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https://hdl.handle.net/10316/105210
Título: | Experimental Analysis of NiTi Alloy during Strain-Controlled Low-Cycle Fatigue | Autor: | Lima, Pedro Cunha Rodrigues, Patrícia Freitas Ramos, Ana Sofia Costa, José D. M. da Braz Fernandes, Francisco Manuel Vieira, Maria Teresa |
Palavras-chave: | NiTi; shape memory alloy; stress-induced martensite; resistivity | Data: | 9-Ago-2021 | Editora: | MDPI AG | Projeto: | PTDC/CTM-CTM/29101/2017— POCI-01-0145-FEDER-029101 UIDB/EMS/00285/2020 UIDB/50025/2020-2023 |
Título da revista, periódico, livro ou evento: | Materials | Volume: | 14 | Número: | 16 | Resumo: | The interaction between the stress-induced martensitic transformation and resistivity behavior of superelastic NiTi shape memory alloy (SMA) was studied. Strain-controlled low-cycle fatigue up to 6% was monitored by in situ electrical resistivity measurements. The experimental results show that a great motion of martensite fronts results in a significant accumulation of defects, as evidenced by transmission electron microscopy (TEM), before and after the tensile cycles. This gives rise to an overall increase of the resistivity values up to the maximum deformation. Therefore, the research suggests that shape memory alloy wire has great potential as a stress sensor inside bulk materials. | URI: | https://hdl.handle.net/10316/105210 | ISSN: | 1996-1944 | DOI: | 10.3390/ma14164455 | Direitos: | openAccess |
Aparece nas coleções: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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Experimental-analysis-of-niti-alloy-during-straincontrolled-lowcycle-fatigueMaterials.pdf | 4.08 MB | Adobe PDF | Ver/Abrir |
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