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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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. ]$ T) F3 l5 ~1 x- Z; {& MEffects 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*6 x! V" r2 z! D% v; t5 k
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea
$ ^; x9 ^% p$ c% S7 P7 [*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea
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7 g. l" d: T, G: H3 T1 Z% ~Abstract: j3 |. r: D1 Z8 d+ y. M0 x
' o( Y/ V) @8 R/ e cThe 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.5 k/ _! x. H6 {! q
, k. B/ V9 g+ `8 P7 ]- c! gKey words : Casting, Aluminum alloy, Tensile Properties, Iron content.5 ]: n0 f3 \9 {' F) t
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9 w/ e5 G7 `$ A9 M[ 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
