Adjustment of the microstructure and selected mechanical properties of biomedical Ti-15Zr-Mo alloys through oxygen doping

Autor(es)

Correa, D. R. N. ^{[1, 2, 3]} ; Kuroda, P. A. B. ^{[1, 2]} ; Lourenco, M. L. ^{[1, 2]} ; Buzalaf, M. A. R. ^[4] ; Grandini, C. R. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Lab Anelasticidade & Biomat, BR-17033360 Bauru, SP - Brazil

^[2] Inst Biomat Tribocorros & Nanomed, Brazilian Branch, IBTN Br, BR-17033360 Bauru, SP - Brazil

^[3] IFSP Fed Inst Educ Sci & Technol Sao Paulo, Grp Pesquisa Mat Met Avancados, BR-18095410 Sorocaba, SP - Brazil

^[4] Univ Sao Paulo, Fac Odontol, Dept Ciencias Biol, BR-17012901 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Alloys and Compounds; v. 775, p. 158-167, FEB 15 2019.
• Citações Web of Science: 4

Resumo

This study investigated the effect of oxygen doping on the crystalline structure, microstructure, and selected mechanical properties (Vickers microhardness, Young's modulus and internal friction) of Ti15Zr-xMo (x = 5, 7.5, 10, 15 and 20 wt%) alloys for use as biomaterials. The monitoring of oxygen pressure along with the doping treatment indicated that the interstitial element was successfully absorbed into the samples. Results showed that oxygen content slightly altered the alpha `'/beta phase proportion and 13 phase crystalline parameter without abruptly changing their microstructure. Moreover, the selected mechanical properties suffered variations in a non-linear manner. Oxygen content was found to be suitable to produce small variations in the microstructure and in the selected properties of biomedical Ti alloys, keeping the main composition unchanged. (C) 2018 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 10/20440-7 - Efeito de elementos substitucionais e intersticiais nas propriedades mecânicas e biocompatibilidade de ligas do sistema Ti-15Zr-xMo
• Beneficiário: Diego Rafael Nespeque Correa
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 15/00851-6 - Biofuncionalização da liga Ti-15Zr com a adição de molibdênio e diferentes modificações de superfície
• Beneficiário: Diego Rafael Nespeque Correa
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado