Ti-6Al-4V 合金の二相組織における変形挙動の結晶塑性解析

Translated title of the contribution: Crystal plasticity analysis on the deformation behavior in the dual phase microstructure in Ti-6Al-4V alloy

河野 義樹, 大橋 鉄也, 奥山 彫夢, 田中 將己

Research output: Contribution to journalConference article

Abstract

Vanadium contents in the β phase in the Ti-6Al-4V alloy (Ti-64) changes by the heat treatment, plastic working, and so on, and its mechanical properties are also changed; it would affect the deformation mechanisms of microstructures in Ti-64; however, it is not fully understood. In this study, a sandwiched microstructure of α and β phases, where the crystal orientations satisfied Burgers orientation relation, was assumed, and the uniaxial tensile analysis was conducted using a crystal plasticity finite element method (CPFEM). The results showed that the elastic constants of the β phase was higher than that of α phase when the vanadium content of the β phase was high and the tensile direction corresponded to the direction perpendicular to the c-axis; it resulted in higher stress within the β phase in the range of elastic deformation. In contrast, there was a possibility that such relationship of stresses between α and β phases was not established by conditions in the range of plastic deformation.
Original languageJapanese
Pages (from-to)149
Journal計算力学講演会講演論文集
Volume2017
Issue number0
DOIs
Publication statusPublished - 2017

Fingerprint

vanadium
plasticity
microstructure
crystal
deformation mechanism
plastic deformation
finite element method
mechanical property
plastic
analysis

Cite this

Ti-6Al-4V 合金の二相組織における変形挙動の結晶塑性解析. / 河野義樹; 大橋鉄也; 奥山彫夢; 田中將己.

In: 計算力学講演会講演論文集, Vol. 2017, No. 0, 2017, p. 149.

Research output: Contribution to journalConference article

河野義樹 ; 大橋鉄也 ; 奥山彫夢 ; 田中將己. / Ti-6Al-4V 合金の二相組織における変形挙動の結晶塑性解析. In: 計算力学講演会講演論文集. 2017 ; Vol. 2017, No. 0. pp. 149.
@article{f45e5c5a889b42e9822061bda377f07d,
title = "Ti-6Al-4V 合金の二相組織における変形挙動の結晶塑性解析",
abstract = "Vanadium contents in the β phase in the Ti-6Al-4V alloy (Ti-64) changes by the heat treatment, plastic working, and so on, and its mechanical properties are also changed; it would affect the deformation mechanisms of microstructures in Ti-64; however, it is not fully understood. In this study, a sandwiched microstructure of α and β phases, where the crystal orientations satisfied Burgers orientation relation, was assumed, and the uniaxial tensile analysis was conducted using a crystal plasticity finite element method (CPFEM). The results showed that the elastic constants of the β phase was higher than that of α phase when the vanadium content of the β phase was high and the tensile direction corresponded to the direction perpendicular to the c-axis; it resulted in higher stress within the β phase in the range of elastic deformation. In contrast, there was a possibility that such relationship of stresses between α and β phases was not established by conditions in the range of plastic deformation.",
author = "義樹 河野 and 鉄也 大橋 and 彫夢 奥山 and 將己 田中",
year = "2017",
doi = "10.1299/jsmecmd.2017.30.149",
language = "Japanese",
volume = "2017",
pages = "149",
journal = "計算力学講演会講演論文集",
issn = "1348-026X",
publisher = "一般社団法人日本機械学会",
number = "0",

}

TY - JOUR

T1 - Ti-6Al-4V 合金の二相組織における変形挙動の結晶塑性解析

AU - 河野, 義樹

AU - 大橋, 鉄也

AU - 奥山, 彫夢

AU - 田中, 將己

PY - 2017

Y1 - 2017

N2 - Vanadium contents in the β phase in the Ti-6Al-4V alloy (Ti-64) changes by the heat treatment, plastic working, and so on, and its mechanical properties are also changed; it would affect the deformation mechanisms of microstructures in Ti-64; however, it is not fully understood. In this study, a sandwiched microstructure of α and β phases, where the crystal orientations satisfied Burgers orientation relation, was assumed, and the uniaxial tensile analysis was conducted using a crystal plasticity finite element method (CPFEM). The results showed that the elastic constants of the β phase was higher than that of α phase when the vanadium content of the β phase was high and the tensile direction corresponded to the direction perpendicular to the c-axis; it resulted in higher stress within the β phase in the range of elastic deformation. In contrast, there was a possibility that such relationship of stresses between α and β phases was not established by conditions in the range of plastic deformation.

AB - Vanadium contents in the β phase in the Ti-6Al-4V alloy (Ti-64) changes by the heat treatment, plastic working, and so on, and its mechanical properties are also changed; it would affect the deformation mechanisms of microstructures in Ti-64; however, it is not fully understood. In this study, a sandwiched microstructure of α and β phases, where the crystal orientations satisfied Burgers orientation relation, was assumed, and the uniaxial tensile analysis was conducted using a crystal plasticity finite element method (CPFEM). The results showed that the elastic constants of the β phase was higher than that of α phase when the vanadium content of the β phase was high and the tensile direction corresponded to the direction perpendicular to the c-axis; it resulted in higher stress within the β phase in the range of elastic deformation. In contrast, there was a possibility that such relationship of stresses between α and β phases was not established by conditions in the range of plastic deformation.

U2 - 10.1299/jsmecmd.2017.30.149

DO - 10.1299/jsmecmd.2017.30.149

M3 - Conference article

VL - 2017

SP - 149

JO - 計算力学講演会講演論文集

JF - 計算力学講演会講演論文集

SN - 1348-026X

IS - 0

ER -