Science, Maths & Technology
Toyota diffusion (TD)
...working tool steel (Fe–5Cr) D2 ASP30, produced by hot isostatic compaction. The coating grows by reaction of the carbide-former and carbon atoms diffusing from the matrix. The hardness of the vanadium carbide layer is in excess of 3000 VPN, which is higher than most other similar processes. Very hard carbide layers provide excellent wear resistance to steel and, in some...