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摘 要:A new hardfacing process, reactive braze coming process (RBCC) was studied, and (TiC+Cr3C2)/Fe composite coatings were prepared by RBCC asing carbon, Cr3C2, iron, ferrochromium and titanium powder as the raw materials in vacuum braze furnace. The results show that TiC is in-situ synthesized in the coatings. The methods of introducing Cr3C2 have great effects on the distribution of TiC. Adding Cr3C2 directly to the raw materials for coatings, fine TiC particles aggregate into discoids parallel to the coating surface, whereas, in-situ synthesizing Cr3C2 in coatings, the aggregations of TiC are lumpish. During braze coating, Cr3C2 particles directly added dissolve and precipitate to become needle-shaped. The coatings have an even and smooth surface and are combined with their mild steel substrates by a metullurgicul bonding.
A study on reactive braze coating of （TiC＋Cr3C2 ）／Fe composite coatings.pdf
