Effects of gas temperature and ceramic particle content on microstructure and microhardness of cold sprayed SiCp/Al 5056 composite coatings

► SiCp/Al 5056 composite coatings were prepared by cold spray. ► Gas temperature has no effect on the content of SiC in the coatings. ► Deposition efficiency first increases and then decreases as SiC content increases. ► Spraying pure SiC presents SiC behaviors during formation of composite coatings. ► SiC deposition behaviors are cracking, embedment and rebounding.