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金属学报  2006, Vol. 42 Issue (2): 163-166     
  论文 本期目录 | 过刊浏览 |
半固态A356铝合金的稳态流变性能
张艳菊;毛卫民;赵振铎;刘政
北京科技大学材料科学与工程学院
Rheological Behavior of Semi--solid A356 Aluminum Alloy at Steady State
Zhang Yanju
北京科技大学材料科学与工程学院
引用本文:

张艳菊; 毛卫民; 赵振铎; 刘政 . 半固态A356铝合金的稳态流变性能[J]. 金属学报, 2006, 42(2): 163-166 .
, , , . Rheological Behavior of Semi--solid A356 Aluminum Alloy at Steady State[J]. Acta Metall Sin, 2006, 42(2): 163-166 .

全文: PDF(333 KB)  
摘要: 采用Couette型同轴双筒流变仪对半固态A356铝合金的等温稳态表观粘度进行了测试. 结果表明: 半固态A356合金的稳态表观粘度(ηa)随着固相分数(fs)的增加而增加, 但随剪切速率(γ)的增大而减小, 当fs达到某一临界值之后, ηa迅速增加.可用方程ηa=2.79exp(6.27 fs)γ-0.7描述fs,γ对ηa的影响.
关键词 A356铝合金表观粘度固相分数    
Abstract:The rheological behavior of the semi-solid slurry of A356 aluminum alloy has been studied through a Couette-type viscometer. The experimental results show that the apparent viscosity of semi-solid A356 alloy increases with the fraction solid increasing, but decreases with the shearing rate increasing in the steady-state. When the solid fraction reaches a critical value, the apparent viscosities increase rapidly. An empirical equation that shows the effect of fraction solid and shearing rate on the apparent viscosity of semi-solid A356 alloy is built as the following, =13.61exp(6.09 ) -1.01.
Key wordssemi-solid    A356 aluminum alloy    apparent viscosity    fraction solid    shearing rate
收稿日期: 2005-05-11     
ZTFLH:  TG146  
[1] Flemings M C. Metall Trans, 1991; A22: 957
[2] Kirkwood D H. Int Mater Rev, 1994; 39: 173
[3] Fan Z. Int Mater Rev, 1994; 47: 49
[4] Spencer D B, Mehrabian R, Flemings M C. Metall Trans, 1972; 3: 1925
[5] Joly P A, Mehrabian R. J Mater Sci, 1976; 11: 1393
[6] Kattamis T Z, Piccone T J. Mater Sci Eng, 1991; A131: 265
[7] Zhen Z S, Mao W M, Yan S J, Zhao A M, Cui C L, Zhong X Y. Acta Metall Sin (Engl Lett), 2002; 15: 505
[8] Quaak C J, Horsten M G, Kool W H. Mater Sci Eng, 1994; A183: 247
[9] Diewwanit I, Flemings M C. In: Kirkwood D H, Kapranos P, eds., Proc 4th Int Conf on Semi-Solid Processing of Alloys and Composites, UK: Department of Engineering
??Materials, University of Sheffield, 1996: 30
[10] Hirami M, Takebayashi K, Yoshikawa Y, Yamaguchi R. ISIJ Int, 1993; 33: 405
[11] Hirami M, Takebayashi K, Yoshikawa Y. ISIJ Int, 1993; 33: 1182
[12] Wang N, Shu G J, Yang H G. Mater Trans JIM, 1990; 31: 715
[13] Yurko J A, de Figueredo A M, Flemings M C. In: Chiarmetta G L, Rosso M eds., Proc 6th Int Conf on Semi—Solid Processing of Alloys and Composites, Turin, Italy: Materials Science and Chemical Engineering Department, Politecnico DI Torino, 2000: 681
[14] Tonmukayakul N, Nguyen Q D, Figueredo A M, Pan Q Y. In: Tsutsui Y, Kiuchi M, Ichikawa K, eds., Proc 7th Int Conf on Semi-Solid Processing of Alloys and Composites, Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology, Japan Society for Technology of Plasticity, 2002: 437
[15] Chen J Y, Fan Z. Mater Sci Technol, 2002; 18: 237
[16] Zhen Z S, Mao W M, Yan S J, Cui C L, Zhao A M, Zhong X Y. Acta Metal Sin, 2003; 39: 71(甄子胜,毛卫民,闫时建,崔成林,赵爱民,钟雪友.金属学报,2003;39:71)
[17] Yang X J. PhD Thesis. Shanghai University, 1999(杨湘杰.上海大学博士学位论文,1999)
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