Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites

Abstract The present study demonstrates that Ti-based metallic glass matrix composites (MGMCs) with a normal composition of Ti43Zr32Ni6Ta5Be14 containing ductile dendrites dispersed in the glass matrix has been developed, and deformation mechanisms about the tensile property have been investigated b...

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Autores principales:	J. Fan, J. W. Qiao, Z. H. Wang, W. Rao, G. Z. Kang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/041584ad89af49c89c5f7ba3064ec36d
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spelling	oai:doaj.org-article:041584ad89af49c89c5f7ba3064ec36d2021-12-02T12:32:51ZTwinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites10.1038/s41598-017-02100-92045-2322https://doaj.org/article/041584ad89af49c89c5f7ba3064ec36d2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02100-9https://doaj.org/toc/2045-2322Abstract The present study demonstrates that Ti-based metallic glass matrix composites (MGMCs) with a normal composition of Ti43Zr32Ni6Ta5Be14 containing ductile dendrites dispersed in the glass matrix has been developed, and deformation mechanisms about the tensile property have been investigated by focusing on twinning-induced plasticity (TWIP) effect. The Ti-based MGMC has excellent tensile properties and pronounced tensile work-hardening capacity, with a yield strength of 1100 MPa and homogeneous elongation of 4%. The distinguished strain hardening is ascribed to the formation of deformation twinning within the dendrites. Twinning generated in the dendrites works as an obstacle for the rapid propagation of shear bands, and then, the localized necking is avoided, which ensures the ductility of such kinds of composites. Besides, a finite-element model (FEM) has been established to explain the TWIP effect which brings out a work-hardening behavior in the present MGMC instead of a localized strain concentration. According to the plasticity theory of traditional crystal materials and some new alloys, TWIP effect is mainly controlled by stacking fault energy (SFE), which has been analyzed intensively in the present MGMC.J. FanJ. W. QiaoZ. H. WangW. RaoG. Z. KangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q J. Fan J. W. Qiao Z. H. Wang W. Rao G. Z. Kang Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
description	Abstract The present study demonstrates that Ti-based metallic glass matrix composites (MGMCs) with a normal composition of Ti43Zr32Ni6Ta5Be14 containing ductile dendrites dispersed in the glass matrix has been developed, and deformation mechanisms about the tensile property have been investigated by focusing on twinning-induced plasticity (TWIP) effect. The Ti-based MGMC has excellent tensile properties and pronounced tensile work-hardening capacity, with a yield strength of 1100 MPa and homogeneous elongation of 4%. The distinguished strain hardening is ascribed to the formation of deformation twinning within the dendrites. Twinning generated in the dendrites works as an obstacle for the rapid propagation of shear bands, and then, the localized necking is avoided, which ensures the ductility of such kinds of composites. Besides, a finite-element model (FEM) has been established to explain the TWIP effect which brings out a work-hardening behavior in the present MGMC instead of a localized strain concentration. According to the plasticity theory of traditional crystal materials and some new alloys, TWIP effect is mainly controlled by stacking fault energy (SFE), which has been analyzed intensively in the present MGMC.
format	article
author	J. Fan J. W. Qiao Z. H. Wang W. Rao G. Z. Kang
author_facet	J. Fan J. W. Qiao Z. H. Wang W. Rao G. Z. Kang
author_sort	J. Fan
title	Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
title_short	Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
title_full	Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
title_fullStr	Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
title_full_unstemmed	Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites
title_sort	twinning-induced plasticity (twip) and work hardening in ti-based metallic glass matrix composites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/041584ad89af49c89c5f7ba3064ec36d
work_keys_str_mv	AT jfan twinninginducedplasticitytwipandworkhardeningintibasedmetallicglassmatrixcomposites AT jwqiao twinninginducedplasticitytwipandworkhardeningintibasedmetallicglassmatrixcomposites AT zhwang twinninginducedplasticitytwipandworkhardeningintibasedmetallicglassmatrixcomposites AT wrao twinninginducedplasticitytwipandworkhardeningintibasedmetallicglassmatrixcomposites AT gzkang twinninginducedplasticitytwipandworkhardeningintibasedmetallicglassmatrixcomposites
_version_	1718393898434297856

Twinning-induced plasticity (TWIP) and work hardening in Ti-based metallic glass matrix composites

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