Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Antonio Augusto Araújo Pinto da Silva"'
Autor:
Ágata Mayara Paula Pontes, Marcela Silva Lamoglia, Leandro Bernardes Serrano, Elioenai Levi Barbedo, Antonio Augusto Araújo Pinto da Silva, Geovani Rodrigues, Gilbert Silva
Publikováno v:
Materials Research, Vol 27 (2024)
Refractory multi-principal element alloys constitute a novel category of metallic materials, and they have good properties, particularly at elevated temperatures. Currently, casting and powder metallurgy stand as the two predominant manufacturing rou
Externí odkaz:
https://doaj.org/article/23b33a4fb6424dfb8e6a8b614512965a
Autor:
Pedro Henrique Gonçalves, Agata Mayara Paula Pontes, Marcela Silva Lamoglia, Bruna Horta Bastos Kuffner, Antonio Augusto Araújo Pinto da Silva, Gilbert Silva
Publikováno v:
Materials Research, Vol 26 (2023)
Vanadis®8 is a high-value tool steel, that undergoes gas atomization and hot isostatic pressing during production , resulting in costly waste. Repurposing this waste material through powder metallurgy (PM) offers a cost-effective solution. This stud
Externí odkaz:
https://doaj.org/article/1b2e070de039473cbb50e690c200e395
Autor:
Marcela Silva Lamoglia, Pedro Henrique Gonçalves, Ágata Mayara Paula Pontes, Leandro Bernardes Serrano, Gilbert Silva, Antonio Augusto Araújo Pinto da Silva
Publikováno v:
Materials Research, Vol 25 (2022)
Abstract In this paper, Fe-15at.%Nb alloys were produced from high purity Fe (min. 99.8%) and Nb (min. 99.8%) powders via a mechanical alloying process. The effects of different Process Control Agents (i.e., methanol, hexane, and stearic acid) were i
Externí odkaz:
https://doaj.org/article/58b3f9e51752480c92c38fd9040b0883
Autor:
Luciano Braga Alkmin, Antonio Augusto Araújo Pinto da Silva, Carlos Angelo Nunes, Claudinei dos Santos, Gilberto Carvalho Coelho
Publikováno v:
Materials Research, Vol 17, Iss 3, Pp 627-631 (2014)
The focus of this work was to determine microstructural features in commercial Ni-Cr alloys which could be used to identify indirectly the presence of beryllium. Thus, eight commercial alloys were characterized by chemical analysis, thermal analysis,
Externí odkaz:
https://doaj.org/article/85f6a809fc3a463e840bd166f9c92ca9
Autor:
Renato Baldan, Antonio Augusto Araujo Pinto da Silva, Tiemi Manfio Tanno, Eliara Torres da Costa, João Victor Negri Brentegani, Antonio Augusto Couto
Publikováno v:
Materials Research, Vol 23, Iss 1 (2020)
Abstract The δ is an important stable phase that replaces the metastable γ'' in the microstructure of Inconel 625 superalloy. The present work aims to investigate the kinetic of δ-phase precipitation in the microstructure of Inconel 625 nickel-bas
Externí odkaz:
https://doaj.org/article/80e791931ce24357a5baa57524fb5f57
Autor:
Antonio Augusto Araujo Pinto da Silva, Gilberto Carvalho Coelho, Carlos Angelo Nunes, Jean Marc Fiorani, Nicolas David, Michel Vilasi
Publikováno v:
Materials Research, Vol 22, Iss 5 (2019)
In this work a re-investigation of the solubility limits of the (Nb), Nb3Al, Nb2Al and the Nb-rich side of the NbAl3 phases on the Nb-Al system is presented. Alloys in the binary fields ((Nb)+Nb3Al, Nb3Al+Nb2Al and Nb2Al+NbAl3) were arc-melted, and t
Externí odkaz:
https://doaj.org/article/e8581f64863b45a5b86fd82f06c97ce0
Autor:
Belmira Benedita de Lima-Kühn, Antonio Augusto Araujo Pinto da Silva, Paulo Atsushi Suzuki, Gilberto Carvalho Coelho, Carlos Angelo Nunes
Publikováno v:
Materials Research, Vol 19, Iss 5, Pp 1122-1126 (2016)
Alloys containing Me-Si-B (Me - Refractory Metal) are of great interest for high temperature structural applications and accurate knowledge of its low order systems (binaries and ternaries) is important to predict the phase relations in the multicomp
Externí odkaz:
https://doaj.org/article/d2092653bc124735932c80d237802de2