Specific Features of the Formation of Structures in 60Kh2N4GDeF Precipitation-Hardening Steel

It is shown that the precipitation of large amounts (6.45-9.55%) of dispersed carbides (mainly of the cementite type) and Me7C3 and (V, Mo)C special carbides in the process of annealing of 60Kh2N4GDeF steel within the range 350-800A degrees D promotes an 18% increase in the hardness and a 1.5-1.61-fold increase in the wear resistance. The maximum hardening is attained in the case of low-temperature annealing at 450A degrees D. We establish the dependence of the coercive force on hardness capable of guaranteeing the possibility to perform quality control under the conditions of manufacturing and determine the most efficient technological parameters of annealing without destroying the product.