Ultrahigh hardness and biocompatibility of high-entropy alloy TiAlFeCoNi processed by high-pressure torsion
dc.contributor.author | Edalati, Parisa | |
dc.contributor.author | Floriano, Ricardo | |
dc.contributor.author | Tang, Yongpeng | |
dc.contributor.author | Mohammadi, Abbas | |
dc.contributor.author | Pereira, Karina Danielle [UNESP] | |
dc.contributor.author | Luchessi, Augusto Ducati [UNESP] | |
dc.contributor.author | Edalati, Kaveh | |
dc.contributor.institution | Kyushu University | |
dc.contributor.institution | Universidade Estadual de Campinas (UNICAMP) | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2020-12-12T01:19:41Z | |
dc.date.available | 2020-12-12T01:19:41Z | |
dc.date.issued | 2020-07-01 | |
dc.description.abstract | Despite 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. | en |
dc.description.affiliation | WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University | |
dc.description.affiliation | School of Applied Sciences University of Campinas (UNICAMP) | |
dc.description.affiliation | Institute of Biosciences São Paulo State University (UNESP) | |
dc.description.affiliationUnesp | Institute of Biosciences São Paulo State University (UNESP) | |
dc.description.sponsorship | Ministry of Education, Culture, Sports, Science and Technology | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Instituto Serrapilheira | |
dc.description.sponsorshipId | Ministry of Education, Culture, Sports, Science and Technology: 19H05176 | |
dc.description.sponsorshipId | FAPESP: 2013/23620-4 | |
dc.description.sponsorshipId | FAPESP: 2018/15968-4 | |
dc.description.sponsorshipId | Instituto Serrapilheira: Serra-1709-17362 | |
dc.identifier | http://dx.doi.org/10.1016/j.msec.2020.110908 | |
dc.identifier.citation | Materials Science and Engineering C, v. 112. | |
dc.identifier.doi | 10.1016/j.msec.2020.110908 | |
dc.identifier.issn | 1873-0191 | |
dc.identifier.issn | 0928-4931 | |
dc.identifier.scopus | 2-s2.0-85082770183 | |
dc.identifier.uri | http://hdl.handle.net/11449/198698 | |
dc.language.iso | eng | |
dc.relation.ispartof | Materials Science and Engineering C | |
dc.source | Scopus | |
dc.subject | Biomaterials | |
dc.subject | CALPHAD (calculation of phase diagram) method | |
dc.subject | High-entropy alloys (HEAs) | |
dc.subject | Lattice softening | |
dc.subject | Phase transformation | |
dc.subject | Severe plastic deformation (SPD) | |
dc.title | Ultrahigh hardness and biocompatibility of high-entropy alloy TiAlFeCoNi processed by high-pressure torsion | en |
dc.type | Artigo | |
dspace.entity.type | Publication |