|
|
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
4 U/ Y* G8 |. C0 i+ B3 q; ]5 V7 s& ]: q1 I, H7 p
Effects of Mn, Cr, and Sr Additions on the Microstructure and Tensile Properties of Al-7Si-0.4Mg-1Fe Casting Alloy$ R6 \$ \. r3 \+ C6 N f
' e1 B# F: \( m2 g0 k1 l0 N
Jeong-Min Kim†, Joon-Sik Park, Ha-Young Kim, Jae-Ik Cho*, and Chang-Yeol Jung*. _( S5 g, I/ |6 v; }! I9 S
Division of Advanced Materials Engineering, Hanbat National University, Daejeon 305-719, Korea( a- h t: I$ ~0 K8 h
*Kwangju R&D Center, Korea Institute of Industrial Technology, Kwangju 500-480, Korea0 O0 [- ~, ~5 x* F
- `4 o, A3 C. Q" j8 v3 D& V! `+ x% UAbstract2 @9 B$ ~, h/ W# I3 Z9 O+ f
3 Z; u( G0 e. R/ T0 ?3 z6 T/ W
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.# n: w, e: ` D) L% B9 a
& M% ^+ f ~& I! q8 p$ o% Z% O2 E
Key words : Casting, Aluminum alloy, Tensile Properties, Iron content.! |6 x! s! R* P1 G. N, s7 P/ i
0 K: T* V ?3 K& ^/ Q( w0 z9 l' h" k. W
. J j* _" a( l8 {) i
, _8 w6 S/ |, _! t O
$ o+ `4 X- ?. ?: I) G; d
1 h% c* @6 {* j$ o
[ 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
