Surface performance and physical properties of nanoscale ceramics reinforced laser alloying composite coatings
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- Authors:
- JIANQUAN LI
HUASHI LIU
GUOZHONG LI - Author Affiliations:
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, Shandong, China
- Source:
- Composites. Part B, Engineering. 57:86-90
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- Si3N4-Ni60 is firstly used to improve the wear resistance of a TA7 (Ti-5Al-2.5Sn) titanium alloy surface by mean of a laser alloying (LA) technique. The synthesis of the hard composite coating on a TA7 titanium alloy by LA of Ni60-Si3N4 pre-placed powders was investigated by means of scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and high resolution transmission electron microscope (HRTEM). Experimental results indicated that a number of the interdendritic lamellar eutectics, nanoscale ceramics (NC) and the amorphous phases were produced in such LA coating. The production of NC led the free energy to enhance, which increased the density of point defect, leading to the formation of hypersaturated state of point defect, causing lattice distortions. Compared with a TA7 alloy substrate, an improvement of the wear resistance was obtained for such LA composite coating.
- Notes:
- Metals. Metallurgy
- Subjects:
- Chemical industry parachemical industry
Industrie chimique et parachimique
Mechanics acoustics
Mécanique et acoustique
Metallurgy, welding
Métallurgie, soudage
Polymers, paint and wood industries
Polymères, industries des peintures et bois
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Metaux. Metallurgie
Metals. Metallurgy
Transformation de matériaux métalliques
Production techniques
Traitements de surface
Surface treatment
Dépôt de métaux et d'alliages
Metallic coatings
Aluminium alliage
Aluminium alloy
Aluminio aleación
Aluminiumlegierung
Composite matrice métallique
Metal matrix composite
Compuesto matriz metalico
Céramique sans oxyde
Non oxide ceramics
Cerámica sin óxido
Etude expérimentale
Experimental study
Estudio experimental
Experimentelle Untersuchung
Laser
Láser
Matériau composite
Composite material
Material compuesto
Verbundwerkstoff
Matériau renforcé dispersion
Dispersion reinforced material
Material renforzado dispersión
Dispersionsgehaerteter Werkstoff
Matériau revêtement
Coating material
Material revestimiento
Morphologie
Morphology
Morfología
Nickel alliage
Nickel alloy
Níquel aleación
Nickellegierung
Nitrure de silicium
Silicon nitride
Silicio nitruro
Siliciumnitrid
Propriété mécanique
Mechanical properties
Propiedad mecánica
Préparation
Preparation
Preparación
Vorbereitung
Résistance usure
Wear resistance
Resistencia al desgaste
Verschleissfestigkeit
Titane alliage
Titanium alloy
Titanio aleación
Titanlegierung
Traitement surface
Surface treatment
Tratamiento superficie
Oberflaechenbehandlung
Tribologie
Tribology
Tribología
A. Intermetallics
A. Metal-matrix composites (MMCs)
B. Wear
D. Surface analysis - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Composites. Part B, Engineering
- Volume:
- 57
- Page Start:
- 86
- Page Count:
- 5
- ISSN:
- 13598368
- Publisher:
- Kidlington: Elsevier, 2014.
- Document Type:
- Article
- Physical Description:
- print, 22 ref
