Ultrahigh hardness and biocompatibility of high-entropy alloy TiAlFeCoNi processed by high-pressure torsion

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorKyushu University-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorEdalati, Parisa-
Autor(es): dc.creatorFloriano, Ricardo-
Autor(es): dc.creatorTang, Yongpeng-
Autor(es): dc.creatorMohammadi, Abbas-
Autor(es): dc.creatorPereira, Karina Danielle [UNESP]-
Autor(es): dc.creatorLuchessi, Augusto Ducati [UNESP]-
Autor(es): dc.creatorEdalati, Kaveh-
Data de aceite: dc.date.accessioned2022-02-22T00:25:17Z-
Data de disponibilização: dc.date.available2022-02-22T00:25:17Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.msec.2020.110908-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198698-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198698-
Descrição: dc.descriptionDespite significant studies on mechanical properties of high-entropy alloys (HEAs), there have been limited attempts to examine the biocompatibility of these alloys. In this study, a lattice-softened high-entropy alloy TiAlFeCoNi with ultrahigh hardness (examined by Vickers method), low elastic modulus (examined by nanoindentation) and superior activity for cell proliferation/viability/cytotoxicity (examined by MTT assay) was developed by employing imperial data and thermodynamic calculations. The designated alloy after casting was processed further by high-pressure torsion (HPT) to improve its hardness via the introduction of nanograins, dislocations and order-disorder transformation. The TiAlFeCoNi alloy with the L21-BCC crystal structure exhibited 170–580% higher hardness and 260–1020% better cellular metabolic activity compared to titanium and Ti-6Al-7Nb biomaterials, suggesting the high potential of HEAs for future biomedical applications.-
Descrição: dc.descriptionMinistry of Education, Culture, Sports, Science and Technology-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstituto Serrapilheira-
Descrição: dc.descriptionWPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University-
Descrição: dc.descriptionSchool of Applied Sciences University of Campinas (UNICAMP)-
Descrição: dc.descriptionInstitute of Biosciences São Paulo State University (UNESP)-
Descrição: dc.descriptionInstitute of Biosciences São Paulo State University (UNESP)-
Descrição: dc.descriptionMinistry of Education, Culture, Sports, Science and Technology: 19H05176-
Descrição: dc.descriptionFAPESP: 2013/23620-4-
Descrição: dc.descriptionFAPESP: 2018/15968-4-
Descrição: dc.descriptionInstituto Serrapilheira: Serra-1709-17362-
Idioma: dc.languageen-
Relação: dc.relationMaterials Science and Engineering C-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiomaterials-
Palavras-chave: dc.subjectCALPHAD (calculation of phase diagram) method-
Palavras-chave: dc.subjectHigh-entropy alloys (HEAs)-
Palavras-chave: dc.subjectLattice softening-
Palavras-chave: dc.subjectPhase transformation-
Palavras-chave: dc.subjectSevere plastic deformation (SPD)-
Título: dc.titleUltrahigh hardness and biocompatibility of high-entropy alloy TiAlFeCoNi processed by high-pressure torsion-
Tipo de arquivo: dc.typelivro digital-
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