Number of the records: 1
Experimental and numerical study of micromechanical damage induced by MnS-based inclusions
- 1.
SYSNO ASEP 0561614 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Experimental and numerical study of micromechanical damage induced by MnS-based inclusions Author(s) Tinoco Navaro, Hector Andres (UFM-A) ORCID
Fintová, Stanislava (UFM-A) ORCID
Heikkila, I. (SE)
Herrero, D. (ES)
Vuoristo, T. (SE)
Dlouhý, Ivo (UFM-A) RID, ORCID
Hutař, Pavel (UFM-A) RID, ORCIDNumber of authors 7 Article number 144009 Source Title Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 856, OCT (2022)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords Inclusions ; MnS ; Microtensile tests ; Fatigue ; Finite element analysis ; Nanoindentation Subject RIV JG - Metallurgy OECD category Materials engineering Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 000863044300001 EID SCOPUS 85138452122 DOI 10.1016/j.msea.2022.144009 Annotation The study is focused on the characterization of three microalloyed 38MnSiV6 steel variants in terms of microstructure, mechanical properties, and crack initiation. Conventional steel was used as reference material, while the two other variants with reduced sulfur content and Bi or Se addition were prepared. To determine the influence of the non-metallic inclusions present in the rolled round bars, hardness, tensile, impact toughness, and fatigue properties were examined longitudinally and transversally to the rolling direction. To describe the local strain and deformation around the inclusions during the microtensile tests, scanning electron microscope monitoring was adopted. Finite element analysis was applied to model strain/stress localization around inclusions during the microtensile tests. Modeling was performed in two solutions stages involving a macro-model (microtensile sample) and micro-model (inclusions). The comparison of the numerical analysis with the microstructural observations during microtensile tests showed a good agreement. The MnS and MnSeS inclusions were responsible for the intensive strain localization and subsequent crack initiation, while the Bi-MnS inclusions were not involved in this process. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2023 Electronic address https://www.sciencedirect.com/science/article/pii/S0921509322013880?via%3Dihub
Number of the records: 1