Yield stress of fine grained materials
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R.A. Masumura; P.M. Hazzledine; C.S. Pande
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Article
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1998
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Elsevier Science
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English
โ 300 KB
AbstractรA model is proposed for the yield stress of ultra-ยฎne grained materials based upon Coble creep. Using Coble creep with a threshold stress for ยฎner grains and conventional HallยฑPetch strengthening for larger grains, an analytical relation is derived for the yield stress as a function of grai