The short analysis of thermal stability and features of structure and physical-mechanical descriptions of thin wearproof coverages is executed on the basis of diborides of transitional metals, under act of high temperatures.
The optimization model of cutting process is presented by the hard-alloy plate of Т15К6 with nanocrystalline tape of diboride of hafnium, by possessing the best physical-mechanical descriptions nanohardness of Н = 44,5 GPa and module of resiliency of Е = 396 GPa
