Apr, 2016
Formation of Nano-Microstructured Aluminum Alloy Film Using Thermal Spray Gun with Ultra Rapid Cooling
MATERIALS TRANSACTIONS
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- Volume
- 57
- Number
- 4
- First page
- 488
- Last page
- 493
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.2320/matertrans.M2015392
- Publisher
- JAPAN INST METALS
A new thermal spray gun for nitrogen gas cooling and mist cooling has been developed. Aluminum-magnesium alloy films prepared by nitrogen gas cooling using the thermal spray gun had a partial nano microstructure because residual strains induced by rapid cooling acted as solid nuclei and a small amount of the amorphous phase became crystalline as a result of the heat of the thermal spray. Furthermore, the nano-microstructured aluminum magnesium films exhibited high corrosion resistance. Moreover, aluminum-magnesium alloy films containing a small amount of titanium prepared by mist gas cooling exhibited higher corrosion resistance than those without titanium. We consider that the aluminum -titanium compound acted as solid nuclei during ultra rapid solidification and that a strong passive layer was formed by mist gas cooling.
- Link information
- ID information
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- DOI : 10.2320/matertrans.M2015392
- ISSN : 1345-9678
- eISSN : 1347-5320
- Web of Science ID : WOS:000376226500003