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Alternative title: Improvement of mechanical properties by internal matrix reinforcement in bronze processed Nb3Sn wire - Internal matrix reinforcement by solid solution strengthening mechanism -

Description:

We approached the internal matrix reinforcements using the Cu-Sn-Zn and Cu-Sn-In ternary bronze alloy matrices. After Nb3Sn phase synthesis, these ternary bronze alloy matrices were transformed into (Cu, Zn) or (Cu, In) solid solutions having much higher mechanical strength. Jc degradation due to the transverse compressive stress on the internal matrix reinforced Nb3Sn multifilamentary was evaluated. No Jc degradation was observed approximately 100 and 150 MPa, which values were much higher than the conventional bronze processed Nb3Sn wire. We found that the internal matrix reinforcement was effective for suppressing Jc degradation due to transverse compressive stress.

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• In Copyright
  

Keyword: Nb3Sn, ブロンズ法, 機械特性, 固溶強化, 臨界電流

Date published: 2023-05-20

Publisher: Cryogenic Association of Japan

Journal:

• 低温工学 (ISSN: 03892441) vol. 58 issue. 3 p. 108-115

Funding:

• 日本学術振興会 16H04621 (固溶強化Cu-Snマトリックスを用いた核融合用高強度Nb3Sn超伝導線材の開発)

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.2221/jcsj.58.108

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Updated at: 2024-01-05 22:11:52 +0900

Published on MDR: 2023-11-17 13:30:08 +0900