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Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Mechanical properties and microstructure of SMAW welded and thermically treated HSLA-80 steel

2018; Elsevier BV; Volume: 7; Issue: 4 Linguagem: Inglês

10.1016/j.jmrt.2018.08.007

ISSN

2214-0697

Autores

Leandro de Jesus Jorge, Verônica Scarpini Cândido, Alisson Clay Rios da Silva, Fábio da Costa Garcia Filho, Artur Camposo Pereira, Fernanda Santos da Luz, Sérgio Neves Monteiro,

Tópico(s)

Hydrogen embrittlement and corrosion behaviors in metals

Resumo

This paper aims to present a comparison on the use of different heat treatment conditions in association with welding of a HSLA-80 steel. This investigation was carried out by multipass welding using the coated electrode process in different heat treatment conditions, with or without pre- or post-weld heating, in order to compare effects on the mechanical properties and microstructure for each condition. After welding was performed, procedures to identify microstructural phases and characterize the mechanical behavior were carried out. The results of mechanical tests and metallographic analysis were conclusive that heat treatments are not necessary to complement welding procedures of this steel. This is especially the case of the post-welding heat treatment. In fact, the application of these treatments did not significantly affect neither the microstructure nor the mechanical characteristics of the material.

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