Precipitate contribution to the acoustic nonlinearity in nickel-based superalloy

Chung Seok Kim; Cliff J. Lissenden

doi:10.1088/0256-307X/26/8/086107

Precipitate contribution to the acoustic nonlinearity in nickel-based superalloy

Chung Seok Kim, Cliff J. Lissenden

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26 Scopus citations

Abstract

The influence of γ' precipitate on the acoustic nonlinearity is investigated for a nickel-based superalloy, which is subjected to creep deformation. During creep deformation, the cuboidal γ' precipitate is preferentially coarsened in a direction perpendicular to the applied stress axis. The length and shape factor of the γ' precipitate increase with creep time. The increase of relative acoustic nonlinearity with increasing fraction of creep life is discussed in relation to the rafting of γ' precipitate, which is closely related to the scattering and distortion of the acoustic wave.

Original language	English (US)
Article number	086107
Journal	Chinese Physics Letters
Volume	26
Issue number	8
DOIs	https://doi.org/10.1088/0256-307X/26/8/086107
State	Published - 2009

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/0256-307X/26/8/086107

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title = "Precipitate contribution to the acoustic nonlinearity in nickel-based superalloy",

abstract = "The influence of γ' precipitate on the acoustic nonlinearity is investigated for a nickel-based superalloy, which is subjected to creep deformation. During creep deformation, the cuboidal γ' precipitate is preferentially coarsened in a direction perpendicular to the applied stress axis. The length and shape factor of the γ' precipitate increase with creep time. The increase of relative acoustic nonlinearity with increasing fraction of creep life is discussed in relation to the rafting of γ' precipitate, which is closely related to the scattering and distortion of the acoustic wave.",

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AU - Lissenden, Cliff J.

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AB - The influence of γ' precipitate on the acoustic nonlinearity is investigated for a nickel-based superalloy, which is subjected to creep deformation. During creep deformation, the cuboidal γ' precipitate is preferentially coarsened in a direction perpendicular to the applied stress axis. The length and shape factor of the γ' precipitate increase with creep time. The increase of relative acoustic nonlinearity with increasing fraction of creep life is discussed in relation to the rafting of γ' precipitate, which is closely related to the scattering and distortion of the acoustic wave.

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JO - Chinese Physics Letters

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M1 - 086107

ER -

Precipitate contribution to the acoustic nonlinearity in nickel-based superalloy

Abstract

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