Elastic-Constant Measurement for Lotus-Type Porous Magnesium with Resonant Ultrasound Spectroscopy

Masakazu Tane, Tetsu Ichitsubo, Ryo Takeda, Masahiko Hirao, Teruyuki Ikeda, Hideo Nakajima

Research output: Contribution to journalArticle

Abstract

We measured the anisotropic elastic constants of a lotus-type porous magnesium, which possesses cylindrical pores aligned unidirectionally. We used the combination of resonant ultrasound spectroscopy and electromagnetic acoustic resonance methods to determine a complete set of the elastic constants. The acoustic measurements revealed that lotus magnesium shows hexagonal elastic symmetry with the c-axis along the longitudinal direction of the pores. Young's modulus E∥ parallel to the pore direction decreases linearly with porosity, while the normal Young's modulus E⊥ drops rapidly.

Original languageEnglish
Pages (from-to)417-419
Number of pages3
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume67
Issue number9
DOIs
Publication statusPublished - 2003 Sep
Externally publishedYes

Keywords

  • Elastic constants
  • Electromagnetic acoustic resonance
  • Magnesium
  • Porous metals
  • Resonant ultrasound spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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