Mechanical and shape memory properties of Ni43Co 7Mn39Sn11 alloy compacts fabricated by pressureless sintering

K. Ito, W. Ito, R. Y. Umetsu, I. Karaman, K. Ishida, R. Kainuma

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Mechanical and shape memory properties of Ni43Co 7Mn39Sn11 metamagnetic shape memory sintering compacts, fabricated by pressureless sintering, were investigated. With sintering time the porosity drastically decreases and the ductility is significantly enhanced compared to the samples obtained by conventional induction melting. Moreover, the fracture strain in the specimen sintered at 1173 K for 144 h is almost the same as that in the high density sintering compacts by spark plasma sintering. Interestingly, the shape memory effect decreases with decreasing porosity.

Original languageEnglish
Pages (from-to)1236-1239
Number of pages4
JournalScripta Materialia
Volume63
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Martensitic transformation
  • Metamagnetic shape memory alloys
  • Powder metallurgy
  • Pressureless sintering

ASJC Scopus subject areas

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

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