PSI - Issue 36

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 36 (2022) 59–65

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Abstract The authors have considered the current situation with determining the mechanical characteristics of metals from the results of hardness measurements. The particular features of hardness measurement regarding harmonization of national standards with international standards are specified. Moreover, there is a need for a comparative analysis of existing regulatory documents for determining the characteristics from the hardness measurement results to improve their accuracy. Particular attention is paid to the reliability and accuracy of hardness measurements considering the international practice and many years of the accumulated experience. The validity of the use of some measuring devices requires an additional investigation. The main trends in the development of the determination of mechanical characteristics using the method of instrumented indentation are analyzed. The necessity of comparative analysis of existing determination methods of mechanical characteristics from the indentation results is indicated. It is required to develop a normative document, which regulates the application of instrumented indentation to current control for the materials of Ukrainian NPP main equipment. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: mechanical properties; yield strength; tensile strength; Brinell hardness; instrumented indentation test; steel. e This is an open access article under the CC BY-NC-N 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Analysis of the methods for determination of strength characteristics of NPP main equipment metal from the results of hardness and indentation measurements V. V. Kharchenko, O. A. Katok, R. V. Kravchuk*, A. V. Sereda, V. P. Shvets G. S. Pisarenko Institute for Problems of Strength of the NAS of Ukraine, 2 Timiryazevs’ka, Kyiv 01014, Ukraine

* Corresponding author. Tel.: +380442866857. E-mail address: kravchuk.r@ipp.kiev.ua

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 10.1016/j.prostr.2022.01.003