Fractal Dislocation Patterning During Plastic Deformation

作者: Peter Hähner , Karlheinz Bay , Michael Zaiser

DOI: 10.1103/PHYSREVLETT.81.2470

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摘要: During the later stages of plastic deformation, strain hardening face-centered cubic metals goes along with formation cellular dislocation patterns appearing on various scales. The paper presents an analysis fractal geometry these structures. A theoretical model is presented according to which cell associated a noise-induced structural transition far from equilibrium. observed dimensions are related stochastic process glide, and implications for quantitative metallography discussed.

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