Search
Now showing items 31-40 of 264
Modificação e caracterização da superfície do aço inoxidável Martensítico AISI 410
(Universidade Federal de São Carlos, 2010-04-29)
This work deals about the surface modification of the AISI 410 martensitic stainless steel. The modification of steel surfaces is important for the improvement of its mechanical and tribological properties. Among the ...
Avaliação da corrosão intergranular de aços inoxidáveis por meio de normas e de ensaios eletroquímicos em altos potenciais
(Universidade Federal de São Carlos, 2011-04-04)
The corrosion resistance of stainless steels is given by the formation of a Cr2O3 film on the metal surface, inhibiting its contact with the aggressive medium. The sensitization that occurs in these steels at temperatures ...
Correlação entre os resultados de tração a quente e fluência para o cobre comercialmente puro
(Universidade Federal de São Carlos, 2011-03-11)
Hot tensile test data were correlated with creep data, in commercially pure copper, using a recently proposed criterion for the analysis of these two kinds of tests at high temperature. The criterion considers the equivalence ...
Estudo da solidificação do aço rápido M2 em diferentes lingotes e seus efeitos na microestrutura e propriedades mecânicas finais
(Universidade Federal de São Carlos, 2011-08-03)
The high speed steels are mostly applied in cutting tools, like drills, cores and top milling cutter. Its microstructure is composed by martensite, with high hardness, strong tempering resistance and disperses carbides on ...
Moagem de alta energia e deformação plástica severa do Mg e do Mg-Fe na síntese de hidretos para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2017-03-04)
Magnesium is a light metal with a relatively low cost. It can form magnesium hydride (MgH2), which is interesting for the safe storage of hydrogen in the solid state, thanks to its high gravimetric capacity of 7.6%. The ...
Comportamento mecânico em fadiga da liga de titânio beta metaestável Ti-5553
(Universidade Federal de São Carlos, 2016-10-14)
The microstructure of metastable beta Ti alloys is a decisive factor that
governs their properties and, therefore, the assessment of the relation between
the microstructure and the fatigue response means an advance in ...
Estudos qualitativos das transformações termodinâmicas ocorridas durante o processo pirometalúrgico de recuperação de Pb a partir de PbSO4
(Universidade Federal de São Carlos, 2013-08-01)
This study was carried out in order to gain a qualitative understanding of one of the fundamental processes of pyrometallurgical recovery of Pbfrom the inorganic scraps of lead-acid batteries by the reduction of PbSO4to ...
Abordagem termodinâmica do transporte iônico e da relaxação estrutural em vidros fosfatos de prata
(Universidade Federal de São Carlos, 2016-09-12)
Ionic conductivity in glasses was first discovered and demonstrated by
Warburg in 1884, but although it has been studied for over a century, the
mechanisms underlying ionic conduction in glasses are not yet entirely ...
Indicadores de patentes para o monitoramento tecnológico em aços para dutos utilizados em transporte de hidrocarbonetos
(Universidade Federal de São Carlos, 2016-08-05)
Most part of the hydrocarbons reserves used in the global energy matrix are far
from their main consumer markets. One of the most technically and
economically viable means for such transport is carrying it out ...
Estudo do processo de soldagem a ponto por fricção de juntas dissimilares entre ligas de alumínio e titânio
(Universidade Federal de São Carlos, 2016-12-09)
Multimaterial structures between aluminum and titanium alloys are a
technologically attractive field of research and their increasing use in the
transportation sector for weight and emission reduction is part of the ...