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Critical Analyses on the Instrumented Ultramicrohardness Results on Aging NiTi Alloy in Distinct Phase Fields

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Proceedings of the International Conference on Martensitic Transformations: Chicago

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

A study was carried out on a Ni-rich NiTi alloy solubilized at 850 °C and subjected to two different treatments: annealing for 0.5 h at 500 °C and rolling at room temperature followed by annealing for 0.5 h at 500 °C. In both cases, measurements of instrumented ultramicrohardness showed that the treatment promoted a superelastic effect.

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Acknowledgements

P. F. Rodrigues and F. M. Braz Fernandes acknowledge the funding of CENIMAT/I3N by COMPETE 2020, through FCT, under the project UID/CTM/50025/2013.

P. F. Rodrigues acknowledges the funding of CAPES (CsF/Brazil – BEX 11943-13-0). R. S. Teixeira, F. S. Santos and A. S. Paula acknowledge the funding of CNPq (master scholarship and research productivity scholarship PQ-2 – Process 307798/2015-1).

The authors thank Professor Jorge Otubo for donating the starting materials that were produced in the Instituto Tecnológico da Aeronáutica (São José dos Campos, SP – Brazil).

The authors thank Professors Ladário da Silva and José Augusto Oliveira Huguenin which allowed the use of the Laboratório Multiusuário de Caracterização de Materiais do Instituto de Ciências Exatas da Universidade Federal Fluminense (ICEx/UFF), in Volta Redonda/RJ - Brazil, for the use of the instrumented ultramicrohardness equipment for analysis of the samples.

The authors acknowledge the funding of European Program IRSES - Marie Curie PIRSES GA-2013-612585 (under the MIDAS project – “Micro and Nanoscale Design of Thermally Actuating Systems”).

Author information

Authors and Affiliations

  1. Seção de Engenharia Mecânica e de Materiais, Instituto Militar de Engenharia (IME), Praça General Tibúrcio 80, Urca, Rio de Janeiro, RJ, Brazil

    R. S. Teixeira & A. S. Paula

  2. Departamento de Engenharia Química e de Materiais, Pontifícia Universidade Católica (PUC), Rua Marquês de São Vicente 225, Gávea, Rio de Janeiro, RJ, Brazil

    F. S. Santos

  3. CENIMAT/i3N, Faculdade de Ciências e Tecnologia, Departamento de Ciência dos Materiais, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal

    P. F. Rodrigues & F. M. Braz Fernandes

Authors
  1. R. S. Teixeira
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  2. A. S. Paula
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  3. F. S. Santos
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  4. P. F. Rodrigues
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  5. F. M. Braz Fernandes
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Corresponding author

Correspondence to A. S. Paula .

Editor information

Editors and Affiliations

  1. Colorado School of Mines, Golden, Colorado, USA

    Aaron P. Stebner

  2. Northwestern University, Evanston, Illinois, USA

    Gregory B. Olson

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Teixeira, R.S., Paula, A.S., Santos, F.S., Rodrigues, P.F., Braz Fernandes, F.M. (2018). Critical Analyses on the Instrumented Ultramicrohardness Results on Aging NiTi Alloy in Distinct Phase Fields. In: Stebner, A., Olson, G. (eds) Proceedings of the International Conference on Martensitic Transformations: Chicago. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-76968-4_17

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