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Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method

The article presents the use of the modified pulse method (MPM) to determine the temperature characteristics of the thermal diffusivity of alloy 718. The experiment was carried out in the temperature range of 20–900 °C during the double heating of the sample with an interval of two weeks. The result...

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Autores principales: Terpiłowski, Janusz, Jóźwiak, Stanisław, Woroniak, Grzegorz, Szczepaniak, Robert
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697716/
https://www.ncbi.nlm.nih.gov/pubmed/36431367
http://dx.doi.org/10.3390/ma15227881
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author Terpiłowski, Janusz
Jóźwiak, Stanisław
Woroniak, Grzegorz
Szczepaniak, Robert
author_facet Terpiłowski, Janusz
Jóźwiak, Stanisław
Woroniak, Grzegorz
Szczepaniak, Robert
author_sort Terpiłowski, Janusz
collection PubMed
description The article presents the use of the modified pulse method (MPM) to determine the temperature characteristics of the thermal diffusivity of alloy 718. The experiment was carried out in the temperature range of 20–900 °C during the double heating of the sample with an interval of two weeks. The results of our own research showed a good correlation in the temperature range of 300–500 °C, during the first heating of the sample, with the recommended changes in thermal diffusivity by NPL & ASM and data from the MPDB database. On the other hand, clear deviations in the results occurred in the range of temperature changes up to about 300 °C, most likely responsible for the electron component of the conductivity of this alloy, and in the range above 700 °C, where there is a clear minimum that may be caused by the δ phase precipitation phenomenon.
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spelling pubmed-96977162022-11-26 Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method Terpiłowski, Janusz Jóźwiak, Stanisław Woroniak, Grzegorz Szczepaniak, Robert Materials (Basel) Article The article presents the use of the modified pulse method (MPM) to determine the temperature characteristics of the thermal diffusivity of alloy 718. The experiment was carried out in the temperature range of 20–900 °C during the double heating of the sample with an interval of two weeks. The results of our own research showed a good correlation in the temperature range of 300–500 °C, during the first heating of the sample, with the recommended changes in thermal diffusivity by NPL & ASM and data from the MPDB database. On the other hand, clear deviations in the results occurred in the range of temperature changes up to about 300 °C, most likely responsible for the electron component of the conductivity of this alloy, and in the range above 700 °C, where there is a clear minimum that may be caused by the δ phase precipitation phenomenon. MDPI 2022-11-08 /pmc/articles/PMC9697716/ /pubmed/36431367 http://dx.doi.org/10.3390/ma15227881 Text en © 2022 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
Terpiłowski, Janusz
Jóźwiak, Stanisław
Woroniak, Grzegorz
Szczepaniak, Robert
Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title_full Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title_fullStr Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title_full_unstemmed Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title_short Thermal Diffusivity Characteristics of the IN718 Alloy Tested with the Modified Pulse Method
title_sort thermal diffusivity characteristics of the in718 alloy tested with the modified pulse method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697716/
https://www.ncbi.nlm.nih.gov/pubmed/36431367
http://dx.doi.org/10.3390/ma15227881
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