DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ishimoto, T. | - |
dc.contributor.author | Ozasa, R. | - |
dc.contributor.author | Nakano, K. | - |
dc.contributor.author | Weinmann, M. | - |
dc.contributor.author | Schnitter, C. | - |
dc.contributor.author | Stenzel, M. | - |
dc.contributor.author | Matsugaki, A. | - |
dc.contributor.author | Nagase, T. | - |
dc.contributor.author | Matsuzaka, T. | - |
dc.contributor.author | Todai, M. | - |
dc.contributor.author | Kim, H.S. | - |
dc.contributor.author | Nakano, T. | - |
dc.date.accessioned | 2021-06-01T01:58:11Z | - |
dc.date.available | 2021-06-01T01:58:11Z | - |
dc.date.created | 2021-02-03 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 1359-6462 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/105131 | - |
dc.description.abstract | BioHEAs, specifically designed high entropy alloy (HEA) systems for biomedical applications, represent a new era for biometals. However, recent challenges are (1) the poor shape customizability, and (2) the inevitable severe segregation due to the intrinsic fact that HEA is an ultra-multicomponent alloy system. To achieve shape customization and suppression of elemental segregation simultaneously, we used an extremely high cooling rate (similar to 10(7) K/s) of the selective laser melting (SLM) process. We, for the first time, developed pre-alloyed Ti1.4Nb0.6Ta0.6Zr1.4Mo0.6 BioHEA powders and SLM-built parts with low porosity, customizable shape, excellent yield stress, and good biocompatibility. The SLM-built specimens showed drastically suppressed elemental segregation compared to the cast counterpart, representing realization of a super-solid solution. As a result, the 0.2% proof stress reached 1690 +/- 78 MPa, which is significantly higher than that of cast Ti1.4Nb0.6Ta0.6Zr1.4Mo0.6 (1140 MPa). The SLM-built Ti1.4Nb0.6Ta0.6Zr1.4Mo0.6 BioHEA is promising as a next-generation metallic material for biomedical applications. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | SCRIPTA MATERIALIA | - |
dc.title | Development of TiNbTaZrMo bio-high entropy alloy (BioHEA) super-solid solution by selective laser melting, and its improved mechanical property and biocompatibility | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.scriptamat.2020.113658 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | SCRIPTA MATERIALIA, v.194 | - |
dc.identifier.wosid | 000632783300047 | - |
dc.citation.title | SCRIPTA MATERIALIA | - |
dc.citation.volume | 194 | - |
dc.contributor.affiliatedAuthor | Kim, H.S. | - |
dc.identifier.scopusid | 2-s2.0-85097888819 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Selective laser melting | - |
dc.subject.keywordAuthor | High entropy alloy | - |
dc.subject.keywordAuthor | BioHEA | - |
dc.subject.keywordAuthor | Cooling rate | - |
dc.subject.keywordAuthor | Segregation suppression | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.