Crystal plasticity modeling of β phase deformation in Ti-6Al-4V
Abstract
Ti-6Al-4V is an alloy of titanium that dominates titanium usage in applications ranging from mass-produced consumer goods to high-end aerospace parts. The material's structure on a microscale is known to affect its mechanical properties but these effects are not fully understood. Specifically, this work will address the effects of low volume fraction intergranular β phase on Ti-6Al-4V's mechanical response during the transition from elastic to plastic deformation. A crystal plasticity-based finite element model is used to fully resolve the deformation of the β phase for the first time. This high fidelity model captures mechanisms difficult to access via experiments or lower fidelity models. Lastly, the results are used to assess lower fidelity modeling assumptions and identify phenomena that have ramifications for failure of the material.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1438768
- Report Number(s):
- LLNL-JRNL-717740
Journal ID: ISSN 0965-0393; TRN: US1900518
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Modelling and Simulation in Materials Science and Engineering
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 7; Journal ID: ISSN 0965-0393
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 36 MATERIALS SCIENCE
Citation Formats
Moore, John A., Barton, Nathan R., Florando, Jeff, Mulay, Rupalee, and Kumar, Mukul. Crystal plasticity modeling of β phase deformation in Ti-6Al-4V. United States: N. p., 2017.
Web. doi:10.1088/1361-651X/aa841c.
Moore, John A., Barton, Nathan R., Florando, Jeff, Mulay, Rupalee, & Kumar, Mukul. Crystal plasticity modeling of β phase deformation in Ti-6Al-4V. United States. https://doi.org/10.1088/1361-651X/aa841c
Moore, John A., Barton, Nathan R., Florando, Jeff, Mulay, Rupalee, and Kumar, Mukul. 2017.
"Crystal plasticity modeling of β phase deformation in Ti-6Al-4V". United States. https://doi.org/10.1088/1361-651X/aa841c. https://www.osti.gov/servlets/purl/1438768.
@article{osti_1438768,
title = {Crystal plasticity modeling of β phase deformation in Ti-6Al-4V},
author = {Moore, John A. and Barton, Nathan R. and Florando, Jeff and Mulay, Rupalee and Kumar, Mukul},
abstractNote = {Ti-6Al-4V is an alloy of titanium that dominates titanium usage in applications ranging from mass-produced consumer goods to high-end aerospace parts. The material's structure on a microscale is known to affect its mechanical properties but these effects are not fully understood. Specifically, this work will address the effects of low volume fraction intergranular β phase on Ti-6Al-4V's mechanical response during the transition from elastic to plastic deformation. A crystal plasticity-based finite element model is used to fully resolve the deformation of the β phase for the first time. This high fidelity model captures mechanisms difficult to access via experiments or lower fidelity models. Lastly, the results are used to assess lower fidelity modeling assumptions and identify phenomena that have ramifications for failure of the material.},
doi = {10.1088/1361-651X/aa841c},
url = {https://www.osti.gov/biblio/1438768},
journal = {Modelling and Simulation in Materials Science and Engineering},
issn = {0965-0393},
number = 7,
volume = 25,
place = {United States},
year = {Thu Aug 24 00:00:00 EDT 2017},
month = {Thu Aug 24 00:00:00 EDT 2017}
}
Web of Science
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