10.14489/td.2017.02.pp.028-032

2017, 02 February

DOI: 10.14489/td.2017.02.pp.028-032

Potapov A. I., Gogolinskiy K. V., Kondratiev A. V., Umanskiy A. S.
INDIRECT ASSESSMENT OF INDENTER AREA FUNCTION FOR MEASURING MECHANICAL PROPERTIES BY INSTRUMENTED INDENTATION
(pp. 28-32)

Abstract. The article deals with the problem of imperfection of the indenter geometry and the principles of assessment of indenter area function for the calculation of the mechanical properties of the samples by the instrumented indentation method with required uncertainty. An algorithm for indirect de-termination of indenter area function is proposed. The indenter area function is calculated from the series of indentations in calibrated reference material, such as fused silica, and solving inverse task with known hardness, elasticity modulus of material and contact depth of indentations. The indentations should be carried out in effective range of load. To confirm the correctness of suggested indirect indenter area function determination algorithm, comparative measurements on samples of fused quartz and silicon with crystal orientation (100) were carried out in the range of indentation contact depth from 70 nm to 1050 μm. The dependences of hardness and elasticity modulus from the indentation depth are analyzed.

Keywords: instrumented indentation, nanoindentation, mechanical properties, hardness testing, elasticity modulus.

+ - About the Authors Click to collapse

A. I. Potapov (National Mineral Resource University, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
K. V. Gogolinskiy (D. I. Mendeleyev Institute for Metrology, Moscow, Russia ) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. V. Kondratiev (St.-Petersburg State Marine Technical University, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. S. Umanskiy (National Mineral Resource University, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Metals and alloys. Measurement of hardness and other properties of materials at the tool indentation. Part 1. Test method. (2013). Ru Standard No. GOST R 8.748–2011 (ISO 14577-1:2002) GSI. Moscow: Standartinform. [in Russian language]
2. Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 1. Test method. (2015). International Standard No. ISO 14577-1:2015.
3. Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 2. Verification and calibration of testing machines. (2015). International standard No. ISO 14577-2:2015.
4. Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 3. Calibration of reference blocks. (2015). International Standard No. ISO 14577-3:2015.
5. Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 4. Test method for metallic and non-metallic coatings. (2015). International Standard No. ISO 14577-4:2015.
6. Potapov A. I., Gogolinskii K. V., Sias'ko V. A. et al. (2016). Methodological and metrological aspects of materials mechanical properties measurements by instrumented indentation. Kontrol'. Diagnostika, (8), pp. 16-21. doi: 10.14489/td.2016.08.pp.016-021 [in Russian language]
7. Useinov A., Kravchuk K., Gogolinskii K. (2013). Hardness measurement. Monitoring the tip form. Nanoindustriia, 40(2), pp. 38-46. [in Russian language]

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