High-temperature elastic anisotropy of B2-type FeAl

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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)37-40
Number of pages4
JournalScripta Materialia
Volume82
DOIs
Publication statusPublished - 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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