Analysis of methods for calculating the module of elasticity during dynamic instrumental indentation

K. V. Gogolinskii; Гоголинский К. В.; A. S. Umanskii; Уманский А. С.; A. S. Golev; Голев А. С.; K. I. Doronin; Доронин К. И.; K. A. Tomsky; Томский К. А.

doi:10.31857/S0130308224070098

Analysis of methods for calculating the module of elasticity during dynamic instrumental indentation

Authors: Gogolinskii K.V.¹, Umanskii A.S.², Golev A.S.³, Doronin K.I.², Tomsky K.A.⁴
Affiliations:
1. NRC “Kurchatov Institute” — PINP
2. Saint Petersburg Mining University
3. OOO«CONSTANTA»
4. TKA Scientific Instruments LLC
Issue: No 7 (2024)
Pages: 72-76
Section: По материалам XXXV Уральской конференции «Физические методы неразрушающего контроля (Янусовские чтения)»
URL: https://ruspoj.com/0130-3082/article/view/649329
DOI: https://doi.org/10.31857/S0130308224070098
ID: 649329

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Abstract

The results of a comparative analysis of three methods for calculating the elastic modulus during dynamic instrumental indentation are presented: in accordance with GOST R 56474, GOST R 8.748 and the proposed original method based on data from optical analysis of the indentation using prepared samples of alloys 20Х25Н20С2, 20Х23Н18 and BrANZhNMts9-4-4- 1.

Keywords

dynamic instrumented indentation method, dynamic indentation, instrumented indentation, elastic modulus, hardness, mechanical properties

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About the authors

K. V. Gogolinskii

NRC “Kurchatov Institute” — PINP

Author for correspondence.
Email: nanoscan@yandex.ru
Russian Federation, 188300 Gatchina, m-rayon Orlova roshcha, 1

A. S. Umanskii

Saint Petersburg Mining University

Email: refreshermd@gmail.com
Russian Federation, 199106 St Petersburg, 21st Line, 2

A. S. Golev

OOO«CONSTANTA»

Email: artemgolev1999@gmail.com
Russian Federation, 198097 St Petersburg, Ogorodnyj pereulok, 21

K. I. Doronin

Saint Petersburg Mining University

Email: doronin.k.i@mail.ru
Russian Federation, 199106 St Petersburg, 21st Line, 2

K. A. Tomsky

TKA Scientific Instruments LLC

Email: tka46@mail.ru
Russian Federation, 192289 St Petersburg, Freight passage, 33

References

Kren A.P., Protasenya T.A. Determination of the physic and mechanical characteristics of isotropic pyrolitic graphite by dynamic indentation method // Defectoskopya. 2014. No. 7. C. 51—59.
Umanskii A.S., Gogolinskii K.V., Syasko V.A., Golev A.S. Modification of the Leeb Impact Device for Measuring Hardness by the Dynamic Instrumented Indentation Method // Inventions. 2022. V. 7. doi: 10.3390/inventions7010029
GOST R 8.748—2011 (ISO 14577-1:2002) Metallic materials. Instrumented indentation test for hardness and materials parameters. Test method.
GOST R 56474—2015. Space systems. Non-destructive testing of physics and mechanical properties of space technique’s materials and coatings by dynamic indentation. General requirements.
GOST R 8.969—2019 State system for ensuring the uniformity of measurements. Metals and alloys. Leeb hardness test. Part 1: Test method.

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2. Fig. 1. Diagram contact force — penetration depth for the AI method: 1 — loading curve; 2 — unloading curve; 3 — tangent to curve 2 at Fmax.

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3. Fig. 2. The parameters of the fingerprint during indentation: a — a simplified image of the longitudinal section of the area of the fingerprint and the indenter; b — a photograph of the resulting fingerprint.