Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Leonardo Sales Araújo"'
Autor:
Aline Raquel Vieira Nunes, Sinara Borborema, Caio Marcello F. Azevedo Cossú, Leonardo Sales Araújo, Jean Dille, Loïc Malet, Michael J. Kaufman, Luiz Henrique de Almeida
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 4104-4112 (2024)
In this study, the influence of thermomechanical treatments on the microstructure and mechanical properties of a new metastable β-titanium Ti-23.6Nb-5.1Mo-6.7Zr alloy was assessed. The objective was to determine if the alloy is a potential candidate
Externí odkaz:
https://doaj.org/article/968481667e544ab289ce64af44bd1740
Autor:
Juliana Paes Leme de Mello Sousa, Renata Nunes Oliveira, Antonia Monica Neres Santos, Ormindo Domingues Gamallo, Leonardo Sales Araújo, Antonieta Middea, Yara Peluso Cid, Rosane Nora Castro
Publikováno v:
Polímeros, Vol 33, Iss 2 (2023)
Abstract Propolis is a resinous product collected by honeybees with a complex chemical composition. Sodium carboxymethylcellulose is a polymer commonly used in wound care. The goal of the present work was to produce and characterize NaCMC membranes l
Externí odkaz:
https://doaj.org/article/385966493a7249528b54f72977d15167
Autor:
Aline Raquel Vieira Nunes, Sinara Borborema, Leonardo Sales Araújo, Taissa Zangerolami Lopes Rodrigues, Loïc Malet, Jean Dille, Luiz Henrique de Almeida
Publikováno v:
Metals, Vol 13, Iss 11, p 1889 (2023)
A new generation of titanium alloys with non-toxic, non-allergenic elements and lower Young’s modulus (YM) have been developed, presenting modulus values close to that of bone. In titanium alloys, the value of the Young’s modulus is strongly depe
Externí odkaz:
https://doaj.org/article/346b1aabcd2d47cbbbf63b7d11cbe6f0
Autor:
Flávia da Cruz Gallo, Luiz Maurício Barreto de Azevedo, Cilene Labre, Leonardo Sales Araújo, Jean Dille, Luiz Henrique de Almeida
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 2, Pp 1801-1808 (2020)
The nickel-based superalloy 718 after processing through three thermomechanical routes, i.e., forged, hot rolled, and cold rolled, was investigated considering its δ-phase (Ni3Nb–DOa) intergranular precipitation. The samples were subjected to diff
Externí odkaz:
https://doaj.org/article/855b30e943704653b28a3e52e55fcd8e
Autor:
Aline Raquel Vieira Nunes, Sinara Borborema, Leonardo Sales Araújo, Luiz Henrique de Almeida, Michael J. Kaufman
Publikováno v:
Metals, Vol 12, Iss 10, p 1588 (2022)
Metastable β titanium alloys are developed for biomedical applications due to their low Young’s moduli and functional properties. These alloys can be fitted to different parts of orthopedic implants through thermomechanical processing and chemical
Externí odkaz:
https://doaj.org/article/f82dbc2d02c84cecbb37968d7ce18e50
Autor:
Jorge Carlos Ferreira Jorge, Joel Lemos Dias Monteiro, Antonio José de Carvalho Gomes, Ivani de Souza Bott, Luís Felipe Guimarães de Souza, Matheus Campolina Mendes, Leonardo Sales Araújo
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 1, Pp 561-571 (2019)
The development of consumables for welding of high strength steels represents a continuous challenge taking into account the great variety of alloy systems. In this regard, there are many applications, such as offshore structures, where the welding i
Externí odkaz:
https://doaj.org/article/f235b02543884bdda53aa79a2dc56ad5
Autor:
Luiz Maurício Barreto de Azevedo, Arthur Ribeiro Figueiredo, Flavia da Cruz Gallo, Leonardo Sales Araújo, Francisco Werley Cipriano Farias, Rodolfo da Silva Teixeira, Thiago Marques Ivaniski, Luiz Henrique de Almeida, Matheus Campolina Mendes
Publikováno v:
Materials Research, Vol 23, Iss 3 (2020)
Abstract Over the last decades, alloy 718 usage has expanded and requirements imposed by its industrial applications became more critical. The knowledge about grain boundary character distribution (GBCD) in alloy 718 and its effect on properties impr
Externí odkaz:
https://doaj.org/article/2443532d1ccc41028fb20bb30c96f842
Autor:
Andrea Pedroza da Rocha Santos, Thaís Conde da Mota, Heber Vieira Gomes Segundo, Luiz Henrique de Almeida, Leonardo Sales Araújo, Adriana da Cunha Rocha
Publikováno v:
Journal of Materials Research and Technology, Vol 7, Iss 3, Pp 331-336 (2018)
Interstitial free steels (IF steels) find wide application in the automotive industry, due to their excellent drawability. This work aims to study the microstructural and mechanical properties variations that might occur in an IF steel, when amounts
Externí odkaz:
https://doaj.org/article/d615b2ecea5d4c5f9e2470792afcc48d
Autor:
Sergio Neves Monteiro, Luiz Paulo Mendonça Brandão, Andersan dos Santos Paula, Carlos Nelson Elias, Artur Camposo Pereira, Foluke Salgado de Assis, Luiz Henrique de Almeida, Leonardo Sales Araújo
Publikováno v:
Materials Research, Vol 20, Iss suppl 2, Pp 892-898 (2018)
Two distinct AISI type 316 stainless steels, of Brazilian and Swedish origins, were compared regarding their creep fracture mechanisms at 600, 700 and 800°C. The possible mechanisms associated with the creep fracture strength were identified by mean
Externí odkaz:
https://doaj.org/article/6bff8b9a35124365b1106fce07389959
Autor:
Aline Raquel Vieira Nunes, Sinara Borborema Gabriel, Carlos Angelo Nunes, Leonardo Sales Araújo, Renato Baldan, Paulo Mei, Loïc Malet, Jean Dille, Luiz Henrique de Almeida
Publikováno v:
Materials Research, Vol 20, Iss suppl 2, Pp 526-531 (2017)
Metastable β-type Ti alloys with non-toxic addition elements such as Mo, Zr, Sn, Ta and Nb were developed as an alternative to the widely used Ti-6Al-4V alloy for biomedical applications. These alloys possess enhanced biocompatibility and reduced el
Externí odkaz:
https://doaj.org/article/3ebcf4a5b9ce4d6a8351f2cc1cd7a779