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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
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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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2 T' W4 f7 B# W6 u3 G( IJeong-Min Kim†, Joon-Sik Park, Ha-Young Kim, Jae-Ik Cho*, and Chang-Yeol Jung*; L D' p9 C& x6 ?' H0 n
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea& {8 I8 E4 B/ l7 W
*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea/ N7 m$ R) B5 ]$ W, _
& d" o7 [/ E7 H# z$ Y5 V O0 |Abstract9 ?- g2 i, n a; J0 H
0 K# q7 ~) X1 d- u: HThe 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.
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K8 z. r7 W6 S& Q, Z* e* aKey words : Casting, Aluminum alloy, Tensile Properties, Iron content.' Q3 N& F, S% j: \5 z c
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. n1 z: U ^0 x[ 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
