METHOD FOR DIAGNOSING THE STATE OF THE SURFACE LAYER OF A SOLID TARGET UNDER THE ACTION OF EXTERNAL LOADS Russian patent published in 2023 - IPC G01N19/06 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of monitoring and diagnosing the performance properties of wear-resistant materials and products and can be used in mechanical engineering, shipbuilding and other industries, as well as for coatings under cyclic loading, primarily associated with erosion resistance of the surface. Essence: a sample with a wear-resistant coating is subjected to a deforming load until the coating is destroyed, while the impact is carried out using a high-speed liquid jet used as an indenter, after which the impact result is further evaluated. An ultra-high-speed jet of hydrosuspension with abrasive particles is used as an indenter, which acts on a rotating horizontal sample plane in the form of a disk-shaped target in the direction from the periphery to the centre of the sample, with an angular velocity that provides a hydroscribing mode of movement of the hydrojet relative to the sample under study, in which local changes in its surface layer used to judge the state of the sample surface, and the suspension jets are at a distance from each other under the action of single impacts of solid-phase particles.

EFFECT: expanding the possibility of monitoring and diagnosing the resistance of the coating to the action of external loads to determine the residual life of materials and structures, including the coating of a solid target.

1 cl, 1 dwg