Microestructuras producidas en la soldadura de unión de aceros para tuberías de gran diámetro

M. Salazar; H. J. Quesada; E. P. Asta

doi:10.3989/revmetalm.1998.v34.i6.814

Microstructure produced in the welding of steels for wide diameter pipes

Authors

M. Salazar Laboratorio de Metalografía. Dpto. de Mecánica Aplicada. Facultad de Ingeniería. Universidad Nacional del Comahue
H. J. Quesada Laboratorio de Metalografía. Dpto. de Mecánica Aplicada. Facultad de Ingeniería. Universidad Nacional del Comahue
E. P. Asta Universidad Tecnológica Nacional

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.i6.814

Keywords:

HSLA steels, Shielding metal are welding, Heat affected zone, Microstructure

Abstract

This is an evaluation of the microstructure in the heat affected zone (HAZ) of steel weldings used in pipe lines. The welding was made by shielding metal are welding. This is a welding process with multiple run and low heat input, however local brittle zones are present in the HAZ. These are originated by a complex mechanism that is influenced by welding parameters and chemical composition of the steel. The welding sequences that help to eliminate the local brittle zones are studied.

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Published

1998-12-30

How to Cite

Salazar, M., Quesada, H. J., & Asta, E. P. (1998). Microstructure produced in the welding of steels for wide diameter pipes. Revista De Metalurgia, 34(6), 469–475. https://doi.org/10.3989/revmetalm.1998.v34.i6.814

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Issue

Vol. 34 No. 6 (1998)

Section

Articles

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