Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Cesar Roberto de Farias Azevedo"'
Autor:
Elmer Antonio Mamani-Calcina, Edgar Apaza-Huallpa, Daysi Gonzalez-Diaz, Hector Vargas-Cardenas, Erika Guerra-Santander, Dany Michell Andrade-Centeno, Bruno Nacsa, Jonathan Paulino Ferreira Alves, Fernando José Gomes Landgraf, Cesar Roberto de Farias Azevedo
Publikováno v:
REM: International Engineering Journal, Vol 73, Iss 4, Pp 523-530 (2020)
Abstract The microstructure of the main structural elements (Phoenix columns, transversal beams and tie-rods) of the Simón Bolivar iron bridge, located in Arequipa (Peru), was investigated. The bridge was supposedly designed by Gustave Eiffel and op
Externí odkaz:
https://doaj.org/article/90052d91fded455d9ac16b630127d007
Publikováno v:
Materials Research, Vol 23, Iss 2 (2020)
Abstract The paper reviews the events that led to the understanding of the recrystallisation of metals throughout history, covering the timeline from 3500 BC until the 1950s and dealing mainly with the misconceptions related to the “recrystallisati
Externí odkaz:
https://doaj.org/article/5c7224f3dc7f4865bcdf4a6193895772
Autor:
Henrique Boschetti Pereira, Zehbour Panossian, Ilson Palmieri Baptista, Cesar Roberto de Farias Azevedo
Publikováno v:
Materials Research, Vol 22, Iss 2 (2019)
Abstract Stress corrosion cracking (SCC) of UNS S31603 austenitic stainless steel (ASS), UNS S32205 duplex stainless steel (DSS) and UNS S32750 super duplex stainless steel (SDSS) was investigated. SCC tests were carried out at 110 ºC for 500 h unde
Externí odkaz:
https://doaj.org/article/552056e12b754dcc9523464b96a27f42
Publikováno v:
Materials Research, Vol 20, Iss 1, Pp 119-129 (2016)
Microstructural characterization techniques, including EDX (Energy Dispersive X-ray Analysis) microanalyses, were used to investigate the slag inclusions in the microstructure of ferrous artifacts of the Royal Iron Factory of São João de Ipanema (f
Externí odkaz:
https://doaj.org/article/62c16dcc2182442ebdc7bfa9de1e2d8b
Publikováno v:
Materials Research, Vol 19, Iss 4, Pp 942-953 (2016)
Abstract The thermodynamic optimization of Ti-Si-X systems requires that their respective binary systems are constantly updated. The Ti-Si system has been experimentally investigated since the 1950s and these critical experimental data can be employe
Externí odkaz:
https://doaj.org/article/ea54a8756e0648c2b7cfa161498a7c56
Publikováno v:
Materials Research, Vol 21, Iss 5 (2018)
This paper studied the effect of the austenite grain refinement on the tensile and impact properties of a cast Hadfield steel (12 % Mn, 1.2 %C and 0.65 % Si). The austenite grain refinement was obtained by hafnium inoculation. Microstructural charact
Externí odkaz:
https://doaj.org/article/0a6c5639b2d04badaea94403f3b73808
Publikováno v:
REM: International Engineering Journal, Vol 70, Iss 2, Pp 201-207
Abstract The thermodynamic optimization of Ti-X-Si systems requires that their respective binary systems be constantly updated. The most recent assessments of the Ti-Si phase diagrams used three sublattices to describe the Ti5Si3 phase. The stable ve
Externí odkaz:
https://doaj.org/article/b0aac4c4995e4447b6f9b1a96e6832c7
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Investigou-se o efeito do tamanho de grão austenítico na cinética e na morfologia do produto da reação bainítica de um ferro fundido nodular austemperado (FFNA). Foram estudados 3 tamanhos de grão austeníticos, a saber: GG (grão grosseiro),
Autor:
Cesar Roberto de Farias Azevedo, Henrique Boschetti Pereira, Hélio Goldenstein, André Paulo Tschiptschin
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The effect of the austenitization route on the bainitic reaction kinetics of an alloyed (3.2C–2.8Si–1.8Ni–1.4Cu–0.4Mn–0.2Mo–0.1Cr) austempered ductile iron was studied. Two-step, conventional and rapid austenitization heat treatments were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da3cdd16a2e978f644ebecd50f64b8c
https://doi.org/10.1007/s40962-020-00569-1
https://doi.org/10.1007/s40962-020-00569-1
Publikováno v:
International Journal of Cast Metals Research. 33:201-217
The effects of cooling rate and carbon equivalent on the tensile strength of pearlitic lamellar graphite cast irons were investigated. The cooling rate was varied from 6°C/s to 35°C/s for values of...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f38462dd1781556955feaeac0dddfc9
https://doi.org/10.1080/13640461.2020.1822573
https://doi.org/10.1080/13640461.2020.1822573