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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% \3 S" [1 I& P% |; {& b8 r3 u3 F6 I
9 b$ k, ~# l# V8 Q" T6 rEffects of Mn, Cr, and Sr Additions on the Microstructure and Tensile Properties of Al-7Si-0.4Mg-1Fe Casting Alloy
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+ v& k. c7 z) q, u2 {+ }* @$ g, s+ u' M/ jJeong-Min Kim†, Joon-Sik Park, Ha-Young Kim, Jae-Ik Cho*, and Chang-Yeol Jung* b# W9 F# v( d M! I& [: d
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea9 {+ s- W$ i8 j. r. E' ^
*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea4 W) _" ]+ n# H# `2 g* c
/ v1 C) Y' J7 N1 N, n' VAbstract
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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.+ w# C1 a6 A/ a" U7 I, y" [
" \4 W0 s9 h: n$ p' F2 K k; F! UKey words : Casting, Aluminum alloy, Tensile Properties, Iron content.
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2 p" G% d# V% k[ 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
