Fatigue Properties for Bi-2212 High Temperature Superconducting Round Wires Under Axial Tensile Loading

Autor: Haiyang Zhang, X. S. Yang, X. F. Pan, Weirong Chen, Chengshan Li, Yuancong Zhao, Qingbin Hao
Rok vydání: 2020
Předmět:
Zdroj: Journal of Superconductivity and Novel Magnetism. 33:1967-1970
ISSN: 1557-1947
1557-1939
DOI: 10.1007/s10948-020-05477-3
Popis: Bi-2212 wires, which have high critical current density and critical magnetic field without anisotropy, offer significant potential applications for ultrahigh-field superconducting magnets. The Bi-2212 wire is very sensitive to strain. The strands are inevitably subjected to cyclic thermal or electromagnetic stress during application. There is a lack of understanding regarding the fatigue properties. In this paper, the degradation behavior of critical current for Bi-2212 wires under axial tensile fatigue loading was investigated. It was found that the fatigue life decreases with the increase in maximum fatigue stress.
Databáze: OpenAIRE