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Title: Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling

Abstract

The deformation behavior of commercially pure titanium is studied using experiments and a crystal plasticity model. Compression tests along the rolling, transverse, and normal-directions, and tensile tests along the rolling and transverse directions are performed at room temperature to study the activation of slip and twinning in the hexagonal closed packed titanium. A detailed EBSD based statistical analysis of the microstructure is performed to develop statistics of both {10-12} tensile and {11-22} compression twins. A simple Monte Carlo (MC) twin variant selection criterion is proposed within the framework of the visco-plastic self-consistent (VPSC) model with a dislocation density (DD) based law used to describe dislocation hardening. In the model, plasticity is accommodated by prismatic, basal and pyramidal slip modes, and {10-12} tensile and {11-22} compression twinning modes. Thus, the VPSC-MC model successfully captures the experimentally observed activation of low Schmid factor twin variants for both tensile and compression twins modes. The model also predicts macroscopic stress-strain response, texture evolution and twin volume fraction that are in agreement with experimental observations.

Authors:
 [1];  [2];  [2];  [2];  [1];  [2]
  1. AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics and Applied Computer Science
  2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Materials Science and Technology Division
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22); Polish National Science Centre (NCN); Ministry of Science and Higher Education (Poland)
OSTI Identifier:
1432623
Report Number(s):
LA-UR-17-29636
Journal ID: 0921-5093
Grant/Contract Number:
AC52-06NA25396; FWP-06SCPE401; DEC-2015/19/D/ST8/00818
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Additional Journal Information:
Journal Volume: 724; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 97 MATHEMATICS AND COMPUTING; Crystal plasticity; Twin variant selection; Titanium; Dislocation density

Citation Formats

Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., and Tome, Carlos N. Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling. United States: N. p., 2018. Web. doi:10.1016/j.msea.2018.03.017.
Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., & Tome, Carlos N. Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling. United States. doi:10.1016/j.msea.2018.03.017.
Wronski, M., Arul Kumar, Mariyappan, Capolungo, Laurent, McCabe, Rodney J., Wierzbanowski, K., and Tome, Carlos N. Fri . "Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling". United States. doi:10.1016/j.msea.2018.03.017.
@article{osti_1432623,
title = {Deformation behavior of HCP titanium alloy: Experiment and Crystal plasticity modeling},
author = {Wronski, M. and Arul Kumar, Mariyappan and Capolungo, Laurent and McCabe, Rodney J. and Wierzbanowski, K. and Tome, Carlos N.},
abstractNote = {The deformation behavior of commercially pure titanium is studied using experiments and a crystal plasticity model. Compression tests along the rolling, transverse, and normal-directions, and tensile tests along the rolling and transverse directions are performed at room temperature to study the activation of slip and twinning in the hexagonal closed packed titanium. A detailed EBSD based statistical analysis of the microstructure is performed to develop statistics of both {10-12} tensile and {11-22} compression twins. A simple Monte Carlo (MC) twin variant selection criterion is proposed within the framework of the visco-plastic self-consistent (VPSC) model with a dislocation density (DD) based law used to describe dislocation hardening. In the model, plasticity is accommodated by prismatic, basal and pyramidal slip modes, and {10-12} tensile and {11-22} compression twinning modes. Thus, the VPSC-MC model successfully captures the experimentally observed activation of low Schmid factor twin variants for both tensile and compression twins modes. The model also predicts macroscopic stress-strain response, texture evolution and twin volume fraction that are in agreement with experimental observations.},
doi = {10.1016/j.msea.2018.03.017},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
number = C,
volume = 724,
place = {United States},
year = {Fri Mar 02 00:00:00 EST 2018},
month = {Fri Mar 02 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on March 2, 2019
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