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Influência das condições de eletrodeposição sobre a resistência a corrosão, susceptibilidade à fragilização por hidrogênio e à corrosão sob tensão do aço ABNT – 4340 revestido com liga Zn/Ni
(Universidade Federal de São Carlos, 2011-01-28)
Zinc-nickel alloys were electrodeposited on ABNT 4340 high strength steel in chloride acid media. The effect of the electrolyte composition and electroplating conditions on cathodic efficiency, chemical composition, ...
Estudo da influência de argilitos e feldspatóides em composições de porcelanato
(Universidade Federal de São Carlos, 2011-03-03)
Considering the various types of ceramic tiles used today, the stoneware tile is distinguished by its aesthetic and technical characteristics, such as: very low water absorption (less than 0.5%), high mechanical strength, ...
Avaliação da resistência ao desgaste de aços inoxidáveis conformados por spray
(Universidade Federal de São Carlos, 2011-08-03)
The aim of this work was the study of the microstructure and the wear resistance of two stainless steels, the ferritic-AIF with 27% Cr and the superduplex-SDM modified with boron (3.5% wt.), processed by spray forming. The ...
Estudo da influência da camada de engobe sobre a curvatura central de revestimentos cerâmicos
(Universidade Federal de São Carlos, 2011-12-05)
Given the importance of planarity of the tiles for covering of floor and walls, this work aims to identify the influence of engobe layer on the behavior of central curvature, and from then on, allowing a greater understanding ...
Cerâmicas refratárias resinadas: fundamentos, análise crítica e efeito dos agentes grafitizantes e antioxidantes
(Universidade Federal de São Carlos, 2011-08-30)
Improvements on carbon containing refractories are synonymous of benefits for the entire steel industry. In the last years, two particular developments deserve to be highlighted: (i) the report of additives able to graphitize ...
Nanotecnologia: indicadores tecnológicos sobre os avanços em materiais a partir da análise de documentos de patentes
(Universidade Federal de São Carlos, 2011-09-19)
Nanotechnology is a technological advance of several fields, regarded to be emergent, universal and diffuse field, involving mainly the development of nanomaterials, which can show different properties and behaviors. The ...
Influência da adição de um fundente sintético no mecanismo de coloração final de revestimentos cerâmicos
(Universidade Federal de São Carlos, 2011-08-12)
The presence of iron oxide in ceramic tile mass contributes to the reddish color firing of the products leading to a lower aggregate value, not to be regarded as a "noble" ceramic. However, the use of raw materials with ...
Produção de recobrimentos metálicos a partir de ligas de ferro amorfizáveis
(Universidade Federal de São Carlos, 2011-10-23)
The aim of this work was to study the production of metal coatings from amorphous alloy Fe-25Cr-7Ni-4,5B (wt.%), with special focus on mechanical and microstructure properties. Initially, preliminary studies were made ...
Novas ligas formadoras de fase amorfa do sistema Ni-Nb-Zr e seu comportamento mecânico
(Universidade Federal de São Carlos, 2011-04-15)
Ni-based amorphizable alloys in the bulk form show a good combination of properties, with high mechanical strength and hardness, good ductility and excellent corrosion resistance. These alloys have been used in recent ...
Caracterização da resistência à corrosão de ligas inoxidáveis Fe-Mn-Si-Cr-Ni-(Co) com efeito de memória de forma
(Universidade Federal de São Carlos, 2011-03-03)
In this work, the corrosion behavior of three Fe-Mn-Si-Cr-Ni (Co) shape memory stainless steels (SMSS) in aggressive environments was characterized. The electrochemical corrosion behavior in 0.5 M H2SO4 solution was obtained ...