| Evolution of microstructures in Al-Mn-Mg alloys during homogenization |
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| 作者姓名： | 孙东立 姜石峰 |
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| 作者单位： | 1.School of Materials Science and Technology，Harbin Institute of Technology，Harbin 150001，P.R.China;2.Korea Institute of Machinery and Materials，Changwon 641 010，Korea |
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| 摘 要： | 0 ＩＮＴＲＯＤＵＣＴＩＯＮＡｌ Ｍｎｓｅｒｉｅｓａｌｌｏｙｓａｓｃｏｍｍｅｒｃｉａｌｏｎｅｓｈａｖｅｌｏｎｇｈｉｓ ｔｏｒｙ .Ｔｈｅｆｉｒｓｔｃｏｍｍｅｒｃｉａｌ 3ＸＸＸａｌｌｏｙｗａｓｄｅｖｅｌｏｐｅｄｉｎ190 6ａｎｄｔｈｅｍａｉｎａｌｌｏｙｉｎｇｅｌｅｍｅｎｔｓｏｆｔｈｉｓａｌｌｏｙａｒｅ 1.2 5ｗ (Ｂ) %Ｍｎａｎｄ 0 .13ｗ (Ｂ) %Ｃｕ .Ｉｎ 192 9,30 0 4ａｌｌｏｙｗｉｔｈ 1ｗ (Ｂ) %Ｍｇｅｌｅｍｅｎｔｃａｍｅｉｎｔｏｉｎｄｕｓｔｒｉａｌｕｓｅ .Ｏｖｅｒｐａｓｔｔｗｅｎｔｙ ｙｅａｒｓ ,3ＸＸＸｓｅｒ…
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Evolution of microstructures in Al-Mn-Mg alloys during homogenization |
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| SUN Dong li ,KANG Suk bong.Evolution of microstructures in Al-Mn-Mg alloys during homogenization[J].Journal of Harbin Institute of Technology,2002,9(1). |
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| Authors: | SUN Dong li KANG Suk bong |
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| Affiliation: | 1. School of Materials Science and Technology, Harbin Institute of Technology, Harbin 150001, P.R.China
2. Korea Institute of Machinery and Materials, Changwon 641-010, Korea |
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| Abstract: | The microstructures of five Al-Mn-Mg alloys with different Mn, Si and Fe contents were investigated in as-cast and homogenized states. The influences of chemical composition and homogenizing process on the microstructure were studied. The results show that the morphology of the primary second particles are not influenced by the variation of Mn, Si and Fe level, and the amount of the primary α phase, the α precipitates and Mg2Si phase are enhanced by the addition of Si; The average size of primary intermetallic particles reduces and the volume fraction of them decreases slightly with the increase in homogenization temperature and time; However, the volume fraction of primary secondary particles is increased by adding more Mn, Si and Fe elements in alloys. Moreover, a new MgSiCu-rich eutectic in the as-cast ingot has been found. |
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| Keywords: | Al Mn Mg alloy homogenization microstructure |
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