Charpy impact toughness in all directions with respect to the rolling direction of API 5L X52 pipeline steel

G. Terán, S. Capula-Colindres, F. Chávez, J. C. Velázquez, E. Torres-Santillan, D. Angeles-Herrera, O. Goiz

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this study, the Charpy V-notch (CVN) values were investigated in all directions [longitudinal-transverse (L-T), T-L, short-transverse (S-T), T-S, L-S, S-L, and at 45°] with respect to the rolling direction (RD) of American Petroleum Institute (API) 5L X52 steel welded by electric resistance welding (ERW). In addition, the microstructures and fracture surfaces were examined by scanning electron microscopy (SEM). The Charpy specimens were machined according to ASTM E23 and tested at room temperature. The experimental results showed that the CVN values depended on the direction of the RD. Additionally, a fracture surface analysis performed with SEM showed fibrous fracture, dimples, and secondary cracks. Microstructures of ferrite and perlite were obtained, which are typical of X52 steel. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)1022-1027
Number of pages6
JournalMRS Advances
Volume7
Issue number33
DOIs
StatePublished - Dec 2022

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