Current Status of Research on Ni-based Composite Coatings
Ni-based composite coatings,one of the metal matrix composite coatings,have been widely adopted for surface modification of carbon steel,Aluminum alloys,and Titanium alloys to-day.It has gained attention in areas such as aerospace industry,national defense and chemical engi-neering industry due to its high cost-performance ratio,excellent corrosion resistance and wear re-sistance.Various kinds of Ni-based composite coatings,such as Ni-WC composite coatings,have been developed for application.However,modern industrial applications demand higher coating per-formance.The traditional Ni-based composite coatings face issues of insufficient wear and corrosion resistance,and lack in-depth research of the fundamental mechanism.This paper provides a classi-fied review based on preparation processes,typical reinforcing phase,and coating functionalities.It also introduces the current research progress and some formation mechanisms of Ni-based functional coating.Finally,the paper identifies several existing problems in the area of Ni-based composite coating and provides prospects for future research.
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