Deformation Twinning in Hexagonal Close-Packed Single Crystals under Uniaxial Compression

Abstract:

In this paper, the uniaxial compression of Mg, Ti, Zr and Co single crystals along the direction is performed by molecular dynamics (MD) to investigate the elastic-to-plastic transition in these hexagonal close-packed (hcp) metals. Two deformation twinning modes are observed in these simulations, including the twinning in Ti, Zr and Co and the [0001] twinning in Mg. The underlying atomistic mechanisms of these twinning modes are analyzed in detail.

• Periodical: Materials Science Forum (Volume 850)
• Pages: 379-385
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.850.379
• Online since: March 2016
• Authors: Kai Xiong, Yi Yang Zhang, Jian Feng Gu*
• Keywords: Deformation Twinning, Hexagonal Close-Packed Crystal, Molecular Dynamics, Uniaxial Compression

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