Micro Tensile Test
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Caracterização Mecânica da Região Soldada de Tailor Welded Blanks (TWB) a Partir do Perfil de Microdureza
Resumo No Tailor Welded Blank (TWB) são soldadas chapas de especificações distintas, antes da conformação. Sua caracterização, na região soldada, por métodos convencionais de tração, pode ser dificultada pelo estreito comprimento da solda. Novas metodologias e alternativas são analisadas. Este trabalho visou caracterizar mecanicamente a região s
Soldag. insp.. Publicado em: 02/12/2019
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2. Evaluation of the stiffening mechanism based on micro-sized particle inclusions in laminated composites
Rigid particles have been incorporated into laminated composites, especially to enhance their bending performance attributed to the stiffening of the matrix phase (i) and the increased interlaminar shear resistance (ii). In order to better evaluate the improvement mechanism provided by the particulate inclusions, this work investigates the incorporation of m
Mat. Res.. Publicado em: 17/10/2019
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3. Estudo dos Parâmetros de União por Difusão do Aço Inoxidável AISI 316L
Resumo A união por difusão é uma técnica de união no estado sólido capaz de ligar dois materiais metálicos por meio da difusão atômica na interface de contato, sem o uso de metal de adição. Este processo é adequado para a união de grandes áreas com uma alta resistência mecânica, permitindo ao equipamento operar com elevadas pressões de traba
Soldag. insp.. Publicado em: 16/05/2019
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4. Effect of Process Parameters on Microstructure and Mechanical Properties of Friction Stir Welded Cast Nickel Aluminum Bronze Alloy (C95800)
In the present study, Friction Stir Welding (FSW) of Nickel Aluminum Bronze (NAB) alloy was carried out by varying the axial load, rotation speed and welding speed rate. Micro-structural analyses of these samples revealed the different grain sizes and shapes of the various zones. Hardness and tensile strength tests were carried out for the samples welded at
Mat. Res.. Publicado em: 24/05/2018
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5. Effect on adhesion of a nanocapsules-loaded adhesive system
Abstract This study aimed to evaluate the in situ degree of conversion, contact angle, and immediate and long-term bond strengths of a commercial primer and an experimental adhesive containing indomethacin- and triclosan-loaded nanocapsules (NCs). The indomethacin- and triclosan-loaded NCs, which promote anti-inflammatory and antibacterial effects through co
Braz. oral res.. Publicado em: 01/02/2018
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6. Caracterización de semielaborados de aleaciones de titanio procesadas por extrusión y laminación perforación (proceso Mannesmann)
ABSTRACTFor the manufacture of seamless pipes and tubes are used, as raw materials, hollow bars from hot deformation processes like extrusion and rotary tube piercing (Mannesmann process). Starting from these semi-elaborated products and by means of successive cross sections reductions through tube drawing or tube rolling (cold pilgering) the requested final
Matéria (Rio J.). Publicado em: 2015-09
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7. EFEITO DA FOTOATIVAÇÃO PROLONGADA DE ADESIVOS AUTOCONDICIONANTES NA ADESÃO À DENTINA / Effect of prolonged exposure time of one-step self-etching in dentinbonding
This study evaluated the effect of prolonged exposure times on immediate (IM) and 6-month (6M) adhesive properties: degree of conversion within hybrid layer (DC), silver nitrate uptake (SNU) and resin-dentin bond strenght (μTBS) for three one-step self-etch adhesive systems (Adper Easy Bond [EB], Clearfil S3 Bond [CS3] and Go [GO]).Ninety caries-free ex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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8. The effect of electric spot-welding on the mechanical properties of different orthodontic wire alloys
The aim of this study was to test the hypothesis that there is a direct relationship between surface structure and tensile strength of orthodontic alloys submitted to different levels of welding current. Three types of alloys were assessed. One hundred and eight cross-sectional test specimens ("X") were made, 18 for each wire combination, and divided into 6
Materials Research. Publicado em: 29/05/2012
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9. Resistência de união de materiais resinosos de baixa viscosidade em lesões incipientes de cárie em esmalte / Bond strength of experimental low viscosity resin materials in initial enamel caries
Infiltration of enamel-like initial caries lesions with low viscosity resins (infiltrants) seems to be a promising approach in dentistry and it have showed advantages regarding to remineralization or invasive treatments. In this way, material must penetrate and seal lesions intake, reinforcing carious structure and eventually avoiding lesion progression, wit
Publicado em: 2011
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10. Estudo de fibra alternativa de escória de alto-forno como reforço em matrizes cimentícias / Study of alternative blast furnace slag fiber as reinforcement in cementitious matrices
Waste generated in various industries have been utilized in the production of materials seeking to reduce the environmental impact. In the field of fibers, alternative materials have been produced in greater quantity and gaining prominence in the manufacture of composites more environmentally appropriate. Among these products is of blast furnace slag fiber,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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11. Estudo da fluência em vigas de concreto reforçado com fibras de aço, com aplicação de conceitos da mecânica da fratura / Creep analysis of steel fiber reinforced concrete based on beam tests and fracture mechanics concepts
Despite of the well known advantages of steel fiber addition to concrete (SFRC), especially the toughness improvement, only a few number of studies has been developed about creep on these composites. The main purpose of this research is to investigate the feasibility and inherent difficulties related to a particular creep evaluation method. This method is ba
Publicado em: 2008
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12. Análise mecânica e microestrutural das ligas de cobalto-cromo de uso odontológico após sucessivas refundições
The cobalt-chromium alloy is extensively used in the Odontology for the confection of metallic scaffolding in partial removable denture. During the last few years, it has been reported an increasing number of premature imperfections, with a few months of prosthesis use. The manufacture of these components is made in prosthetic laboratories and normally invol
Publicado em: 2008