Thermoplastic strengthening of items with heat-resistant coatings

The article provides a scheme for the formation of residual stresses during thermoplastic hardening (TPU) of coated parts. The statement of the problem is explained as follows: study of the effects on heat resistance, creep, fatigue resistance of heat-resistant alloys, which leads to an improvement in the operational and strength characteristics of GTE parts. Determination of residual stresses in the surface layer of thermally hardened parts decided the selection of different hardening mechanisms for different temperature fields and compared with the temperature in homogeneous materials, which should be determined with heat-resistant coatings. When calculating the residual stresses in the elastic-plastic zone, the numerical method was used. Were manufactured by serial technology and subjected to thermoplastic hardening. Developed gamma targets for critical engine parts. The experimental results of studies of residual stresses at TPU are given. The research results showed that operational performance has higher operating performance than hardened by serial technology.