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镁合金研究发展到什么地步啦，怎么连霍尔派奇公式都能发文章了…… 已有7人参与
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http://www.sciencedirect.com/sci ... i/S1359646211005057 Influence of grain size and texture on Hall-Petch relationship for a magnesium alloy W. Yuana, S.K. Panigrahia, J.-Q. Sua and R.S. Mishra, a, a Center for Friction Stir Processing, Department of Materials Science & Engineering, Missouri University of Science and Technology, Rolla MO 65409, USA Received 8 July 2011; revised 29 August 2011; accepted 30 August 2011. Available online 1 September 2011. Abstract Friction stir processing was applied to a magnesium alloy to generate various grain sizes with same intense basal texture. Subsequent tensile deformation along two orthogonal directions by easy activation or inhibition of basal slip follows Hall-Petch relationship between yield stress and grain size in both directions. The Hall-Petch parameters are texture dependent. Easy activation of basal slip introduces lower values while inhibition of basal slip leads to higher values. The Hall-Petch parameters are interpreted by texture and microstructural factors. Keywords: Texture; Hall-Petch relationship; magnesium alloy; friction stir processing 这都可以？？？ |
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4楼2011-09-05 14:16:41