| Effects of magnesium content on phase constituents of Al-Mg-Si-Cu alloys |
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| 作者姓名： | 刘宏 赵刚 刘春明 左良 |
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| 作者单位： | School of Mechanical Engineering Shandong Institute of Light Industry Ji’nan 250100 China，School of Materials and Metallurgy Northeastern University Shenyang 110004 China，School of Materials and Metallurgy Northeastern University Shenyang 110004 China，School of Materials and Metallurgy Northeastern University Shenyang 110004 China |
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| 基金项目： | Project（2002AA331050） supported by Hi-tech Research and Development Program of China; project（0208） supported by Science and Technology Research of Ministry of Education of China. |
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| 摘 要： | 1 Introduction The heat-treatable Al-Mg-Si-Cu(6000 series) alloys used as automotive body sheet materials are being brought to practical use more and more in North American and Europe, and becoming optimal materials caused by mass reduction of automotive …
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| 关 键 词： | Al1.9CuMg4.1Si3.3 Al4（MnFe）3Si2 Mg2Si 铝合金 镁 |
Effects of magnesium content on phase constituents of Al-Mg-Si-Cu alloys |
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| LIU Hong,ZHAO Gang,LIU Chun-ming,ZUO Liang.Effects of magnesium content on phase constituents of Al-Mg-Si-Cu alloys[J].Transactions of Nonferrous Metals Society of China,2006,16(2):376-381. |
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| Authors: | LIU Hong ZHAO Gang LIU Chun-ming ZUO Liang |
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| Affiliation: | 1. School of Mechanical Engineering, Shandong Institute of Light Industry, Ji''nan 250100, China;2. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;1. Hydro Aluminium Rolled Products, Research and Development Bonn, D-53014, Bonn, Germany;2. SINTEF Industry, N-7465, Trondheim, Norway;3. Materials Research Laboratory, Kobe Steel, Ltd., Kobe, 651-2271, Japan;4. Hydro Aluminium, Research and Technology Development, Sunndalsøra, Norway;1. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China;2. School of Materials Science and Engineering, Central South University, Changsha 410083, China;3. Jiangsu Key Laboratory of Materials Surface Technology, Changzhou University, Changzhou 213164, China;1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;2. Brunel Centre for Advanced Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, UK;1. JWRI, Osaka University, 11-1 Mihogaoka, Ibaragi, Osaka 567-0047, Japan;2. Hokkaido University, Niow5, Kita-ku, Sapporo, Hokkaido 060-0810, Japan |
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| Abstract: | By means of scanning electron microscopy(SEM), energy dispersive spectrum(EDS), X-ray diffractometry(XRD) and metallographic analysis, the effects of variation of magnesium content on phase constituents of Al-Mg-Si-Cu alloys were investigated. The results indicate that the constituents formed during casting alloys are main Al1.9CuMg4.1Si3.3,Al4(MnFe)3Si2 and Mg2Si, while pure Si is only present in the alloy containing lower magnesium content. Increasing Mg content leads to increasing the amount of Mg2Si, but decreasing the amount of Al1.9CuMg4.1Si3.3 and Al4(MnFe)3Si2. During the following homogenization process, Al1.9CuMg4.1Si3.3 is completely dissolved, Al4(MnFe)3Si2 and pure Si remain unchanged. After rolling and final heat treatment, the constituents in the alloys change no longer. |
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| Keywords: | Al-Mg-Si-Cu alloys phase constituent magnesium content Al1 9CuMg4 1Si3 3 Al4(MnFe)3Si2 Mg2Si |
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