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...

Full description

Bibliographic Details
Main Authors: Xinyu Yang, Richard A. Barrett, Noel M. Harrison, Sean B. Leen
Format: Article
Language:English
Published: Elsevier 2021-07-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127521002616
id doaj-cc53c680c46847a5b9d3d704c0bba569
record_format Article
spelling 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 AT xinyuyang aphysicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT richardabarrett aphysicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT noelmharrison aphysicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT seanbleen aphysicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT xinyuyang physicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT richardabarrett physicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT noelmharrison physicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
AT seanbleen physicallybasedstructurepropertymodelforadditivelymanufacturedti6al4v
_version_ 1721383745146060800