Enhancement of high temperature mechanical strength of TiNi fiber/Al composite induced by shape memory effect

Yasubumi Furuya, Minoru Taya

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This paper describes the shape memory effects of TiNi fiber Al matrix (TiNi/Al) composites on enhancement of its mechanical properties: tensile and fatigue resistance. A TiNi/Al composite was processed by a powder metallurgical route. The yield stress and fatigue resistance showed that they would increase with prestrain at temperature above the austenitic finish temperature of TiNi fiber (Af). The increases in tensile properties (yield stress) and fatigue resistance were attributed to the compressive stress field in the matrix which was induced when prestrained TiNi fibers shrank to its initial length upon heating above Af. The predictions based on the analytical model agreed reasonably well with the experiment.

Original languageEnglish
Pages (from-to)1163-1172
Number of pages10
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume60
Issue number12
DOIs
Publication statusPublished - 1996

Keywords

  • Concurrent material design
  • Equivalent inclusion model
  • Fiber reinforced composite
  • Intelligent material
  • Material strengthening
  • Powder metallurgy
  • Residual stress
  • Shape memory alloy
  • Sintering

ASJC Scopus subject areas

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

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