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The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy
This paper discusses the effect of different heat treatment procedures on the microstructural characteristics, damping capacities, and mechanical properties of CuAlNi shape memory alloys (SMA). The investigation was performed on samples in the as-cast state and heat treated states (solution annealin...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911558/ https://www.ncbi.nlm.nih.gov/pubmed/35269055 http://dx.doi.org/10.3390/ma15051825 |
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author | Ivanić, Ivana Kožuh, Stjepan Grgurić, Tamara Holjevac Vrsalović, Ladislav Gojić, Mirko |
author_facet | Ivanić, Ivana Kožuh, Stjepan Grgurić, Tamara Holjevac Vrsalović, Ladislav Gojić, Mirko |
author_sort | Ivanić, Ivana |
collection | PubMed |
description | This paper discusses the effect of different heat treatment procedures on the microstructural characteristics, damping capacities, and mechanical properties of CuAlNi shape memory alloys (SMA). The investigation was performed on samples in the as-cast state and heat treated states (solution annealing at 885 °C/60′/H(2)O and after tempering at 300 °C/60′/H(2)O). The microstructure of the samples was examined by light microscopy (LM) and scanning electron microscopy (SEM) equipped with a device for energy dispersive spectrometry (EDS) analysis. Light and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the changes in microstructure due to heat treatment by the presence of two types of martensite phases (β(1′) and γ(1′)) influenced alloy damping and mechanical properties by enhancing alloy damping characteristics. Heat treatment procedure reduced the alloys’ mechanical properties and increased hardness of the alloy. Fractographic analysis of the alloy showed a transgranular type of fracture in samples after casting. After solution annealing, two types of fracture mechanisms can be noticed, transgranular and intergranular, while in tempered samples, mostly an intergranular type of fracture exists. |
format | Online Article Text |
id | pubmed-8911558 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89115582022-03-11 The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy Ivanić, Ivana Kožuh, Stjepan Grgurić, Tamara Holjevac Vrsalović, Ladislav Gojić, Mirko Materials (Basel) Article This paper discusses the effect of different heat treatment procedures on the microstructural characteristics, damping capacities, and mechanical properties of CuAlNi shape memory alloys (SMA). The investigation was performed on samples in the as-cast state and heat treated states (solution annealing at 885 °C/60′/H(2)O and after tempering at 300 °C/60′/H(2)O). The microstructure of the samples was examined by light microscopy (LM) and scanning electron microscopy (SEM) equipped with a device for energy dispersive spectrometry (EDS) analysis. Light and scanning electron microscopy showed martensitic microstructure in all investigated samples. However, the changes in microstructure due to heat treatment by the presence of two types of martensite phases (β(1′) and γ(1′)) influenced alloy damping and mechanical properties by enhancing alloy damping characteristics. Heat treatment procedure reduced the alloys’ mechanical properties and increased hardness of the alloy. Fractographic analysis of the alloy showed a transgranular type of fracture in samples after casting. After solution annealing, two types of fracture mechanisms can be noticed, transgranular and intergranular, while in tempered samples, mostly an intergranular type of fracture exists. MDPI 2022-02-28 /pmc/articles/PMC8911558/ /pubmed/35269055 http://dx.doi.org/10.3390/ma15051825 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 Ivanić, Ivana Kožuh, Stjepan Grgurić, Tamara Holjevac Vrsalović, Ladislav Gojić, Mirko The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title | The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title_full | The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title_fullStr | The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title_full_unstemmed | The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title_short | The Effect of Heat Treatment on Damping Capacity and Mechanical Properties of CuAlNi Shape Memory Alloy |
title_sort | effect of heat treatment on damping capacity and mechanical properties of cualni shape memory alloy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911558/ https://www.ncbi.nlm.nih.gov/pubmed/35269055 http://dx.doi.org/10.3390/ma15051825 |
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