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Deformation Twinning Behavior in Precipitate Strengthened Cu-Ni-Si Alloys

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TMS 2015 144th Annual Meeting & Exhibition

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Abstract

The deformation twinning behavior in Cu-Ni-Si alloys strengthened by Ni2Si precipitates have been studied. The SEM/EBSP result indicated that the nano-scale deformation twins cannot grow to micro twins during room temperature deformation. The results also revealed that the formation and growth of deformation twinning needs certain strain and stress level in the alloy aged at 723 K for 3.6k and deformed at 77 K. In contrast, it started from initial stage of deformation in the alloy aged at 723 K for 64.8 ks and deformed at 77 K. These results indicate that the deformation twinning needs certain level of stress rather than strain in precipitate strengthened Cu-Ni-Si alloy.

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Authors and Affiliations

  1. Metallurgy and Ceramics Science, Tokyo Institute of Technology, 2-12-1-S8-18, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan

    Akiyoshi Araki & Equo Kobayashi

  2. Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259-R2-18, Nagatuda-tyo, Midori-ku, Yokohama, 226-8503, Japan

    Tatsuo Sato

  3. Materials Engineering, The University of British Columbia, Frank Forward Building 309-6350 Stores Road, Vancouver, BC, V6T 1Z4, Canada

    Warren Poole

Authors
  1. Akiyoshi Araki
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  2. Equo Kobayashi
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  3. Tatsuo Sato
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  4. Warren Poole
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© 2015 TMS (The Minerals, Metals & Materials Society)

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Araki, A., Kobayashi, E., Sato, T., Poole, W. (2015). Deformation Twinning Behavior in Precipitate Strengthened Cu-Ni-Si Alloys. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_62

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