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是韩文的，哪位懂的话，能不能翻译出来，内容应该不错/ X, d- ?9 N2 y$ U& @( _
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Effects of Mn, Cr, and Sr Additions on the Microstructure and Tensile Properties of Al-7Si-0.4Mg-1Fe Casting Alloy
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Jeong-Min Kim†, Joon-Sik Park, Ha-Young Kim, Jae-Ik Cho*, and Chang-Yeol Jung** G- E6 A% A/ u, y+ ~
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea
- _) J+ r( A( ]. u) P) ?* A& ?# P*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea& @$ L; y& A1 {! f+ o: H
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The microstructure of Al-7Si-0.4Mg-1Fe alloy mainly consists of aluminum dendrites, Al-Si eutectics, and Al5FeSi needles.When Mn was added to the alloy, the substantial amount of Al5FeSi phase was changed into Al(Mn,Fe)Si, however the needle-like morphology was almost unchanged. Combined additions of Cr or Sr with Mn to the base alloy resulted in rod-like Al(Mn, Fe,Si)Si phase. The tensile properties of as-cast alloys were enhanced by the Mn addition, especially when it was added with Sr. The tensile properties after T6 heat treatment was a little improved with 0.7%Mn addition, but Cr or Sr additions with Mn didn't show any positive effect on the properties of heat-treated alloys.9 F& ^; A0 f; `: V
, G3 ?* n; B& H) |* Z* }, IKey words : Casting, Aluminum alloy, Tensile Properties, Iron content. m! b/ B* n9 M# X3 F3 B, D2 Z
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: n, I; g6 ?8 U3 s[ 本帖最后由 三维观察员 于 2009-9-10 12:53 编辑 ] |
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发表于 2009-9-10 12:48:48
