Titre :

Outstanding cavitation erosion resistance of Ultra High Molecular Weight Polyethylene (UHMWPE) coatings

Auteur(s) :

Deplancke, Tiana [Auteur]
Matériaux, ingénierie et science [Villeurbanne] [MATEIS]
Lame, Olivier [Auteur]
Matériaux, ingénierie et science [Villeurbanne] [MATEIS]
Cavaillé, Jean-Yves [Auteur]
Matériaux, ingénierie et science [Villeurbanne] [MATEIS]
Fivel, Marc [Auteur]
Science et Ingénierie des Matériaux et Procédés [SIMaP]
Riondet, Michel [Auteur]
Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] [LEGI]
Franc, Jean-Pierre [Auteur]
Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] [LEGI]

Titre de la revue :

Wear

Numéro :

328-329

Pagination :

301-308

Date de publication :

2015

Discipline(s) HAL :

Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

The resistance to cavitation erosion of Ultra High Molecular Weight Polyethylene (UHMWPE) coatings with two molecular weight 0.6 and 10.5 Mg/mol was tested in a hydrodynamic tunnel during 98 h at a flow velocity of about ...
Lire la suite >The resistance to cavitation erosion of Ultra High Molecular Weight Polyethylene (UHMWPE) coatings with two molecular weight 0.6 and 10.5 Mg/mol was tested in a hydrodynamic tunnel during 98 h at a flow velocity of about 90 m/s. This polymer is known to have an excellent wear resistance. These materials were processed by sintering on a metallic substrate textured by electron beam melting to ensure mechanical interlocking. UHMWPE with molecular weight 10.5 Mg/mol has an exceptional resistance to cavitation erosion superior to that of stainless steel A2205 whereas UHMWPE with molecular weight 0.6 Mg/mol has a resistance to cavitation erosion similar to that of a conventional Nickel Aluminum Bronze alloy (in term of erosion depth). Two possible explanations are put forward for the good cavitation resistance of UHMWPE with highest molecular weight: the tensile test in semi-crystalline state shows no strain localization and, above melting temperature, the disentanglement of UHMWPE with molecular weight 10.5 Mg/mol is very slow unlike the UHMWPE with molecular weight 0.6 Mg/mol which tends to flow.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
ENSCL
INRA

Collections :

• Autres travaux scientifiques

Date de dépôt :

2019-05-17T09:25:24Z
2020-02-27T14:18:50Z