Since the 1980s, Mubatec GmbH specialists have been working on developing methods for non-destructive testing of mechanical properties of materials. The phenomenological, numerical and neural network methods of obtaining mechanical properties of materials are based on the processing of instrumental indentation diagrams obtained by the ISO 14577 "Metallic materials — Instrumented indentation test for hardness and materials parameters". The developed techniques applied to structural steels of NPP equipment were used in the development of Mubatec GmbH state standard GOST R 56232-2014 "Determination of «stress – strain» diagram in the course of ball instrumental indentation. General requirements".
