Effect of quenching and tempering on the mechanical properties and fracture behavior of a low-alloyed 0.2-0.3C steels

The mechanical properties of a two different low-alloyed steels with carbon content of 0.25C and 0.33C were investigated. The steels were subjected to conventional heat treatment consisting of water quenching and subsequent tempering. The scanning electron microscopy and electron backscatter diffrac...

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Bibliographic Details
Main Authors: Tkachev, E., Borisov, S., Pikina, A., Gaidar, S., Kaibyshev, R.
Format: Conference Proceeding
Language:English
Subjects:
Carbon content
Dimpling
Ductile fracture
Electron back scatter
Heat treatment
Low alloy steels
Mechanical properties
Quenching and tempering
Tempering
Water quenching
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Summary:The mechanical properties of a two different low-alloyed steels with carbon content of 0.25C and 0.33C were investigated. The steels were subjected to conventional heat treatment consisting of water quenching and subsequent tempering. The scanning electron microscopy and electron backscatter diffraction (EBSD) method were used to perform the fractographic examination and to investigate the quenched microstructures. The tempering at 280-400 °C improves the yield strength of both steels but more pronounced increase was observed in 0.33C steel. The fractographic analysis of the quenched steels showed mixed fracture mode with a mixture of cleavage facets and ductile dimples.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0163490