Influence of the carburization time on the structural and mechanical properties of XC20 steel - Archive ouverte HAL Access content directly
Journal Articles Materials Research Express Year : 2021

Influence of the carburization time on the structural and mechanical properties of XC20 steel

Abstract

This study focuses on the effect of carburization time on the structural and mechanical properties of low carbon XC20 mild steel (C. Wt.% <0.25). The XC20 steel was carburized with activated carbon with a carbon potential Cp1 = 1.1%, at 910 C at different carburization times of 2, 4 and 6 h. The results obtained show that XC20 steel (non-carburized) has a ferrite-pearlitic structure with a hardness and a Young's modulus of the order of (150 HV, 26 KN/mm2). After carburization, the structure of the carburized layer is transformed in martensite (Fe γ) in which cementite (Fe3C) is imbricated. The depth of the carburized layer and the amount of carbon on the surface gradually increase with increasing carburization time. In addition, the carburized XC20 steel becomes hard and brittle where the hardness and Young's modulus have been increased for a high holding time until reaching maximum values (845 HV, 48 KN mm-2) after 6 h of carburization . However, the toughness of XC20 steel has been reduced from 163 to 40 J cm-2.
Fichier principal
Vignette du fichier
PIMM_MRE_ABDENOUR_2021_OPENACCESS.pdf (1.78 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

hal-03356186 , version 1 (27-09-2021)

Identifiers

Cite

Saoudi Abdenour, Aissani Linda, Chahaoui Oualid, Bestandji Ali, Louafi Mohammed Salah, et al.. Influence of the carburization time on the structural and mechanical properties of XC20 steel. Materials Research Express, 2021, 8 (8), pp.085604. ⟨10.1088/2053-1591/ac1ece⟩. ⟨hal-03356186⟩
34 View
21 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More