Residual strain estimation in multifilamentary Nb/sub 3/Sn wires with CuNb reinforcement

Author

Watanabe, K. ; Katagiri, K. ; Noto, K. ; Awaji, K. ; Awaji, S. ; Goto, Keisuke ; Sadakata, N. ; Saito, Takashi ; Kohno, O.

Author_Institution

Inst. of Mater. Res., Tohoku Univ., Sendai, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1905

Lastpage

1908

Abstract

The bronze processed multifilamentary Nb/sub 3/Sn superconducting wires with Cu-20 wt.% Nb composite reinforcement, which exhibited the high yield stress even after a typical heat treatment of about 700/spl deg/C for 8 days, have been fabricated. The strain effects on the critical current of the Nb/sub 3/Sn wires reinforced with CuNb composite were measured, and the estimation of residual strain was performed using a rule of mixtures. Good agreement is obtained between measured and calculated residual strain values.<>

Keywords

copper alloys; critical currents; deformation; heat treatment; multifilamentary superconductors; niobium alloys; tin alloys; type II superconductors; yield stress; CuNb reinforcement; Nb/sub 3/Sn-NbCu; bronze processed wires; critical current; heat treatment; multifilamentary wires; residual strain; superconducting wires; yield stress; Capacitive sensors; Critical current; Current measurement; Heat treatment; Niobium; Performance evaluation; Residual stresses; Strain measurement; Superconducting filaments and wires; Tin;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402954

Filename

402954