Temperature dependence of activation enthalpy for yielding in bimodal Ti6Al4V

Bhargavi Rani Anne, Masaki Tanaka, Tatsuya Morikawa

研究成果: ジャーナルへの寄稿記事

抄録

Mechanical properties relating to the thermally activated process of yielding was investigated in Ti6Al4V with a bimodal microstructure, consisting of both primary alpha grains and lamellar colonies of secondary alpha/beta lamellae. The temperature dependence of yield stress, effective stress, activation volume, and activation enthalpy were investigated between 77 K and 650 K. The yield stress and effective stress decreased with increasing temperature. It was found that the temperature dependence of activation enthalpy for yielding shows values between those obtained from basal slips and prismatic slips investigated in single crystalline α-titanium. This suggests that the thermally activated processes which control the yielding of bimodal Ti6Al4V is the combination of basal and prismatic slips.

元の言語英語
ページ(範囲)1828-1832
ページ数5
ジャーナルMaterials Transactions
60
発行部数9
DOI
出版物ステータス出版済み - 1 1 2019

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vanadium alloys
Vanadium alloys
Ternary alloys
ternary alloys
titanium alloys
Titanium alloys
aluminum alloys
Yield stress
Enthalpy
Aluminum alloys
Temperature distribution
temperature distribution
Activation energy
enthalpy
Chemical activation
activation
activation energy
temperature dependence
slip
Titanium

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Temperature dependence of activation enthalpy for yielding in bimodal Ti6Al4V. / Anne, Bhargavi Rani; Tanaka, Masaki; Morikawa, Tatsuya.

:: Materials Transactions, 巻 60, 番号 9, 01.01.2019, p. 1828-1832.

研究成果: ジャーナルへの寄稿記事

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