A brief discussion on the tensile creep deformation behaviour of wrought single-phase c-TiAl

Mainak Saha

doi:10.1016/j.matpr.2020.11.189

論文 A brief discussion on the tensile creep deformation behaviour of wrought single-phase c-TiAl

Mainak Saha (Metallurgical and Materials Engineering, National Institute of Technology Durgapur, India)

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Mainak Saha. A brief discussion on the tensile creep deformation behaviour of wrought single-phase c-TiAl. Materials Today: Proceedings. 2021, 46 (9), 3187-3192. https://doi.org/10.1016/j.matpr.2020.11.189

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(abstract)

Creep deformation behaviour in single phase γ-TiAl alloy has been an extensively studied topic since the late 1970 s. A lot of literatures have reported creep behaviour of γ-TiAl alloys, manufactured using different processing techniques. The present work is aimed to develop an understanding of steady state creep, through strain vs strain rate and strain vs ln(strain rate) plots. Besides, it also attempts to study the variation of stress exponent with temperature between 760 and 900⁰C and also, to determine activation energies using the two most common approaches, namely: Zener-Hollomon (Z-H) and Sherby-Dorn (S-D, temperature compensated time approach) for stress levels of 69.4 and 103.4 MPa between 760 and 900⁰C.

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