DEVICE 3D VISUALIZATION OF DEFORMATION STATE OF MATERIAL SURFACE IN AREA OF ELASTIC DEFORMATIONS Russian patent published in 2020 - IPC G01N19/08 G01N23/20 

FIELD: technological processes; physics.

SUBSTANCE: invention relates to devices for determining elastic properties of materials by indenting a microindentor in the surface of a sample at a given depth in the region of elastic deformations. 3D visualization device comprises a point X-ray source, a rotating goniometric table with a specimen attachment unit and a mechanical unit for power loading of the analyzed material, X-ray detectors, as well as a computer processing and control unit. Device additionally includes a special assembly comprising a coaxial section of a cylindrical tube of material which is transparent for X-rays, a microindentor and a device for linear movement of the microindentor. Mechanical unit of power loading, made in form of micrometric screw with divisions, together with device of linear movement are rigidly fixed on upper end of introduced cylindrical tube outside it, and the lower end of the tube is connected by a screw connection to the mounting seat for attachment of the introduced special assembly on the goniometric table. On the upper plane of the seat inside the cylindrical tube there is a unit for attachment of the analyzed sample. Distance between the X-ray source and receivers is selected equal to 30 ± 5 mm, and the goniometric table with the special unit is located in the middle between the X-ray source and the receivers.

EFFECT: high technological capabilities of the X-ray microtomograph, which consists in visualizing the deformation state of the material without terminating the force action and increasing resolution.

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