|
|
马上注册，结识高手，享用更多资源，轻松玩转三维网社区。
您需要 登录 才可以下载或查看，没有帐号？注册
x
是韩文的，哪位懂的话，能不能翻译出来，内容应该不错
- M+ n( @- ]" c* l& Y' E( q1 ?
3 M4 v3 ~5 r. JEffects of Mn, Cr, and Sr Additions on the Microstructure and Tensile Properties of Al-7Si-0.4Mg-1Fe Casting Alloy
2 k5 t: E2 M$ z3 g6 P& N/ t( f D. T* R& q# Y
Jeong-Min Kim†, Joon-Sik Park, Ha-Young Kim, Jae-Ik Cho*, and Chang-Yeol Jung*8 M4 r7 p7 X$ L6 S
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea9 B) z: h7 q: C" p, \4 ]
*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea
/ n& {2 q* g. n3 e; A$ v5 }' `9 K! B4 Z7 P/ N+ c
Abstract. ?5 n& _9 @& t
/ ?0 q/ I# v6 f6 k* O2 O7 M
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.0 J b$ g+ Z! B( F- G
- [1 M5 T, U: A) i2 O: |4 x" AKey words : Casting, Aluminum alloy, Tensile Properties, Iron content.4 L: T& ~, }5 ^: F$ a" |& n( ?
) @3 k. C* H$ o
/ b6 s9 O3 u2 d" C0 S- d8 t
3 i, {% O, F* t& u8 |& c
6 w K5 v* B4 R Y8 @2 u. p% Y2 S8 w& S5 Y8 h v+ t
[ 本帖最后由 三维观察员 于 2009-9-10 12:53 编辑 ] |
|
发表于 2009-9-10 12:48:48
