A Study on the Fabrication of TiNi/Al6061 Shape Memory Composite Material by Hot-Press Method and its Mechanical Property

Young Chul Park, Gyu Chang Lee, Yasubumi Furuya

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

An attempt was made to fabricate composite material of an Al alloy matrix reinforced by TiNi shape memory fiber using a hot-press method and to investigate its microstructures and mechanical properties. The analysis of SEM and EDS showed that the composite material had good interface bonding. The stress-strain behavior of the composite material was evaluated at room temperature and 363 K as a function of prestrain, and it showed that the yield stress at 363 K is higher than that at room temperature. It is also found that the yield stress of the composite material increased with increasing the amount of pre-strain and depended on the volume fraction of the fiber and heat treatment. The smartness of the composite could be given due to the shape memory effect of the TiNi fiber, which generated compressive residual stress in the matrix material when heated after being pre-strained. Microstructural observation revealed that interfacial reactions occurred between the matrix and fiber, creating two intermetallic layers.

Original languageEnglish
Pages (from-to)264-271
Number of pages8
JournalMaterials Transactions
Volume45
Issue number2
DOIs
Publication statusPublished - 2004 Feb

Keywords

  • Fiber reinforcement
  • Mechanical properties
  • Metal matrix composite
  • Shape memory alloy
  • Smart composite material

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'A Study on the Fabrication of TiNi/Al6061 Shape Memory Composite Material by Hot-Press Method and its Mechanical Property'. Together they form a unique fingerprint.

Cite this