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Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications

FIMEC (flat-top cylinder indenter for mechanical characterisation) is an instrumented indentation test employing a cylindrical punch. It has been used to determine the mechanical properties of metallic materials in several applications of industrial interest. This work briefly describes the techniqu...

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Autores principales: Montanari, Roberto, Varone, Alessandra
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8037817/
https://www.ncbi.nlm.nih.gov/pubmed/33916243
http://dx.doi.org/10.3390/ma14071742
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author Montanari, Roberto
Varone, Alessandra
author_facet Montanari, Roberto
Varone, Alessandra
author_sort Montanari, Roberto
collection PubMed
description FIMEC (flat-top cylinder indenter for mechanical characterisation) is an instrumented indentation test employing a cylindrical punch. It has been used to determine the mechanical properties of metallic materials in several applications of industrial interest. This work briefly describes the technique and the theory of indentation with a flat-ended punch. The flat indentation of metals has been investigated through experimental tests, and an equation has been derived to calculate the yield stress from the experimental data in deep indentation. The approach is supported by many data on various metals and alloys. Some selected case studies are presented in the paper: (i) crank manufacturing through pin squeeze casting; (ii) the evaluation of the local mechanical properties in a carter of complex geometry; (iii) the qualification of Al billets for extrusion; (iv) stress–relaxation tests on CuCrZr heat sinks; (v) the characterization of thick W coatings on CuCrZr alloy; (vi) the measure of the local mechanical properties of the molten-zone (MZ) and the heat-affected zone (HAZ) in welded joints. The case studies demonstrate the great versatility of the FIMEC test which provides information not available by employing conventional experimental techniques such as tensile, bending, and hardness tests. On the basis of theoretical knowledge and large amount of experimental data, FIMEC has become a mature technique for application on a large scale in industrial practice.
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spelling pubmed-80378172021-04-12 Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications Montanari, Roberto Varone, Alessandra Materials (Basel) Article FIMEC (flat-top cylinder indenter for mechanical characterisation) is an instrumented indentation test employing a cylindrical punch. It has been used to determine the mechanical properties of metallic materials in several applications of industrial interest. This work briefly describes the technique and the theory of indentation with a flat-ended punch. The flat indentation of metals has been investigated through experimental tests, and an equation has been derived to calculate the yield stress from the experimental data in deep indentation. The approach is supported by many data on various metals and alloys. Some selected case studies are presented in the paper: (i) crank manufacturing through pin squeeze casting; (ii) the evaluation of the local mechanical properties in a carter of complex geometry; (iii) the qualification of Al billets for extrusion; (iv) stress–relaxation tests on CuCrZr heat sinks; (v) the characterization of thick W coatings on CuCrZr alloy; (vi) the measure of the local mechanical properties of the molten-zone (MZ) and the heat-affected zone (HAZ) in welded joints. The case studies demonstrate the great versatility of the FIMEC test which provides information not available by employing conventional experimental techniques such as tensile, bending, and hardness tests. On the basis of theoretical knowledge and large amount of experimental data, FIMEC has become a mature technique for application on a large scale in industrial practice. MDPI 2021-04-01 /pmc/articles/PMC8037817/ /pubmed/33916243 http://dx.doi.org/10.3390/ma14071742 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Montanari, Roberto
Varone, Alessandra
Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title_full Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title_fullStr Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title_full_unstemmed Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title_short Flat-Top Cylinder Indenter for Mechanical Characterization: A Report of Industrial Applications
title_sort flat-top cylinder indenter for mechanical characterization: a report of industrial applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8037817/
https://www.ncbi.nlm.nih.gov/pubmed/33916243
http://dx.doi.org/10.3390/ma14071742
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