Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Adrina P. Silva"'
Autor:
Fabrício A. Souza, Marlo O. Costa, Igor A. Magno, Jacson M. Nascimento, Adrina P. Silva, Thiago S. Costa, Otávio L. Rocha
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 5, Pp 5046-5052 (2019)
In this investigation, in order to evaluate the influence of microstructures on the microhardness of an aluminum-based multicomponent alloy, samples of the horizontally solidified Al-7 wt.%Si-3 wt.%Cu alloy were subjected to the T6 heat treatment. Mi
Externí odkaz:
https://doaj.org/article/a8a590f7a8bb4a6ab62b61234423271c
Autor:
ANGELA J. VASCONCELOS, RAFAEL H. KIKUCHI, ANDRÉ S. BARROS, THIAGO A. COSTA, MARCELINO DIAS, ANTONIO L. MOREIRA, ADRINA P. SILVA, OTÁVIO L. ROCHA
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 88, Iss 2, Pp 1099-1111 (2016)
An experimental study has been carried out to evaluate the microstructural and microhardness evolution on the directionally solidified binary Al-Cu and multicomponent Al-Cu-Si alloys and the influence of Si alloying. For this purpose specimens of Al-
Externí odkaz:
https://doaj.org/article/dc672b408ee74e6dbf4c1bfdb84796a2
Autor:
Cássio A. P. Silva, Layo R. M. Leal, Emanuelle C. Guimarães, Paulo M. Júnior, Antonio L. Moreira, Otávio L. Rocha, Adrina P. Silva
Publikováno v:
Advances in Materials Science and Engineering, Vol 2018 (2018)
This study aims to correlate the influence of thermal and microstructural parameters such as growth rate and cooling rate (VL and TR) and secondary dendrite spacing (λ2), respectively, in the machining cutting temperature and tool wear on the neckin
Externí odkaz:
https://doaj.org/article/082bea3825c145c0ab60ecfd15159635
Autor:
Clarissa Cruz, Adrina P. Silva, Antonio Luciano Seabra Moreira, Amauri Garcia, Noé Cheung, Otávio L. Rocha, André Barros
Publikováno v:
Corrosion Engineering, Science and Technology. 55:471-479
The combined effects of solidification microstructure refining scale and T6 heat treatment conditions on corrosion behaviour and Vickers microhardness of an Al–3 wt-% Cu–0.5 wt-% Mg alloy were stud...
Autor:
Marcelino Dias, Emmanuelle Sá Freitas, Thiago A. Costa, Amauri Garcia, Cássio A.P. Silva, Adrina P. Silva, Noé Cheung
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 105:1391-1410
Al-Si alloys are increasingly being employed in the aerospace industry, satellite bearings, and inertial navigation systems. Hypoeutectic compositions are more attractive because of the low material cost and excellent castability. The addition of all
Autor:
Adrina P. Silva, Otávio L. Rocha, Igor A. Magno, Jacson Malcher Nascimento, Marlo O. Costa, Thiago Costa, Fabrício A. Souza
Publikováno v:
Materials Science and Technology. 35:791-806
Horizontal directional solidification and precipitation hardening experiments were performed with the Al5.5Si3Cu alloy. Solidification thermal and microstructural parameters such as growth and cool...
Autor:
Adrina P. Silva, Regiane Socorro Barros, Camila Yuri Negrão Konno, A Moreira, Jacson Malcher Nascimento, Otávio Fernandes Lima da Rocha
Publikováno v:
Periódico Tchê Química. 16:860-874
In general, the binary monotectic alloys are characterized by the limited solubility in the liquid state, which gives them a benefited tribological behavior such as wear resistance. Researches regarding the development of monotectic alloy microstruct
Autor:
Adrina P. Silva, Noé Cheung, Amauri Garcia, André dos Santos Barros, Clarissa Cruz, Antonio Luciano Seabra Moreira, Otávio L. Rocha
Publikováno v:
Acta Metallurgica Sinica (English Letters). 32:695-709
In the present experimental investigation, Al–3 wt%Cu and Al–3 wt%Cu–0.5 wt%Mg alloys castings are produced by a horizontal solidification technique with a view to examining the interrelationship among growth rate (GR), cooling rate (CR), secon
Autor:
Adrina P. Silva, André dos Santos Barros, Otávio L. Rocha, M.N. Collyer, Antonio Luciano Seabra Moreira
Publikováno v:
Defect and Diffusion Forum. 379:133-139
In this paper, the Al-3wt.%Cu-0.5wt.%Mg alloy was grown by the transient horizontal directional solidification method in a water cooled stainless steel chill. A temperature monitoring system in the metal was used and the registered time-temperature d
Autor:
Fernando de Almeida Gonçalves, André dos Santos Barros, Otávio L. Rocha, Adrina P. Silva, Antonio Luciano Seabra Moreira, Eugênio C. Araújo, Rafael Hideo Lopes Kikuchi
Publikováno v:
Metallurgical and Materials Transactions A. 48:1163-1175
Horizontal directional solidification (HDS) experiments were carried out with Al-3wtpctCu, Al-3wtpctSi, and Al- 3wtpctCu-5.5wtpctSi alloys in order to analyze the interrelation between the secondary dendrite arm spacing (λ 2) and microhardness (HV).