A physically-based structure-property model for additively manufactured Ti-6Al-4V
A physically-based, mixed-phase structure-property model is presented for microstructure-sensitivity of tensile stress-strain response, including yield stress, ultimate tensile strength, uniform elongation and flow stress (strain hardening), for additively manufactured Ti-6Al-4V. The interdependent...
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doaj-cc53c680c46847a5b9d3d704c0bba5692021-06-11T05:11:23ZengElsevierMaterials & Design0264-12752021-07-01205109709A physically-based structure-property model for additively manufactured Ti-6Al-4VXinyu Yang0Richard A. Barrett1Noel M. Harrison2Sean B. Leen3Corresponding authors at: I-Form, the SFI Research Centre for Advanced Manufacturing, Ireland.; I-Form, the SFI Research Centre for Advanced Manufacturing, Ireland; Mechanical Engineering, School of Engineering, College of Science and Engineering, NUI Galway, Ireland; Ryan Institute for Environmental, Marine and Energy Research, NUI Galway, IrelandI-Form, the SFI Research Centre for Advanced Manufacturing, Ireland; Mechanical Engineering, School of Engineering, College of Science and Engineering, NUI Galway, Ireland; Ryan Institute for Environmental, Marine and Energy Research, NUI Galway, IrelandI-Form, the SFI Research Centre for Advanced Manufacturing, Ireland; Mechanical Engineering, School of Engineering, College of Science and Engineering, NUI Galway, Ireland; Ryan Institute for Environmental, Marine and Energy Research, NUI Galway, IrelandCorresponding authors at: I-Form, the SFI Research Centre for Advanced Manufacturing, Ireland.; I-Form, the SFI Research Centre for Advanced Manufacturing, Ireland; Mechanical Engineering, School of Engineering, College of Science and Engineering, NUI Galway, Ireland; Ryan Institute for Environmental, Marine and Energy Research, NUI Galway, IrelandA physically-based, mixed-phase structure-property model is presented for microstructure-sensitivity of tensile stress-strain response, including yield stress, ultimate tensile strength, uniform elongation and flow stress (strain hardening), for additively manufactured Ti-6Al-4V. The interdependent effects of solutes, grain size, phase volume fraction and dislocation density are explicitly included. Solid-state phase transformation and dislocation density evolution are incorporated to simulate the effects of martensite dissolution and α-β transformation at high temperature. Predictions are validated by comparison with measured tensile test data for (i) effects of additive manufacturing process conditions (such as build orientation and sample size) on tensile properties, based on the microstructure attributes inherited from the process, and (ii) the effect of temperature on tensile stress-strain response across a broad range of temperatures. The model is thus applicable for rapid process-structure-property prediction, in conjunction with AM process modelling, to capture the effects of key manufacturing variables and for process optimization.http://www.sciencedirect.com/science/article/pii/S0264127521002616Additive manufacturingMicrostructureTensile propertiesPhase transformationDislocation density |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xinyu Yang Richard A. Barrett Noel M. Harrison Sean B. Leen |
spellingShingle |
Xinyu Yang Richard A. Barrett Noel M. Harrison Sean B. Leen A physically-based structure-property model for additively manufactured Ti-6Al-4V Materials & Design Additive manufacturing Microstructure Tensile properties Phase transformation Dislocation density |
author_facet |
Xinyu Yang Richard A. Barrett Noel M. Harrison Sean B. Leen |
author_sort |
Xinyu Yang |
title |
A physically-based structure-property model for additively manufactured Ti-6Al-4V |
title_short |
A physically-based structure-property model for additively manufactured Ti-6Al-4V |
title_full |
A physically-based structure-property model for additively manufactured Ti-6Al-4V |
title_fullStr |
A physically-based structure-property model for additively manufactured Ti-6Al-4V |
title_full_unstemmed |
A physically-based structure-property model for additively manufactured Ti-6Al-4V |
title_sort |
physically-based structure-property model for additively manufactured ti-6al-4v |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2021-07-01 |
description |
A physically-based, mixed-phase structure-property model is presented for microstructure-sensitivity of tensile stress-strain response, including yield stress, ultimate tensile strength, uniform elongation and flow stress (strain hardening), for additively manufactured Ti-6Al-4V. The interdependent effects of solutes, grain size, phase volume fraction and dislocation density are explicitly included. Solid-state phase transformation and dislocation density evolution are incorporated to simulate the effects of martensite dissolution and α-β transformation at high temperature. Predictions are validated by comparison with measured tensile test data for (i) effects of additive manufacturing process conditions (such as build orientation and sample size) on tensile properties, based on the microstructure attributes inherited from the process, and (ii) the effect of temperature on tensile stress-strain response across a broad range of temperatures. The model is thus applicable for rapid process-structure-property prediction, in conjunction with AM process modelling, to capture the effects of key manufacturing variables and for process optimization. |
topic |
Additive manufacturing Microstructure Tensile properties Phase transformation Dislocation density |
url |
http://www.sciencedirect.com/science/article/pii/S0264127521002616 |
work_keys_str_mv |
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