Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads (2020)
- Authors:
- Autor USP: SHIGUE, CARLOS YUJIRO - EEL
- Unidade: EEL
- DOI: 10.3390/met10020219
- Subjects: TRATAMENTO TÉRMICO; ESTRUTURA DOS MATERIAIS
- Keywords: Cu–Al–Ni monocrystalline alloy; reversible martensitic transformations; thermo-cyclic treatment under load; physical characterization and structural characterization
- Language: Inglês
- Abstract: Monocrystalline alloy with a nominal composition of Cu-13.7% Al-4.2% Ni (wt.%) that shows reversible martensitic transformations (RMTs) was studied. The alloy, manufactured by the “Memory Crystals Group” in Russia, was subjected to thermo-cyclical treatment (TCT) under tension within a range that included critical RMT temperatures. A special device was developed to perform TCTs (up to 500 cycles) and three different loads were applied: 0.11, 0.26, and 0.53 MPa. X-ray diffraction analysis, optical microscopy, differential calorimetry, and Vickers microhardness were involved in the alloy’s characterization. Under TCTs, the alloy displayed complex structural transformation, revealing the sequence of RMT, β1 ↔ R ↔ β 0 1 + γ 0 1; the involved phases were coherently precipitated but very sensitive to the experimental conditions. It was found that during TCTs (from 300 cycles) performed under optimum load (0.26 MPa), the processes of martensite reorientation, hardening, and stabilization of the structure were the most intensive thus leading to a reduction of RMT critical intervals and increased microhardness.
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ABNT
MATLAKHOVA, Lioudmila A. et al. Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads. Metals, v. 10, n. 2, p. 1-25, 2020Tradução . . Disponível em: https://doi.org/10.3390/met10020219. Acesso em: 31 dez. 2025. -
APA
Matlakhova, L. A., Pereira, E. C., Pulnev, S. A., Shigue, C. Y., & Palii, N. A. (2020). Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads. Metals, 10( 2), 1-25. doi:10.3390/met10020219 -
NLM
Matlakhova LA, Pereira EC, Pulnev SA, Shigue CY, Palii NA. Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads [Internet]. Metals. 2020 ; 10( 2): 1-25.[citado 2025 dez. 31 ] Available from: https://doi.org/10.3390/met10020219 -
Vancouver
Matlakhova LA, Pereira EC, Pulnev SA, Shigue CY, Palii NA. Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads [Internet]. Metals. 2020 ; 10( 2): 1-25.[citado 2025 dez. 31 ] Available from: https://doi.org/10.3390/met10020219 - Aprendizagem baseada em projetos: contribuições para o ensino de ciências na educação básica
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Informações sobre o DOI: 10.3390/met10020219 (Fonte: oaDOI API)
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