Ni50.3Ti25HF24.7 functional fatigue - Instabilities in the transformation strains

W. Abuzaid, H. Sehitoglu

Research output: Contribution to conferencePaperpeer-review

Abstract

The functional fatigue properties of the high temperature shape memory alloy Ni503Ti25Hf24.7 were investigated under isobaric loading conditions. Full field measurements of transformation strains showed localization and heterogeneities in the deformation field which increased locally at higher stress levels. An incremental increase in the transformation strains, globally, was observed at low cycle count followed by an incremental degradation with continued loading. The response was associated with local changes in the deformation field which was strongly affected by the applied stress and the incremental accumulation of irrecoverable strains during thermal cycling.

Original languageEnglish (US)
Pages320-321
Number of pages2
StatePublished - 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: Jun 18 2017Jun 20 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
CountryGreece
CityRhodes
Period6/18/176/20/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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