Resistance Weld
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. Effect of Welding Parameters on Nanostructured Fe-(C, B)-(Cr, Nb) Alloys
New nanostructured Fe-(Nb,Cr)-(C,B) multicomponent alloys have been developed for hardfacing application. They have better wear resistance than traditional Fe-Cr-C alloys. The nano-alpha-Fe, eutectic and hard carboborides phases of the weld metal usually show variations with the welding procedure. 6 test samples with different heat input were welded. It was
Mat. Res.. Publicado em: 20/01/2020
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2. Analysis of Residual Stress by the Hole-Drilling Method and Hardness in Dissimilar Joints of Austenitic Stainless Steel AISI 316L and Inconel 718 Alloy by Autogenous GTAW Process
Stainless steel and nickel alloy have high corrosion resistance in high-temperature environments due to the high Cr content present in their chemical composition, being widely used in components of nuclear reactors, petrochemical industries, etc. Through proper processes and procedures, it becomes possible to join these alloys. However, this union can genera
Mat. Res.. Publicado em: 02/12/2019
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3. Resistência à Corrosão de Juntas Dissimilares dos Aços AISI 316L e da Liga Inconel 718
Resumo A soldagem dissimilar (Dissimilar Metal Welds – DMWs), união de dois diferentes materiais metálicos, tem muitas aplicações industriais, com destaque para trocadores de calor nas usinas nucleares. Portanto, devem resistir à corrosão e a esforços mecânicos, entre outros requisitos. Neste trabalho foi abordada a susceptibilidade à corrosão d
Soldag. insp.. Publicado em: 21/10/2019
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4. Phase Separation and Development of the Microstructure for Stainless Steel to Copper Alloy Weld Joints Using a Fiber Laser
ABSTRACT Stainless steel and copper alloys joints are often applied in aerospace, marine and power industries where both high thermal and electrical conductivity (Cu) and corrosion resistance (steel) are required. In the aerospace industry, in particular for the combustion chamber of rocket engines, copper and steel combinations offer perfect materials selec
J. Aerosp. Technol. Manag.. Publicado em: 10/10/2019
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5. Corrosion Behavior of 316L and Alloy 182 Dissimilar Weld Joint with Post-Weld Heat Treatment
ABSTRACT Austenitic stainless steel and nickel-base alloys welds are widely used in nuclear reactor components, plants of energy generation, chemical, and petrochemical industries, due to their high corrosion resistance. The post weld heat treatments (PWHT) are generally applied to welding in order to relieve the welding residual stress. The aim of this work
Matéria (Rio J.). Publicado em: 16/09/2019
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6. Efeito do metal de adição na resistência ao desgaste por deslizamento de um aço estrutural soldado por GMAW
RESUMO O objetivo do presente trabalho foi avaliar o efeito do metal de adição na soldagem, e das microestruturas resultantes, na resistência ao desgaste de juntas soldadas de um aço estrutural ASTM A242, que possui resistência à corrosão atmosférica e é utilizado na fabricação de vagões destinados ao transporte de minério. As amostras foram sol
Matéria (Rio J.). Publicado em: 16/09/2019
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7. Effect of Nitrogen Addition to Shielding Gas on Cooling Rates and in the Microstructure of Thin Sheets of Duplex Stainless Steel Welded by Pulsed Gas Tungsten Arc Welding Process
The effect of the nitrogen content in the shielding gas and its effect on temperature distributions at the welded zone of thin sheets of duplex stainless steel have been evaluated. The duplex stainless steels have many features due to unique microstructural combination of austenite and ferrite grains. The phase balance can be easily shifted depending on the
Mat. Res.. Publicado em: 26/08/2019
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8. Performance of the INCONEL 625 alloy weld overlay obtained by FCAW process
ABSTRACT Nickel-based weld overlays (cladding) are commonly used in oil & gas industry to extend the life of equipment under corrosive environment, as it improves the corrosion resistance without a significant increase in the manufacturing cost, when compared to a full nickel-based alloy equipment. Although there are extensive literature involving overlays a
Matéria (Rio J.). Publicado em: 20/05/2019
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9. Avaliação da Adição de Ti, Nb e (Ti+Nb) na Microestrutura e Susceptibilidade à Sensitização de Aços Inoxidáveis Ferríticos Submetidos à Soldagem TIG
Resumo Neste estudo, a microestrutura e a resistência à corrosão intergranular de aços inoxidáveis ferríticos com adições de Nb, Ti e (Ti+Nb) submetidos à soldagem TIG foram investigadas. A caracterização estrutural dos cordões de solda foi realizada através de microscopias óptica (MO) e eletrônica de varredura (MEV) e espectroscopia por energ
Soldag. insp.. Publicado em: 16/05/2019
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10. Nickel-Titanium Alloys Welding of Thin Sheets Using GTAW: Comparative Study Between Similar and Dissimilar Welding with AISI 304 Stainless Steel
The objective of the present work was to evaluate welding of thin sheets (thickness < 1 mm) of similar and dissimilar NiTi alloys with AISI 304 stainless steel using the Gas Tungsten Arc Welding (GTAW) process and to study the mechanical and metallurgical properties of the joints with and without post-welding heat treatment (PWHT). The GTAW process was chose
Mat. Res.. Publicado em: 08/11/2018
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11. Evolución microestructural in-situ a alta temperatura de depósitos de soldadura de aceros 9Cr con diferentes contenidos de boro
ABSTRACT New alloys have been developed for enhancing the performance of the equipment used in thermoelectric power generation industry. With the objective of increasing the creep resistance of these materials, changes in the content of some microalloying elements were carried out. Boron bearing in creep strength enhanced 9Cr steel (CSE9Cr) welds improved ma
Matéria (Rio J.). Publicado em: 19/07/2018
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12. Comportamiento frente a la corrosión de uniones soldadas por fricción agitación de AA7075-T651: Evaluación galvánica
ABSTRACT Friction Stir Welding (FSW) is a novel solid-phase welding process, which has proved to have a great potential for the realization of welded joints in materials with poor weldability such as heat-treatable aluminum alloys. The aerospace industry has incorporated this process for the manufacture of structural elements, using known high strength alloy
Matéria (Rio J.). Publicado em: 19/07/2018