Journal
TRIBOLOGY INTERNATIONAL
Volume 104, Issue -, Pages 321-327Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2016.09.014
Keywords
NiAl intermetallics coating; Laser cladding; Tribological properties; Wear mechanism
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51475444]
Ask authors/readers for more resources
Tribological properties, phase compositions and wear mechanisms of laser cladding NiAl coating were investigated from room temperature to 1000 degrees C under air atmosphere environment. The results showed that a glaze layer composed of NiO, Ni2O3, Al2O3 and NiAl2O4 phases as well as Ni3Al phase were formed on worn surface under high temperature, which act as a solid lubricant and anti-wear material improving the tribological properties of NiAl coating at elevated temperatures. The wear mechanism is dominated by abrasive wear below 500 degrees C, and transforms to plastic deformation and adhesive wear at 500 degrees C up to 700 degrees C and oxidation wear at 900 degrees C and above, owing to formation of new oxide phase during tribochemical reaction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available