Representative volume element (RVE) based crystal plasticity study of void growth on phase boundary in titanium alloys

U. B. Asim, M. A. Siddiq (Corresponding Author), M. E. Kartal

Research output: Contribution to journalArticle

Abstract

Crystal plasticity based finite element method (CPFEM) studies have been successfully used to model different material behaviour and phenomenon, including but not limited to; fatigue, creep and texture evolution. This capability can be extended to include the ductile damage and failure in the model. Ductile failure in metals is governed by void nucleation, growth, and coalescence. High strength titanium alloys can be formed from sheets and components and are prone to ductile failure. α – β Titanium alloys are in widespread use, ranging from aerospace, automotive, energy to oil and gas. They have multiple phases present in the microstructure but α and β phases are dominant and are present in various morphologies. This study focuses on the 3D representative volume element (RVE) simulations of spherical void of known initial porosity at the interface of α and β phase single crystals. The effect of initial porosity, applied triaxiality and orientation of RVE with respect to the loading direction is investigated. Slip based crystal plasticity formulation implemented as a user subroutine in commercially available software was used to simulate the void growth and the results of the same are presented. Lastly, a generalised correlation among loading type, loading direction, crystal orientation, phase interface orientation, and void growth is presented.
Original languageEnglish
Pages (from-to)346-350
Number of pages5
JournalComputational Materials Science
Volume161
Early online date19 Feb 2019
DOIs
Publication statusPublished - 15 Apr 2019
Event28th International Workshop on Computational Mechanics of Materials (IWCMM28) - Glasgow, United Kingdom
Duration: 10 Sep 201812 Sep 2018

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Crystal Plasticity
Titanium Alloy
titanium alloys
Phase boundaries
Voids
Titanium alloys
plastic properties
Plasticity
voids
Crystal orientation
Crystals
Porosity
crystals
Phase interfaces
High strength alloys
Subroutines
high strength alloys
Coalescence
porosity
triaxial stresses

Keywords

  • crystal plasticity
  • phase boundary
  • void growth
  • titanium alloys
  • dual phase alloys
  • BEHAVIOR
  • Phase boundary
  • Void growth
  • Dual phase alloys
  • SIMULATION
  • Crystal plasticity
  • Titanium alloys
  • FRACTURE
  • COALESCENCE
  • MICROSTRUCTURE

Cite this

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title = "Representative volume element (RVE) based crystal plasticity study of void growth on phase boundary in titanium alloys",
abstract = "Crystal plasticity based finite element method (CPFEM) studies have been successfully used to model different material behaviour and phenomenon, including but not limited to; fatigue, creep and texture evolution. This capability can be extended to include the ductile damage and failure in the model. Ductile failure in metals is governed by void nucleation, growth, and coalescence. High strength titanium alloys can be formed from sheets and components and are prone to ductile failure. α – β Titanium alloys are in widespread use, ranging from aerospace, automotive, energy to oil and gas. They have multiple phases present in the microstructure but α and β phases are dominant and are present in various morphologies. This study focuses on the 3D representative volume element (RVE) simulations of spherical void of known initial porosity at the interface of α and β phase single crystals. The effect of initial porosity, applied triaxiality and orientation of RVE with respect to the loading direction is investigated. Slip based crystal plasticity formulation implemented as a user subroutine in commercially available software was used to simulate the void growth and the results of the same are presented. Lastly, a generalised correlation among loading type, loading direction, crystal orientation, phase interface orientation, and void growth is presented.",
keywords = "crystal plasticity, phase boundary, void growth, titanium alloys, dual phase alloys, BEHAVIOR, Phase boundary, Void growth, Dual phase alloys, SIMULATION, Crystal plasticity, Titanium alloys, FRACTURE, COALESCENCE, MICROSTRUCTURE",
author = "Asim, {U. B.} and Siddiq, {M. A.} and Kartal, {M. E.}",
note = "Author is thankful to University of Aberdeen for the award of Elphinstone Scholarship which covers the tuition fee of PhD study of author.",
year = "2019",
month = "4",
day = "15",
doi = "10.1016/j.commatsci.2019.02.005",
language = "English",
volume = "161",
pages = "346--350",
journal = "Computational Materials Science",
issn = "0927-0256",
publisher = "Elsevier",

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TY - JOUR

T1 - Representative volume element (RVE) based crystal plasticity study of void growth on phase boundary in titanium alloys

AU - Asim, U. B.

AU - Siddiq, M. A.

AU - Kartal, M. E.

N1 - Author is thankful to University of Aberdeen for the award of Elphinstone Scholarship which covers the tuition fee of PhD study of author.

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Crystal plasticity based finite element method (CPFEM) studies have been successfully used to model different material behaviour and phenomenon, including but not limited to; fatigue, creep and texture evolution. This capability can be extended to include the ductile damage and failure in the model. Ductile failure in metals is governed by void nucleation, growth, and coalescence. High strength titanium alloys can be formed from sheets and components and are prone to ductile failure. α – β Titanium alloys are in widespread use, ranging from aerospace, automotive, energy to oil and gas. They have multiple phases present in the microstructure but α and β phases are dominant and are present in various morphologies. This study focuses on the 3D representative volume element (RVE) simulations of spherical void of known initial porosity at the interface of α and β phase single crystals. The effect of initial porosity, applied triaxiality and orientation of RVE with respect to the loading direction is investigated. Slip based crystal plasticity formulation implemented as a user subroutine in commercially available software was used to simulate the void growth and the results of the same are presented. Lastly, a generalised correlation among loading type, loading direction, crystal orientation, phase interface orientation, and void growth is presented.

AB - Crystal plasticity based finite element method (CPFEM) studies have been successfully used to model different material behaviour and phenomenon, including but not limited to; fatigue, creep and texture evolution. This capability can be extended to include the ductile damage and failure in the model. Ductile failure in metals is governed by void nucleation, growth, and coalescence. High strength titanium alloys can be formed from sheets and components and are prone to ductile failure. α – β Titanium alloys are in widespread use, ranging from aerospace, automotive, energy to oil and gas. They have multiple phases present in the microstructure but α and β phases are dominant and are present in various morphologies. This study focuses on the 3D representative volume element (RVE) simulations of spherical void of known initial porosity at the interface of α and β phase single crystals. The effect of initial porosity, applied triaxiality and orientation of RVE with respect to the loading direction is investigated. Slip based crystal plasticity formulation implemented as a user subroutine in commercially available software was used to simulate the void growth and the results of the same are presented. Lastly, a generalised correlation among loading type, loading direction, crystal orientation, phase interface orientation, and void growth is presented.

KW - crystal plasticity

KW - phase boundary

KW - void growth

KW - titanium alloys

KW - dual phase alloys

KW - BEHAVIOR

KW - Phase boundary

KW - Void growth

KW - Dual phase alloys

KW - SIMULATION

KW - Crystal plasticity

KW - Titanium alloys

KW - FRACTURE

KW - COALESCENCE

KW - MICROSTRUCTURE

U2 - 10.1016/j.commatsci.2019.02.005

DO - 10.1016/j.commatsci.2019.02.005

M3 - Article

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JF - Computational Materials Science

SN - 0927-0256

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