Elastic property of aged duplex stainless steel

Masakazu Tane; Tetsu Ichitsubo; Hirotsugu Ogi; Masahiko Hirao

doi:10.1016/S1359-6462(02)00388-3

Elastic property of aged duplex stainless steel

Masakazu Tane, Tetsu Ichitsubo, Hirotsugu Ogi, Masahiko Hirao

IMR - Materials Development Division

Osaka University

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

We have measured the elastic constants of duplex stainless steel, JIS-SCS14A (CF8M), aged isothermally at 400 °C up to 10,000 h, using resonant ultrasound spectroscopy method. The elastic constant c₁₁ (=λ+2μ) increases monotonically with the aging time, but c₄₄ (=μ) remains virtually unchanged. Using a micromechanics model, we have deduced the elastic constants of α-phase on the assumption that those of γ-phase are unchanged with the aging. The increase of the α-phase elastic constants reflects the spinodal decomposition of α-phase.

Original language	English
Pages (from-to)	229-234
Number of pages	6
Journal	Scripta Materialia
Volume	48
Issue number	3
DOIs	https://doi.org/10.1016/S1359-6462(02)00388-3
Publication status	Published - 2003 Feb

Keywords

Acoustic methods
Aging
Dual phases
Elastic behaviour
Micromechanical modeling

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10.1016/S1359-6462(02)00388-3

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abstract = "We have measured the elastic constants of duplex stainless steel, JIS-SCS14A (CF8M), aged isothermally at 400 °C up to 10,000 h, using resonant ultrasound spectroscopy method. The elastic constant c11 (=λ+2μ) increases monotonically with the aging time, but c44 (=μ) remains virtually unchanged. Using a micromechanics model, we have deduced the elastic constants of α-phase on the assumption that those of γ-phase are unchanged with the aging. The increase of the α-phase elastic constants reflects the spinodal decomposition of α-phase.",

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author = "Masakazu Tane and Tetsu Ichitsubo and Hirotsugu Ogi and Masahiko Hirao",

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AU - Tane, Masakazu

AU - Ichitsubo, Tetsu

AU - Ogi, Hirotsugu

AU - Hirao, Masahiko

PY - 2003/2

Y1 - 2003/2

N2 - We have measured the elastic constants of duplex stainless steel, JIS-SCS14A (CF8M), aged isothermally at 400 °C up to 10,000 h, using resonant ultrasound spectroscopy method. The elastic constant c11 (=λ+2μ) increases monotonically with the aging time, but c44 (=μ) remains virtually unchanged. Using a micromechanics model, we have deduced the elastic constants of α-phase on the assumption that those of γ-phase are unchanged with the aging. The increase of the α-phase elastic constants reflects the spinodal decomposition of α-phase.

AB - We have measured the elastic constants of duplex stainless steel, JIS-SCS14A (CF8M), aged isothermally at 400 °C up to 10,000 h, using resonant ultrasound spectroscopy method. The elastic constant c11 (=λ+2μ) increases monotonically with the aging time, but c44 (=μ) remains virtually unchanged. Using a micromechanics model, we have deduced the elastic constants of α-phase on the assumption that those of γ-phase are unchanged with the aging. The increase of the α-phase elastic constants reflects the spinodal decomposition of α-phase.

KW - Acoustic methods

KW - Aging

KW - Dual phases

KW - Elastic behaviour

KW - Micromechanical modeling

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JO - Scripta Materialia

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Elastic property of aged duplex stainless steel

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Keywords

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