4.7 Article

Effect of c/a axial ratio on Schmid factors in hexagonal close-packed metals

Journal

SCRIPTA MATERIALIA
Volume 68, Issue 7, Pages 530-533

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2012.12.006

Keywords

Slip; Twinning; Plastic deformation; Texture

Funding

  1. Natural Science Foundation of China [51271086]
  2. Special Fund for the Author of Excellent PhD Thesis in China [201148]
  3. National Key Technologies RD Program [2011BAE22B03]
  4. Doctoral Fund of Ministry of Education of China [20120061110031]

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Schmid factors (m) for typical slip modes (basal (a), prismatic (a), pyramidal (a) and (c + a) slips) and twinning patterns ({10 (1) over bar2} and {10 (1) over bar1} twins) were systematically calculated in hexagonal close-packed Cd, Zn, Mg, Zr, Ti and Be. A monotonic effect on m-values was presented for pyramidal (a) and (c + a) slips, and {10 (1) over bar2} and {10 (1) over bar1} twinning patterns with decreasing c/a ratio. The results calculated herein were used to characterize deformation behaviors and provide essential data for anisotropic feature analysis. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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