Arc spraying of nano-structured wire on carbon steel: examination of coating microstructures
- School of Mechanical and Manufacturing Eng., DCU, Dublin (Ireland)
- Mechanical Eng. Dept., King Fahd University of Petroleum and Minerals, Dhahran (Saudi Arabia)
Arc spraying of nano-structured wire (TAFA 95MX) onto carbon steel is carried out. The workpieces coated were heat treated at temperature similar to the operating temperature of the hot-path components of power gas turbines. The morphological and microstructural changes in the coating are examined using optical and Scanning Electron Microscope (SEM). The surface roughness and microhardness of the resulting coatings are measured. It is found that the formation of dimples like structure at surface increased the surface roughness of the coating. The microhardness of the resulting coating is significantly higher than the base material hardness. Heat treatment does not alter the microstructure and microhardness of the coating.
- OSTI ID:
- 21510157
- Journal Information:
- AIP Conference Proceedings, Vol. 1315, Issue 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552379; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON STEELS
COATINGS
ELECTRIC ARCS
GAS TURBINES
HEAT TREATMENTS
MICROHARDNESS
MICROSTRUCTURE
NANOSTRUCTURES
ROUGHNESS
SCANNING ELECTRON MICROSCOPY
SURFACES
WIRES
ALLOYS
CARBON ADDITIONS
CURRENTS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRON MICROSCOPY
EQUIPMENT
HARDNESS
IRON ALLOYS
IRON BASE ALLOYS
MACHINERY
MECHANICAL PROPERTIES
MICROSCOPY
STEELS
SURFACE PROPERTIES
TRANSITION ELEMENT ALLOYS
TURBINES
TURBOMACHINERY