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

doi:10.1088/0953-2048/12/8/305

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

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	499-506
Number of pages	8
Journal	Superconductor Science and Technology
Volume	12
Issue number	8
DOIs	https://doi.org/10.1088/0953-2048/12/8/305
Publication status	Published - 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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Progress of fatigue damages and its influence on the critical current of multifilamentary Nb₃Al superconducting composite. / Ochiai, S.; Ohno, H.; Sekino, F.; Oki, Y.; Hojo, M.; Koganeya, M.; Hayashi, K.; Yamada, Y.; Ayai, N.; Watanabe, Kazuo.

In: Superconductor Science and Technology, Vol. 12, No. 8, 01.08.1999, p. 499-506.

Research output: Contribution to journal › Article › peer-review

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