Api 5l X60 Steel
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Niobium and niobium-iron coatings on API 5LX 70 steel applied with HVOF
The present study aimed to create and characterize niobium and niobium-iron 60% coatings applied to steel API 5L X70 using the hypersonic thermal spray process (HVOF). The morphologies of the coatings were analyzed using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and profilometry, while the coatings' har
Mat. Res.. Publicado em: 27/06/2014
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2. Analysis of the corrosion scales formed on API 5L X70 and X80 steel pipe in the presence of CO2
Longitudinal welded joints samples of X70 and X80 API grade steel pipes were exposed to a deaerated 1% NaCl solution containing CO2, at temperatures in the range of 25 ºC to 80 ºC for 48 hours. Analogous samples were exposed to the adjacent vapour phase. The layer of corrosion products which formed on the base metal and welded regions of the samples was in
Mat. Res.. Publicado em: 08/11/2013
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3. Environmentally induced cracking of API grade steel in near-neutral pH soil
Environmentally induced cracking of pipeline steels in contact with soil have been investigated. Different soils were prepared in order to determine their physical, chemical and bacteriological characteristics. Slow strain rate testing was carried out by using electrolytes obtained from soil samples and NS4 standard solution. Stress vs. strain curves of API
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-06
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4. Microstructural characterization of a plate of microalloyed pipeline steel that conforms to API 5L X65 in different regions of the plate as rolled and after austenitization and continous cooling under different cooling rates. / Caracterização microestrutural do aço para tubo API 5L-X65 em diferentes regiões da chapa como laminada e após austenitização e resfriamento sob diversas taxas de resfriamento.
This work aims to characterize and compare the microstructures of different regions of a plate of microalloyed pipeline steel that conforms to API 5L X65, employed in the transportation of natural gas and oil, as received and after being subjected to heat treatments of austenitization and continuous cooling under different cooling rates. The steel under stud
Publicado em: 2009
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5. CURVAMENTO POR INDUÇÃO DE TUBO DA CLASSE API 5L X80 / INDUCTION HOT BENDING OF STEEL PIPE API 5L X80
Neste trabalho são apresentados os efeitos do processo de curvamento a quente por indução na microestrutura e nas propriedades mecânicas do tubo API 5L X80, fabricado pelo processo UOE, com chapa produzida através do processo de laminação controlada sem resfriamento acelerado. O curvamento foi realizado com aquecimento localizado, provocado por uma bo
Publicado em: 2005
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6. A METHODOLOGY OF THE ANALYSIS AND MODELING OF RESIDUAL STRESSES. / UMA METODOLOGIA PARA A ANÁLISE E MODELAGEM DE TENSÕES RESIDUAIS
Realizou-se uma completa avaliação das propriedades mecânicas e metalúrgicas do metal de base e do metal de solda para o material da classe API 5L X60. A caracterização das propriedades mecânicas monotônicas e à fadiga deste aço inclui ensaios de tração, de iniciação de trincas por fadiga (épsilonN), de propagação de trincas por fadiga (da/d
Publicado em: 2002