Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy

X. L. Meng, W. Cai, L. M. Wang, Y. F. Zheng, L. C. Zhao, Li Min Zhou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

35 Citations (Scopus)

Abstract

Investigations of the microstructure of stress-induced martensite (SIM) and its evolution in a Ti36Ni49Hf15alloy were discussed. A discussion on the reasons for no stress plateau in tensile stress-strain curve of the Ti36Ni49Hf15alloy deformed in an austenite state was also presented. Results showed that the morphology of SIM changed from preferentially orientated to variant-crashed/variant-intersected with increasing the deformation strain. It was also noticed that the poor shape memory effect (SME) was be due to the dislocation slip during the stress-induced martensitic transformation.
Original languageEnglish
Pages (from-to)1177-1182
Number of pages6
JournalScripta Materialia
Volume45
Issue number10
DOIs
Publication statusPublished - 19 Nov 2001

Keywords

  • High temperature shape memory alloy
  • Microstructure
  • Stress-induced martensite
  • TiNiHf alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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