mn-Cu-Mg Alloy |
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| 引用本文： | Feng WANG,Yuansheng JIN,Dunyuan HU and Jishan ZHANG1)State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China2)State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China. Effect of Precipitating Phases on Tensile Strength and Microstructural Stability of a Spray-Deposited Al-Si-Fe-Mn-Cu-Mg Alloy[J]. 材料科学技术学报, 2004, 20(1): 78-80 |
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| 作者姓名： | Feng WANG Yuansheng JIN Dunyuan HU and Jishan ZHANG1)State Key Laboratory of Tribology Tsinghua University Beijing 100084 China2)State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China |
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| 作者单位： | Feng WANG，Yuansheng JIN，Dunyuan HU and Jishan ZHANG1)State Key Laboratory of Tribology，Tsinghua University，Beijing 100084，China2)State Key Laboratory for Advanced Metals and Materials，University of Science and Technology Beijing，Beijing 100083，China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | Spray deposition is a novel process which is used to manufacture rapidly solidified bulk and near-net-shape preforms. In this study, AI-20Si-5Fe-3Mn-3Cu-1Mg alloy was synthesized by spray deposition technique. The aging process of the alloy was investigated by differential scanning calorimetry (DSC) analysis and transmission electron microscopy (TEM). The results show that two kinds of phases, i.e. S(Al2CuMg) and σ(Al5Cu6Mg2), precipitate from matrix and improve the tensile strength of the alloy efficiently at both the ambient and elevated temperatures (300℃). In addition, the σ-Al5Cu6Mg2 is a relatively stable phase which improves microstructural stability of the alloy.
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Effect of Precipitating Phases on Tensile Strength and Microstructural Stability of a Spray-Deposited Al-Si-Fe-Mn-Cu-Mg Alloy |
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| Feng WANG,Yuansheng JIN,Dunyuan HU,Jishan ZHANG. Effect of Precipitating Phases on Tensile Strength and Microstructural Stability of a Spray-Deposited Al-Si-Fe-Mn-Cu-Mg Alloy[J]. Journal of Materials Science & Technology, 2004, 20(1): 78-80 |
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| Authors: | Feng WANG Yuansheng JIN Dunyuan HU Jishan ZHANG |
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| Affiliation: | State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China |
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| Abstract: | Spray deposition is a novel process which is used to manufacture rapidly solidified bulk and near-net-shape preforms. In this study, Al-20Si-5Fe-3Mn-3Cu-1Mg alloy was synthesized by spray deposition technique. The aging process of the alloy was investigated by differential scanning calorimetry (DSC) analysis and transmission electron microscopy (TEM). The results show that two kinds of phases, i.e. S(Al2CuMg) and σ(Al5Cu6Mg2), precipitate from matrix and improve the tensile strength of the alloy efficiently at both the ambient and elevated temperatures (300℃). In addition, the σ-Al5Cu6Mg2 is a relatively stable phase which improves microstructural stability of the alloy. |
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| Keywords: | Spray deposition Precipitate Tensile strength Microstructural stability |
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