Influence of the carburization time on the structural and mechanical properties of XC20 steel - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Materials Research Express Année : 2021

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

Résumé

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
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

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

Identifiants

Citer

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 Consultations
21 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More