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Trincamento induzido por hidrogênio em aços inoxidáveis supermartensíticos modificados pela ação de boro para aplicação em exploração de petróleo em águas profundas
(Universidade Federal de São Carlos, 2015-09-21)
The oil exploitation and production in deep water involves drilling risers with over 7 km deep. In this condition, the environments found in such wells are too adverse, acting under the exploration and production equipment, ...
Mecanismo de solidificação de ligas do sistema Al-Mn-Ce ricas em Al sob diferentes taxas de resfriamento
(Universidade Federal de São Carlos, 2015-07-07)
The aircraft industry search for light weight materials to produce lower density parts for increased energy efficiency of fuels was focused in recent years in searching new alloy systems with high mechanical strength and ...
Soldagem pontual por fricção (FSpW) de poliamida 6
(Universidade Federal de São Carlos, 2015-08-03)
Friction Spot Welding (FSpW) is an innovative technique developed and
patented in 2005 by the Helmholtz Zentrum Geesthacht (HZG) research center
in Germany. FSpW uses the friction between a rotating tool and the ...
Expansão por umidade de revestimentos cerâmicos : métodos de medida e variáveis envolvidas
(Universidade Federal de São Carlos, 2015-08-05)
The expansion by humidity (EPU) is characterized by the increase in the size of the ceramic body when in contact with water in liquid or vapor. The phenomenon can contribute to the development of severe pathologies in ...
Comportamento mecânico de poli(éter-éter-cetona) revestida com hidroxiapatita por aspersão plasma para uso em implantes cirúrgicos
(Universidade Federal de São Carlos, 2015-12-10)
The remarkable advances in scientific research of materials for ever demanding service requirements has led to novel developments of biomaterials, especially in the field of surgical implants. In this field, the semi-crystalline ...
Estudo das propriedades mecânicas do aço ao boro 50B35 com diferentes tamanhos de grãos
(Universidade Federal de São Carlos, 2015-07-22)
Boron steel has excellent hardenability due to the addition of small quantities of
boron. Boron atoms reduces the nucleation rate of ferrite and bainite [1]. It is
known that austenitizing temperature and time and cooling ...
Atomização e consolidação por fusão seletiva a laser da liga Cu-11,3Al-3,2Ni-3,0Mn-0,5Zr com efeito de memória de forma
(Universidade Federal de São Carlos, 2015-12-16)
The aim of the present work was the study of the viability of a manufacturing route of parts with the Cu-based Shape Memory Alloy (SMA) Cu- 11,3Al-3,2Ni-3Mn-0,5Zr through gas atomization followed by Selective Laser Melting ...
Efeitos das condições de queima e densidade aparente sobre a sobrequeima em porcelanatos
(Universidade Federal de São Carlos, 2015-08-05)
The phenomenon of overfiring manifests in porcelain tiles and other
products with high degree of vitrification, as a consequence of the expansion of
gases trapped in closed pores, in the final stages of sintering. When ...
Desvulcanização termomecânica contínua de borracha natural da banda de rodagem de pneus automotivos por meio do processo de extrusão em rosca dupla
(Universidade Federal de São Carlos, 2015-09-10)
The Natural rubber is a renewable source material widely used in the manufacture of automotive tire tread. The vulcanization results in a high thermodynamic stability and wide working range materials. However, after the ...
Calibração do modelo de Drucker-Prager/CAP para simulação numérica do processo de prensagem a frio de pós metálicos
(Universidade Federal de São Carlos, 2015-03-27)
An experimental procedure for the calibration of Drucker-Prager/Cap model, using
the digital image correlation technique, is presented. The elastic properties were
characterized by fitting stress vs. strain curves recorded ...