High-temperature elastic anisotropy of B2-type FeAl

Mi Zhao; Kyosuke Yoshimi; Junya Nakamura; Kunio Yubuta; Takamasa Sugawara

doi:10.1016/j.scriptamat.2014.03.016

High-temperature elastic anisotropy of B2-type FeAl

Mi Zhao, Kyosuke Yoshimi, Junya Nakamura, Kunio Yubuta, Takamasa Sugawara

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

7 Citations (Scopus)

Abstract

The electromagnetic acoustic resonance method was applied to measure the elastic constants (c₁₁, c₁₂, and c₄₄) of Fe-40, -43 and -46Al (at.%) single crystals from room temperature to 1173 K. The temperature dependence of the energy factor, K, and the elastic anisotropy factor, A, was obtained. A increased monotonously with increasing temperature and reached ∼7 at ∼1200 K. Therefore, it was confirmed that B2-type FeAl shows an anomalous temperature dependence of elasticity.

Original language	English
Pages (from-to)	37-40
Number of pages	4
Journal	Scripta Materialia
Volume	82
DOIs	https://doi.org/10.1016/j.scriptamat.2014.03.016
Publication status	Published - 2014 Jul 1

Keywords

Acoustic methods
Elastic behavior
Iron aluminides
Mechanical properties
Single crystal

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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title = "High-temperature elastic anisotropy of B2-type FeAl",

abstract = "The electromagnetic acoustic resonance method was applied to measure the elastic constants (c11, c12, and c44) of Fe-40, -43 and -46Al (at.%) single crystals from room temperature to 1173 K. The temperature dependence of the energy factor, K, and the elastic anisotropy factor, A, was obtained. A increased monotonously with increasing temperature and reached ∼7 at ∼1200 K. Therefore, it was confirmed that B2-type FeAl shows an anomalous temperature dependence of elasticity.",

keywords = "Acoustic methods, Elastic behavior, Iron aluminides, Mechanical properties, Single crystal",

author = "Mi Zhao and Kyosuke Yoshimi and Junya Nakamura and Kunio Yubuta and Takamasa Sugawara",

year = "2014",

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doi = "10.1016/j.scriptamat.2014.03.016",

language = "English",

volume = "82",

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journal = "Scripta Materialia",

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T1 - High-temperature elastic anisotropy of B2-type FeAl

AU - Zhao, Mi

AU - Yoshimi, Kyosuke

AU - Nakamura, Junya

AU - Yubuta, Kunio

AU - Sugawara, Takamasa

PY - 2014/7/1

Y1 - 2014/7/1

N2 - The electromagnetic acoustic resonance method was applied to measure the elastic constants (c11, c12, and c44) of Fe-40, -43 and -46Al (at.%) single crystals from room temperature to 1173 K. The temperature dependence of the energy factor, K, and the elastic anisotropy factor, A, was obtained. A increased monotonously with increasing temperature and reached ∼7 at ∼1200 K. Therefore, it was confirmed that B2-type FeAl shows an anomalous temperature dependence of elasticity.

AB - The electromagnetic acoustic resonance method was applied to measure the elastic constants (c11, c12, and c44) of Fe-40, -43 and -46Al (at.%) single crystals from room temperature to 1173 K. The temperature dependence of the energy factor, K, and the elastic anisotropy factor, A, was obtained. A increased monotonously with increasing temperature and reached ∼7 at ∼1200 K. Therefore, it was confirmed that B2-type FeAl shows an anomalous temperature dependence of elasticity.

KW - Acoustic methods

KW - Elastic behavior

KW - Iron aluminides

KW - Mechanical properties

KW - Single crystal

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