Precipitation Behavior of the Spray-deposited Al-Si-Fe-Mn-Cu-Mg Alloy

WANG Feng; YANG Bin; CUI Hua; DUAN Xianjin; XIONG Boqing; ZHANG Jishan

doi:10.13374/j.issn1001-053x.2001.03.033

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WANG Feng, YANG Bin, CUI Hua, DUAN Xianjin, XIONG Boqing, ZHANG Jishan. Precipitation Behavior of the Spray-deposited Al-Si-Fe-Mn-Cu-Mg Alloy[J]. Chinese Journal of Engineering, 2001, 23(3): 216-219. doi: 10.13374/j.issn1001-053x.2001.03.033

Citation:

WANG Feng, YANG Bin, CUI Hua, DUAN Xianjin, XIONG Boqing, ZHANG Jishan. Precipitation Behavior of the Spray-deposited Al-Si-Fe-Mn-Cu-Mg Alloy[J]. Chinese Journal of Engineering, 2001, 23(3): 216-219. doi: 10.13374/j.issn1001-053x.2001.03.033

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Precipitation Behavior of the Spray-deposited Al-Si-Fe-Mn-Cu-Mg Alloy

doi: 10.13374/j.issn1001-053x.2001.03.033

1. State Key Laboratory for Advanced Metals and Materials, UST Beijing, Beijing 100083, China;
2. Composite Materials Center, Geneals Research Institute for Non-ferrous Metals, Beijing 100088, China

Received Date: 2000-12-25

Abstract

Abstract

The aging process of the spray-deposited Al-20Si-5Fe-3Mn-3Cu-1Mg alloy was investigated by DSC analysis, microhardness measurement, TEM and HREM observations. The results show that two kinds of precipitates, 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℃).
- spray deposition,
- age treatment,
- precipitation hardening,
- Al-Si system alloy