New martensite structures and composition dependence of martensitic transformations in Ni50AlxMn50-x alloys

T. Inoue, S. Morito, Y. Murakami, K. Oda, K. Otsuka

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Transformation temperatures and the structures of martensites were extensively studied for Ni50AlxMn50-x (16.0 ≤ x ≤ 20.5) alloys. By electron microscopy observations, all martensites were found to be long-period stacking-order structures of closed-packed planes, including new martensite structures such as 10M(15R) and 12M(36R). DSC measurements revealed two peaks for composition x < 17.5 and these were interpreted to correspond to two successive martensitic transformations. Based on these results, the map of transformation temperatures and martensite structures as a function of composition is proposed.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalMaterials Letters
Volume19
Issue number1-2
DOIs
Publication statusPublished - Mar 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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