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Mechanical cycles in multivariant martensitic single-crystal Cu-Zn-Al shape memory alloys

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Abstract

The behaviour of Cu-Zn-Al single crystals with martensitic structure has been studied in relation to compression tests carried out at room temperature. Each sample was loaded at constant stress for different cycles and different stress values were used. Martensite stabilization was observed both in successive cycles and by increasing stress. This stabilization brought about a loss of shape memory recovery effect, on the one hand, and a training effect under stress, on the other, allowing the material total recovery in comparison with the previous cycle due to a two-way memory effect. This two-way memory effect appears at certain stress levels and/or determined cycles.

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Author notes

  1. F. J. Gil

    Present address: Ciencia de los Materiales e Ingeniería Metalúrgica, ETSIIB, Universidad Politécnica de Catalunya, Avda. Diagonal 647, 08028, Barcelona, Spain

Authors and Affiliations

  1. Ciencia de Materiales e Ingeniería Metalúrgica, Metalúrgía Física, Facultad de Química, Universidad de Barcelona, C/Martí i Franqués 1, 08028, Barcelona, Spain

    J. M. Guilemany & F. J. Gil

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  1. J. M. Guilemany
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  2. F. J. Gil
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Guilemany, J.M., Gil, F.J. Mechanical cycles in multivariant martensitic single-crystal Cu-Zn-Al shape memory alloys. J Mater Sci 27, 3211–3214 (1992). https://doi.org/10.1007/BF01116014

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  • DOI: https://doi.org/10.1007/BF01116014

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