Elaboration and Characterisation of In-Situ Metal Matrix Composites

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Titre:	Elaboration and Characterisation of In-Situ Metal Matrix Composites
Auteur(s):	BOUCHIBANE, Chams Eddine Gharbi, Mohamed Abderraouf MESSAOUI, Ismail
Mots-clés:	Composite, max phase, dry sliding, optical microscopy, sintering, tribometer, reinforcement
Date de publication:	2021
Editeur:	Univ Blida1
Résumé:	In this study, we report on the microstructure and tribological characterization of in-situ modified M50 steel synthesized by in-situ reaction of Maxthal211 (Ti2AlC-Ti3AlC2, MAX phase). The composite was elaborated from 5, 10, 15 and 20wt% of the MAX phase which fully reacted with M50 matrix at 1050 °C sintering temperature for 4 h; the MAX phase decomposed into TiC, and the released Al and Ti atoms diffused in M50 matrix. Optical Microscopy was used to study the different microstructures and worn surface characteristics. Dry sliding properties of the composite under different normal loads were studied using a ball-on-disc Tribometer. Addition of 20 wt% MAX phase procured the highest hardness (63.083 HV5) which is about two times higher than that of pure modified M50 steel. Whereas all the reinforced composites exhibited better wear resistance
Description:	531.676 ; 54 p
URI/URL:	http://di.univ-blida.dz:8080/jspui/handle/123456789/13690
Collection(s) :	Mémoires de Master

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