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Título
Tantalum Alloy Welding: Does the Thermal Cycle Influence the Microstructure?
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Applied Sciences
Número de la revista
3
Cita Bibliográfica
Bernardo Sánchez, A., Presno Vélez, Á., Fernández‐columbié, T., Rodríguez‐gonzalez, I., Suárez Torres, L., Álvarez de Prado, L., & Menéndez Fernández, M. (2022). Tantalum Alloy Welding: Does the Thermal Cycle Influence the Microstructure? Applied Sciences (Switzerland), 12(3). https://doi.org/10.3390/APP12031440
Editorial
MDPI
Fecha
2022-01-28
Resumen
[EN] The aim of the present work is to verify the microstructural behavior of a B 521 tantalum alloy UNS Grade R05200 after welding, in relation to the welding thermal cycle. The joint design was a 1.5 mm thickness circumferential butt welding, on a 32 mm outside diameter pipe, welded in 1 G position (horizontal, flat, and rotating). The chosen welding process was gas tungsten arc welding (GTAW). The microstructural analysis showed the presence of coarse, dendritic-columnar structures, as well as a hexagonal cell, with no cracks noted. Hardness tests showed an increase in hardness, from 120 HV to 425 HV, in the heat-affected zone. Through finite element methods, the behavior of the temperature field was estimated and compared.
Materia
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SI
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