publication . Article . 2019

Study of the high temperature oxidation and Kirkendall porosity in dissimilar welding joints between FE-CR-AL alloy and stainless steel AISI 310 after isothermal heat treatment at 1150°C in air

André de Albuquerque Vicente; Joao Roberto Sartori Moreno; Denise Crocce Romano Espinosa; Tiago Felipe de Abreu Santos; Jorge Alberto Soares Tenório;
Open Access English
  • Published: 01 Apr 2019 Journal: Journal of Materials Research and Technology (issn: 2238-7854, Copyright policy)
  • Publisher: Elsevier
Abstract
Dissimilar welded joints of Fe-Cr-Al alloy (23Cr-7Al) and AISI 310 austenitic stainless steel (25Cr-20Ni) were studied and characterized, before and after the isothermal heat treatment (IHT) of oxidation at 1150 °C for 936 h in air. The Fe-Cr-Al alloy was used as the welding consumable and the welding process used was gas-shielded tungsten arc welding (GTAW) with currents of 60, 80 and 130 amps, and welding speed 1, 1.1 and 1.3 mm/s. In the heat treated specimens, pore formation was observed as well as significant variations of Al contents in all-welded metals and formation of protective layer of alumina-Al2O3 on the oxidized surfaces particularly in the sample ...
Subjects
free text keywords: Mining engineering. Metallurgy, TN1-997, Austenitic stainless steel, engineering.material, engineering, Kirkendall effect, Arc welding, law.invention, law, Gas tungsten arc welding, Alloy, Materials science, Metallurgy, Tungsten, chemistry.chemical_element, chemistry, Isothermal process, Welding
Related Organizations
Powered by OpenAIRE Open Research Graph
Any information missing or wrong?Report an Issue
publication . Article . 2019

Study of the high temperature oxidation and Kirkendall porosity in dissimilar welding joints between FE-CR-AL alloy and stainless steel AISI 310 after isothermal heat treatment at 1150°C in air

André de Albuquerque Vicente; Joao Roberto Sartori Moreno; Denise Crocce Romano Espinosa; Tiago Felipe de Abreu Santos; Jorge Alberto Soares Tenório;