Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys
Ductile Cu–Al–Mn shape memory alloys obtain the damping capacity through the movement of martensite boundaries. To reduce the number of vacancies at martensite boundaries can improve their damping capacity. Our results showed that Ni alloying could remarkably suppress the vacancy movement during the...
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| Format: | Article |
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Elsevier
2023-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542301654X |
| _version_ | 1827867645599285248 |
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| author | Li Cai Yongning Wang Wen Huang Wei He Huabei Peng Yuhua Wen |
| author_facet | Li Cai Yongning Wang Wen Huang Wei He Huabei Peng Yuhua Wen |
| author_sort | Li Cai |
| collection | DOAJ |
| description | Ductile Cu–Al–Mn shape memory alloys obtain the damping capacity through the movement of martensite boundaries. To reduce the number of vacancies at martensite boundaries can improve their damping capacity. Our results showed that Ni alloying could remarkably suppress the vacancy movement during the process of cooling from high temperature and heating as well as ageing. The Cu-18.0Al-8.4Mn-2.5Ni alloy showed remarkably higher damping capacity than the Cu-18.0Al-9.4Mn alloy did due to the reduced vacancies at martensite boundaries by the Ni alloying, regardless of the direct quenching, up-quenching, and step-quenching. The occurrence of martensitic stabilization could rationalize the lower improvement of damping capacity in the up-quenched Cu-18.0Al-9.4Mn alloy. The present results also further confirmed that the original number of vacancies at the martensite boundaries determined the occurrence of martensitic stabilization. |
| first_indexed | 2024-03-12T15:20:26Z |
| format | Article |
| id | doaj.art-fbcb8b06fe0646f294e83c815cc6c01e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-12T15:20:26Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-fbcb8b06fe0646f294e83c815cc6c01e2023-08-11T05:34:36ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012571097118Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloysLi Cai0Yongning Wang1Wen Huang2Wei He3Huabei Peng4Yuhua Wen5School of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610041, China; Corresponding author.School of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR ChinaSchool of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR ChinaSchool of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR ChinaSchool of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR China; Corresponding author.Ductile Cu–Al–Mn shape memory alloys obtain the damping capacity through the movement of martensite boundaries. To reduce the number of vacancies at martensite boundaries can improve their damping capacity. Our results showed that Ni alloying could remarkably suppress the vacancy movement during the process of cooling from high temperature and heating as well as ageing. The Cu-18.0Al-8.4Mn-2.5Ni alloy showed remarkably higher damping capacity than the Cu-18.0Al-9.4Mn alloy did due to the reduced vacancies at martensite boundaries by the Ni alloying, regardless of the direct quenching, up-quenching, and step-quenching. The occurrence of martensitic stabilization could rationalize the lower improvement of damping capacity in the up-quenched Cu-18.0Al-9.4Mn alloy. The present results also further confirmed that the original number of vacancies at the martensite boundaries determined the occurrence of martensitic stabilization.http://www.sciencedirect.com/science/article/pii/S223878542301654XDuctile Cu–Al–Mn alloyNi elementVacancy diffusionDamping capacity |
| spellingShingle | Li Cai Yongning Wang Wen Huang Wei He Huabei Peng Yuhua Wen Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys Journal of Materials Research and Technology Ductile Cu–Al–Mn alloy Ni element Vacancy diffusion Damping capacity |
| title | Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys |
| title_full | Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys |
| title_fullStr | Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys |
| title_full_unstemmed | Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys |
| title_short | Effect of Ni alloying on vacancy behavior and damping capacity in martensitic ductile Cu–Al–Mn alloys |
| title_sort | effect of ni alloying on vacancy behavior and damping capacity in martensitic ductile cu al mn alloys |
| topic | Ductile Cu–Al–Mn alloy Ni element Vacancy diffusion Damping capacity |
| url | http://www.sciencedirect.com/science/article/pii/S223878542301654X |
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