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Alloy design by tailoring phase stability in commercial Ti alloys

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Alloy design by tailoring phase stability in commercial Ti alloys. / Zhao, G.-H.; Liang, X.Z.; Xu, X. et al.

In: Materials Science and Engineering: A, Vol. 815, 141229, 20.05.2021.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Zhao, G-H, Liang, XZ, Xu, X, Gamża, MB, Mao, H, Louzguine-Luzgin, DV & Rivera-Díaz-del-Castillo, PEJ 2021, 'Alloy design by tailoring phase stability in commercial Ti alloys', Materials Science and Engineering: A, vol. 815, 141229. https://doi.org/10.1016/j.msea.2021.141229

APA

Zhao, G-H., Liang, X. Z., Xu, X., Gamża, M. B., Mao, H., Louzguine-Luzgin, D. V., & Rivera-Díaz-del-Castillo, P. E. J. (2021). Alloy design by tailoring phase stability in commercial Ti alloys. Materials Science and Engineering: A, 815, [141229]. https://doi.org/10.1016/j.msea.2021.141229

Vancouver

Zhao G-H, Liang XZ, Xu X, Gamża MB, Mao H, Louzguine-Luzgin DV et al. Alloy design by tailoring phase stability in commercial Ti alloys. Materials Science and Engineering: A. 2021 May 20;815:141229. Epub 2021 Apr 20. doi: 10.1016/j.msea.2021.141229

Author

Zhao, G.-H. ; Liang, X.Z. ; Xu, X. et al. / Alloy design by tailoring phase stability in commercial Ti alloys. In: Materials Science and Engineering: A. 2021 ; Vol. 815.

Bibtex

@article{adf5523c629c4bc38d426ffe9dce46f9,
title = "Alloy design by tailoring phase stability in commercial Ti alloys",
abstract = "The mechanical characteristics and the operative deformation mechanisms of a metallic alloy can be optimised by explicitly controlling phase stability. Here an integrated thermoelastic and pseudoelastic model is presented to evaluate the β stability in Ti alloys. The energy landscape of β→α′/α″ martensitic transformation was expressed in terms of the dilatational and transformational strain energy, the Gibbs free energy change, the external mechanical work as well as the internal frictional resistance. To test the model, new alloys were developed by tailoring two base alloys, Ti–6Al–4V and Ti–6Al–7Nb, with the addition of β-stabilising element Mo. The alloys exhibited versatile mechanical behaviours with enhanced plasticity. Martensitic nucleation and growth was fundamentally dominated by the competition between elastic strain energy and chemical driving force, where the latter term tends to lower the transformational energy barrier. The model incorporates thermodynamics and micromechanics to quantitatively investigate the threshold energy for operating transformation-induced plasticity and further guides alloy design. {\textcopyright} 2021 The Author(s)",
keywords = "Alloy design, Phase transformation, Physical modelling, Plasticity, Ti alloys, Free energy, Friction, Gibbs free energy, Martensitic transformations, Mechanisms, Phase stability, Strain energy, Thermodynamic stability, Titanium alloys, Alloy designs, Deformation mechanism, Energy, Martensitics, Mechanical characteristics, Metallic alloys, Phases transformation, Physical model, Thermoelastic modeling",
author = "G.-H. Zhao and X.Z. Liang and X. Xu and M.B. Gam{\.z}a and H. Mao and D.V. Louzguine-Luzgin and P.E.J. Rivera-D{\'i}az-del-Castillo",
year = "2021",
month = may,
day = "20",
doi = "10.1016/j.msea.2021.141229",
language = "English",
volume = "815",
journal = "Materials Science and Engineering: A",
issn = "0921-5093",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Alloy design by tailoring phase stability in commercial Ti alloys

AU - Zhao, G.-H.

AU - Liang, X.Z.

AU - Xu, X.

AU - Gamża, M.B.

AU - Mao, H.

AU - Louzguine-Luzgin, D.V.

AU - Rivera-Díaz-del-Castillo, P.E.J.

PY - 2021/5/20

Y1 - 2021/5/20

N2 - The mechanical characteristics and the operative deformation mechanisms of a metallic alloy can be optimised by explicitly controlling phase stability. Here an integrated thermoelastic and pseudoelastic model is presented to evaluate the β stability in Ti alloys. The energy landscape of β→α′/α″ martensitic transformation was expressed in terms of the dilatational and transformational strain energy, the Gibbs free energy change, the external mechanical work as well as the internal frictional resistance. To test the model, new alloys were developed by tailoring two base alloys, Ti–6Al–4V and Ti–6Al–7Nb, with the addition of β-stabilising element Mo. The alloys exhibited versatile mechanical behaviours with enhanced plasticity. Martensitic nucleation and growth was fundamentally dominated by the competition between elastic strain energy and chemical driving force, where the latter term tends to lower the transformational energy barrier. The model incorporates thermodynamics and micromechanics to quantitatively investigate the threshold energy for operating transformation-induced plasticity and further guides alloy design. © 2021 The Author(s)

AB - The mechanical characteristics and the operative deformation mechanisms of a metallic alloy can be optimised by explicitly controlling phase stability. Here an integrated thermoelastic and pseudoelastic model is presented to evaluate the β stability in Ti alloys. The energy landscape of β→α′/α″ martensitic transformation was expressed in terms of the dilatational and transformational strain energy, the Gibbs free energy change, the external mechanical work as well as the internal frictional resistance. To test the model, new alloys were developed by tailoring two base alloys, Ti–6Al–4V and Ti–6Al–7Nb, with the addition of β-stabilising element Mo. The alloys exhibited versatile mechanical behaviours with enhanced plasticity. Martensitic nucleation and growth was fundamentally dominated by the competition between elastic strain energy and chemical driving force, where the latter term tends to lower the transformational energy barrier. The model incorporates thermodynamics and micromechanics to quantitatively investigate the threshold energy for operating transformation-induced plasticity and further guides alloy design. © 2021 The Author(s)

KW - Alloy design

KW - Phase transformation

KW - Physical modelling

KW - Plasticity

KW - Ti alloys

KW - Free energy

KW - Friction

KW - Gibbs free energy

KW - Martensitic transformations

KW - Mechanisms

KW - Phase stability

KW - Strain energy

KW - Thermodynamic stability

KW - Titanium alloys

KW - Alloy designs

KW - Deformation mechanism

KW - Energy

KW - Martensitics

KW - Mechanical characteristics

KW - Metallic alloys

KW - Phases transformation

KW - Physical model

KW - Thermoelastic modeling

U2 - 10.1016/j.msea.2021.141229

DO - 10.1016/j.msea.2021.141229

M3 - Journal article

VL - 815

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

SN - 0921-5093

M1 - 141229

ER -