Abstract

When chemical-heat treatment (CHT), details have to heat at high temperature and holding long time, thus they are usually becoming to brittlement. To quicken speed of CHT, may in addition to composition for CHT low melting temperature elements, then the temperature and the holding time of CHT are much reduced, while mechanical properties as hardness, brittlement are unabated. There is experiment to CHT multi elements Cr-Ti and Ti-V for hard alloy T15K6 with adding low melting temperature elements as Cd, Sb, is received suitable results.