TY - JOUR
T1 - Progress of fatigue damages and its influence on the critical current of multifilamentary Nb3Al superconducting composite
AU - Ochiai, S.
AU - Ohno, H.
AU - Sekino, F.
AU - Oki, Y.
AU - Hojo, M.
AU - Koganeya, M.
AU - Hayashi, K.
AU - Yamada, Y.
AU - Ayai, N.
AU - Watanabe, K.
PY - 1999/8
Y1 - 1999/8
N2 - 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.
AB - 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.
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U2 - 10.1088/0953-2048/12/8/305
DO - 10.1088/0953-2048/12/8/305
M3 - Article
AN - SCOPUS:0032654301
VL - 12
SP - 499
EP - 506
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 8
ER -