A multi-principal element alloy combining high specific strength and good ductility

A multi-principal element alloy combining high specific strength and good ductility (2022)

Authors:
USP affiliated authors: COELHO, GILBERTO CARVALHO - EEL ; NUNES, CARLOS ANGELO - EEL
Unidade: EEL
DOI: 10.1016/j.matlet.2022.132905
Subjects: NIÓBIO; MATERIAIS; LIGAS METÁLICAS; ALUMÍNIO; TITÂNIO
Keywords: High specific yield stress and good ductility; Multi-principal elements alloy; High-entropy alloys
Agências de fomento:
- Financiamento Boeing Company
- Financiamento CAPES
Language: Inglês
Abstract: Al8Nb27Ti29V28Zr8 multi-principal element alloy (MPEA) was prepared via arc melting. In the homogenized + heat treated condition the alloy is composed essentially of a matrix possessing A2 disordered BCC structure and nanometer-sized particles of Al3Zr5 and Laves AlZrV phases. The alloy demonstrated high yield strength (1250 MPa) and good compressive ductility (38 % until fracture) at room temperature, and maintained a high yield strength at 700 ◦C (720 MPa). The density was measured as 6.34 g.cm− 3 , resulting in a specific strength at 700 ◦C of 113.6 kPa.m3 /kg, near twice that of Ti6Al4V (67.7 kPa.m3 /kg) and Inconel 625 (46.2 kPa.m3 /kg) alloys, and more than three times higher than that of Ti-β21S (35.4 kPa.m3 /kg). However, the tests performed and results obtained were not sufficient to explain the simultaneous high yield stress and ductility at room temperature.
Imprenta:
- Publisher: Elsevier
- Date published: 2022
Source:
- Título do periódico: Materials letters
- ISSN: 0167-577X
- Volume/Número/Paginação/Ano: v.325, n.132905-5, p.1-5, 2022

Informações sobre o DOI: 10.1016/j.matlet.2022.132905 (Fonte: oaDOI API)

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ABNT

MORAES JUNIOR, José Mauro de et al. A multi-principal element alloy combining high specific strength and good ductility. Materials letters, v. 325, n. 132905-5, p. 1-5, 2022Tradução . . Disponível em: https://doi.org/10.1016/j.matlet.2022.132905. Acesso em: 23 maio 2024.
APA

Moraes Junior, J. M. de, Chaia, N., Cotton, J. D., Coelho, G. C., & Nunes, C. A. (2022). A multi-principal element alloy combining high specific strength and good ductility. Materials letters, 325( 132905-5), 1-5. doi:10.1016/j.matlet.2022.132905
NLM

Moraes Junior JM de, Chaia N, Cotton JD, Coelho GC, Nunes CA. A multi-principal element alloy combining high specific strength and good ductility [Internet]. Materials letters. 2022 ;325( 132905-5): 1-5.[citado 2024 maio 23 ] Available from: https://doi.org/10.1016/j.matlet.2022.132905
Vancouver

Moraes Junior JM de, Chaia N, Cotton JD, Coelho GC, Nunes CA. A multi-principal element alloy combining high specific strength and good ductility [Internet]. Materials letters. 2022 ;325( 132905-5): 1-5.[citado 2024 maio 23 ] Available from: https://doi.org/10.1016/j.matlet.2022.132905