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Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys
High entropy CoCrFeNiCu(x) alloys with a Cu molar ratio of x ≈ 0, 0.5, 1, 1.5 and 2 were arc welded. Solidification cracking occurred in the fusion zones of alloys with x ≈ 0.5, 1 and 1.5. Cu-rich material was observed around cracks, increasing in quantity with increasing Cu content. Liquation crack...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456385/ https://www.ncbi.nlm.nih.gov/pubmed/37629912 http://dx.doi.org/10.3390/ma16165621 |
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author | Yu, Ping Kou, Sindo Lin, Chun-Ming |
author_facet | Yu, Ping Kou, Sindo Lin, Chun-Ming |
author_sort | Yu, Ping |
collection | PubMed |
description | High entropy CoCrFeNiCu(x) alloys with a Cu molar ratio of x ≈ 0, 0.5, 1, 1.5 and 2 were arc welded. Solidification cracking occurred in the fusion zones of alloys with x ≈ 0.5, 1 and 1.5. Cu-rich material was observed around cracks, increasing in quantity with increasing Cu content. Liquation cracking occurred in the partially melted zone next to the fusion zone, and it propagated into the fusion zone as solidification cracking. A recently proposed index for the susceptibility to solidification cracking was tried, i.e., |dT/d(f(S))(1/2)| near (f(S))(1/2) = 1, where T is temperature and f(S) the solid fraction. The index was higher in alloys with x ≈ 0.5, 1.0 and 1.5, consistent with the solidification cracking observed. |
format | Online Article Text |
id | pubmed-10456385 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104563852023-08-26 Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys Yu, Ping Kou, Sindo Lin, Chun-Ming Materials (Basel) Article High entropy CoCrFeNiCu(x) alloys with a Cu molar ratio of x ≈ 0, 0.5, 1, 1.5 and 2 were arc welded. Solidification cracking occurred in the fusion zones of alloys with x ≈ 0.5, 1 and 1.5. Cu-rich material was observed around cracks, increasing in quantity with increasing Cu content. Liquation cracking occurred in the partially melted zone next to the fusion zone, and it propagated into the fusion zone as solidification cracking. A recently proposed index for the susceptibility to solidification cracking was tried, i.e., |dT/d(f(S))(1/2)| near (f(S))(1/2) = 1, where T is temperature and f(S) the solid fraction. The index was higher in alloys with x ≈ 0.5, 1.0 and 1.5, consistent with the solidification cracking observed. MDPI 2023-08-14 /pmc/articles/PMC10456385/ /pubmed/37629912 http://dx.doi.org/10.3390/ma16165621 Text en © 2023 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 Yu, Ping Kou, Sindo Lin, Chun-Ming Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title | Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title_full | Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title_fullStr | Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title_full_unstemmed | Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title_short | Solidification and Liquation Cracking in Welds of High Entropy CoCrFeNiCu(x) Alloys |
title_sort | solidification and liquation cracking in welds of high entropy cocrfenicu(x) alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456385/ https://www.ncbi.nlm.nih.gov/pubmed/37629912 http://dx.doi.org/10.3390/ma16165621 |
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