Low Carbon Steel Alloy
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Efecto de los parámetros de aplicación en recubrimientos de Ni-Cr-B-Fe-Si obtenidos por Flame Spray
ABSTRACT Surface damage of components in service is an issue of great industrial interest because of the costs associated to the replacement of certain critical components. There are several techniques to generate coatings, which provide increased resistance to a particular type of surface damage. In this way, it is achieved surface protection to different s
Matéria (Rio J.). Publicado em: 02/08/2018
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2. Influence of Austenitizing on the Mechanical Properties of Maraging 300 and Sae 4340 Steels - Comparative Study
Maraging steels with 18wt%Ni and 10wt%Co are precipitation hardenable steels selected for special applications. These steels are quenched and aged in the 480 - 600ºC range. Ti and Mo are added to precipitate during aging as fine Ni3(Ti,Mo) and Fe2Mo particles. Aging at high temperatures causes overaging due to coarsening of particles and austenite formation
Mat. Res.. Publicado em: 02/05/2017
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3. Comportamiento Tribológico y Microestructural en Recubrimientos Aplicados por GTAW y HVOF (Proceso Térmico de Espreado) y Usado en Recuperación de Aceros Grado Herramienta AISI/SAE D2
Abstract The Fe-Cr-Mo alloys are use in covers to protect the components that are under wear and corrosion. The high velocity thermo spray covering by HVOF (high velocity oxi-fuel) in Fe-Cr-Mo alloys has reported as a good result in projection fields for the steel tool grade for cold work. The HOVF is an attractive method to apply covering and recuperate dia
Soldag. insp.. Publicado em: 2016-06
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4. Second phase precipitation in ultrafine-grained ferrite steel
Grain size refinement is one of the most efficient strengthening mechanisms applied to modern High-Strength Low-Alloy steels (HSLA) because yield strength and toughness are both improved. This paper discusses the distribution of carbides by using transmission electron microscopy (TEM) in a low-carbon steel with ultrafine grained (UFG) ferrite. Fine cementite
Mat. Res.. Publicado em: 06/12/2013
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5. Microstructure and tribological properties of cobalt-based Stellite 6 alloy coating by electro-spark deposition
The cobalt-based Stellite 6 coating with a thickness of 0.5 mm was deposited onto 45 carbon steel by electro-spark deposition technology. Microstructure, chemical composition, phase composition, microhardness distribution and wear resistance of the coating were researched by a series of experiments. The results indicate that, the coating with refined and com
Mat. Res.. Publicado em: 28/05/2013
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6. Estudo do comportamento termomecânico e análise da formação de orientações preferenciais de aços com 6,5% Si conformados por spray / Thermomechanical behavior and texture analysis in Spray formed 6.5% si-carbon steels
Termomechanical behavior of spray formed 6.5% Si-Carbon steels were analyzed by physical simulation, through torsion tests, and the evolution of preferential orientation were analyzed in order to electrical devices. Low carbon steel was used in spray forming, and the parameters were changed in order to minimize porosity. The carbon content in Specimens influ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2012
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7. Electrochemical corrosion behavior of X52 and X60 steels in carbon dioxide containing saltwater solution
X52 and X60 high strength low alloy (HSLA) steels are widely used in the construction of petroleum pipelines. This paper discusses the corrosion resistance of X52 and X60 steels in CO2 containing saltwater at pH 4.4 and 50 ºC. A circulating flow loop system inside an autoclave was used for conducting the experimental work. The rotating impeller speed was 20
Mat. Res.. Publicado em: 04/12/2012
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8. Study on microstructures and work hardening behavior of ferrite-martensite dual-phase steels with high-content martensite
A kind of medium-carbon low-alloy dual-phase steels with high-content martensite produced by intercritical annealing at 785-830 ºC for 10-50 minutes were studied in aspect of microstructures and work hardening behavior using SEM and tensile testing machine. The experimental results showed that the work hardening of the studied steels obeyed the two-stage wo
Mat. Res.. Publicado em: 25/09/2012
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9. Avaliação metalúrgica e mecânica de aços cementados e temperados de forma convencional e intensiva
Steels treated through carburizing, quenching and tempering are broadly used in components that need to have hardness and superficial mechanical resistance together with a good toughness at the core of the component. Intensive quenching is a method that presents some advantages, such as the possibility of avoiding cracking due to extreme cooling, the increas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. Fracture Toughness (K1C) evaluation for dual phase medium carbon low alloy steels using circumferential notched tensile (CNT) specimens
The fracture behavior of dual phase medium carbon low alloy steels produced using two different chemical compositions (A - 0.34C, 0.75Mn, 0.12Cr, 0.13Ni steel and B - 0.3C, 0.97Mn, 0.15Cr steel) was investigated using circumferential notched tensile (CNT) specimens. Intercritical treatments were performed on samples with composition A by 1) austenitizing at
Materials Research. Publicado em: 20/05/2011
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11. Influence of tempered microstructures on the transformation behaviour of cold deformed and intercritically annealed medium carbon low alloy steel
This research is focused on understanding the role of microstructural variables and processing parameters in obtaining optimised dual phase structures in medium carbon low alloy steels. Tempered Martensite structures produced at 300, 500, and 650 °C, were cold rolled to varied degrees ranging from 20 to 80% deformation. Intercritical annealing was then perf
Materials Research. Publicado em: 2010-06
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12. Estudo sobre o pick-up de nitrogênio após a etapa de refino primário do aço
With the growing need of high quality steel there is a great demand for the development and production of steels with ever stringent chemical composition restrictions. For instance the presence of carbon and nitrogen in Interstitial Free steels for automobile industry. These restrictions are defined by the final application to which the product is destined.
Publicado em: 2010