Macrotexture
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Estudo comparativo da estampabilidade da liga de aluminio AA1050 partindo de placas obtidas por vazamento direto e bobinas obtidas por vazamento contínuo. / Comparative study of the deep drawing alloy AA1050 from plates obtained by direct casting and coils obtained by continuos casting.
Stampability of aluminum alloys is a subject of interest to several industrial sectors because they are largely used in the fabrication of several parts and components. The choice is based upon the stampability and the relative manufacturing capability in relation to other aluminum alloys that contain larger amounts of alloying elements and, consequently, hi
Publicado em: 2010
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2. Texture analysis of deformation induced martensite in an AISI 301L stainless steel: microtexture and macrotexture aspects
Experiments have been conducted to study the strain induced transformation from austenite to martensite in a metastable AISI 301LN austenitic stainless steel, deformed by uniaxial tension applied along rolling direction. Samples deformed 10 and 20% have shown the presence of α´ martensite phase. Measured pole figures of martensite phase were compared to ca
Materials Research. Publicado em: 2009-09
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3. Caracterizações de propriedades microestruturais e mecânicas de ligas AA 1100 e AA 5052 processadas pela técnica de laminação acumulativa ("Accumulated Roll Bonding - ARB"). / Characterization of microestrutural and mechanical properties from AA1100 and AA5052 alloys that were processed by Accumulated Roll Bonding - ARB.
The present work is related to the production, in a laboratory scale, of a metallic microstructure having a grain size smaller than one micrometer, through the Accumulated Roll Bonding technique(ARB), for two different aluminum alloys, namely AA 1100 and AA 5052. The strips obtained by the ARB technique have been characterized by their mechanical properties
Publicado em: 2009
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4. Proposição De Estratégias De Manutenção De Pavimentos Aeroportuários Baseadas Na Macrotextura E No Atrito: Estudo De Caso Do Aeroporto Internacional De Fortaleza / Propose An Airport Pavement Maintenance Strategies Based On Macrotexture And Friction: Case Study Of Fortaleza International Airport
O funcionamento integral de um complexo aeroportuário depende necessariamente da adequada condição operacional da infraestrutura relacionada à movimentação das aeronaves em solo, ou seja, dos pavimentos das pistas de pousos e de decolagens, das pistas de taxiamento e dos pátios de manobras. A precariedade, a ineficiência ou a inexistência dessas fac
Publicado em: 2009
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5. InfluÃncia do Resfriamento sub-zero apÃs o Envelhecimento na FormaÃÃo de Austenita Revertida em um AÃo Maraging 350 / Influence of sub-zero cooling after the formation of austenite on Aging Reversed in a maraging steel 350
Maraging steels are materials of ultra high strength mainly composed of a base quaternary Ni-Co-Mo-Ti which have excellent toughness combined with high mechanical strength being used in war industry, nuclear, aircraft components, pressure vessels up to the sports industry . One of its important applications is in use in hysteresis motors which require materi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/09/2008
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6. Classificação da aderência pneu-pavimento pelo índice combinado IFI - Internacional Friction Index para revestimentos asfálticos. / Adherence tire-asphalt through the classification index IFI - International Friction Index to Asphalt Pavements.
The characterization of the macrotexture and microtexture of asphalt pavements surfaces can be obtained by means of different types of equipment presenting different characteristics. The results of the essays obtained by these different equipment were compared and harmonized by an ample research developed by PIARC (Permanent International Association of Road
Publicado em: 2006
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7. Estudo em laboratório e em campo de misturas asfálticas SMA 0/8S. / Study in laboratory and field of asphalt mixtures SMA 0/8S.
Esta pesquisa foi baseada em um projeto de Stone Matrix Asphalt - SMA na faixa 0/8S com asfalto CAP 20, feito para a execução de revestimento delgado em trecho experimental na Rodovia Presidente Dutra, ligando São Paulo ao Rio de Janeiro. A ocorrência de alguns defeitos neste trecho experimental motivou o estudo de misturas SMA 0/8S alternativas empregan
Publicado em: 2005
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8. Evolução da microestrutura e da textura durante o processamento de chapas da liga Al-Mn-Fe-Si (3003) produzidas por lingotamento contínuo: um estudo comparativo com o processo semi-contínuo. / Microstructure and texture evolution of the Al-Mn-Fe-Si (3003) aluminum alloy produced from continuous casting process: comparative analysis with semi-continuous casting process.
The main reason for the development of this PhD Thesis was to compare the microstructures and textures of the 3003 aluminum alloy produced from continuous and semi-continuous casting processes. The roll caster process (continuous casting) has been increasingly used in the aluminum industry. Products usually obtained by means of heavy rolling operations in th
Publicado em: 2005