Wear and electrochemical behaviour of Mg-Al intermetallic coating
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- Authors:
- LI, Y.-G
WEI, Y.-H
HOU, L.-F
GUO, C.-L
HAN, P.-J - Author Affiliations:
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
Lvliang College, Lishi 033000, China - Source:
- MagnesiumSurface engineering. 30(12):933-938
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- An erbium modified Mg17Al12 based coating was fabricated by hot press sintering on as extruded AZ61 Mg alloy. The Er modified coating was composed of Mg17Al12 and Al3Er phases. As a result of the presence of the dispersed Al3Er phase, the coating had a greater microhardness than Mg17Al12. Thermal effects of sintering at 400°C for 1 h caused no obvious deterioration in the wear resistance of the AZ61 Mg matrix. Electrochemical and wear resistance tests showed that the Er modified Mg17Al12 based coating had a lower corrosion current density and a lower friction coefficient than Mg17Al12, the AZ61 Mg matrix and a thermal diffusion coating (TDC). The superior wear resistance of the sintered coating resulted from the hard Al3Er phase. The corrosion resistance of the sintered coating was better than that of the TDC as a result of suppression of hydrogen evolution by the rare earth metal Er.
- Notes:
- Metals. Metallurgy
- Subjects:
- Metallurgy, welding
Métallurgie, soudage
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Metaux. Metallurgie
Metals. Metallurgy
Transformation de matériaux métalliques
Production techniques
Métallurgie des poudres. Matériaux composites
Powder metallurgy. Composite materials
Métaux et alliages frittés. Cermets
Sintered metals and alloys. Pseudo alloys. Cermets
Traitements de surface
Surface treatment
Corrosion
Action des agents de corrosion
Corrosion environments
Propriétés mécaniques. Rhéologie. Mécanique de la rupture. Tribologie
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Frottement. Usure
Contact of materials. Friction. Wear
Propriété mécanique
Mechanical properties
Propiedad mecánica
Composé intermétallique
Intermetallic compound
Compuesto intermetálico
Intermetallische Verbindung
Corrosion électrochimique
Electrochemical corrosion
Corrosión electroquímica
Elektrochemische Korrosion
Frittage
Sintering
Sinterización
Sintern
Microstructure
Microestructura
Mikrogefuege
Métallurgie poudre
Powder metallurgy
Metalurgia polvo
Pulvermetallurgie
Revêtement
Coatings
Revestimiento
Ueberzug
Traitement surface
Surface treatment
Tratamiento superficie
Oberflaechenbehandlung
Tribologie
Tribology
Tribología
Usure
Wear
Desgaste
Verschleiss
Corrosion
Intermetallics - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Magnesium
- Volume:
- 30
- Issue:
- 12
- Page Start:
- 933
- Page Count:
- 6
- ISSN:
- 02670844
- Publisher:
- London; London: Institute of Materials, Minerals and Mining, Maney, 2014.
- Document Type:
- Article
- Physical Description:
- print, 24 ref
