Progress of fatigue damages and its influence on the critical current of multifilamentary Nb3Al superconducting composite

S. Ochiai, H. Ohno, F. Sekino, Y. Oki, M. Hojo, M. Koganeya, K. Hayashi, Y. Yamada, N. Ayai, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Progress of the fatigue damage with increasing number of stress cycles at room temperature and its influence on the critical current at 4.2 K of Nb3Al multifilamentary composite wire were studied. With increasing number of stress cycles, the damage progressed in the order of three stages: stage I, formation of cracks in the clad copper; stage II, stable propagation of the cracks in the clad copper into the inner core portion, causing fracture of the Nb3Al filaments; stage III, unstable propagation of the main crack, causing overall fracture of the composite.

Original languageEnglish
Pages (from-to)499-506
Number of pages8
JournalSuperconductor Science and Technology
Volume12
Issue number8
DOIs
Publication statusPublished - 1999 Aug 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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