A semi-phenomenological constitutive model for hcp materials as exemplified by alpha titanium

Dong-Hyun Ahn; Hyoung Seop Kim; Yuri Estrin

doi:10.1016/j.scriptamat.2012.03.037

A semi-phenomenological constitutive model for hcp materials as exemplified by alpha titanium

Dong-Hyun Ahn, Hyoung Seop Kim, Yuri Estrin

Materials Science & Engineering

Research output: Contribution to journal › Article › Research › peer-review

33 Citations (Scopus)

Abstract

A constitutive model based on the mechanisms of dislocation glide and deformation twinning for hexagonal close-packed (hcp) metals is proposed. To account for the limited availability of slip systems in an hcp metal, an incompatibility stress, which evolves with strain, is included. Numerical simulations compared with experiments suggest that the model can successfully reproduce the
strain hardening of α-Ti. It is believed that the model has a more general applicability and can be used for other hcp metals as well. 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	121-124
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2012.03.037
Publication status	Published - 2012

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10.1016/j.scriptamat.2012.03.037

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abstract = "A constitutive model based on the mechanisms of dislocation glide and deformation twinning for hexagonal close-packed (hcp) metals is proposed. To account for the limited availability of slip systems in an hcp metal, an incompatibility stress, which evolves with strain, is included. Numerical simulations compared with experiments suggest that the model can successfully reproduce the strain hardening of α-Ti. It is believed that the model has a more general applicability and can be used for other hcp metals as well. 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. ",

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AB - A constitutive model based on the mechanisms of dislocation glide and deformation twinning for hexagonal close-packed (hcp) metals is proposed. To account for the limited availability of slip systems in an hcp metal, an incompatibility stress, which evolves with strain, is included. Numerical simulations compared with experiments suggest that the model can successfully reproduce the strain hardening of α-Ti. It is believed that the model has a more general applicability and can be used for other hcp metals as well. 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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A semi-phenomenological constitutive model for hcp materials as exemplified by alpha titanium

Abstract

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Corrigendum to: "A semi-phenomenological constitutive model for hcp materials as exemplified by alpha titanium" [Scripta Materialia 67 (2012) 121-124]

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