Influence of the microstructure and phases on surface functionalization of beta Ti-25Ta-xZr- alloys system

• Grant number: 19/26517-6
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: July 01, 2020
• End date: June 30, 2023
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Conrado Ramos Moreira Afonso
• Grantee: Pedro Akira Bazaglia Kuroda
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Titanium alloys have been widely used as biomaterials, especially for orthopedic prostheses and dental implants, but these materials have Young's modulus three times greater than human cortical bone, because of this, new alloys are having produced with the proposes of decrease the Young's modulus to a good mechanical compatibility with the bone. Also, the oxide film that occurs naturally at the surface of titanium presents better compatibility with bone cells than other alloys, granting it to be a more suitable material. However, there is still a biomechanical discrepancy between the developed materials and their medical application, which causes an unsuitable lifespan of these biomaterials. The main objective of this project is the development and characterization of Ti-25Ta-Zr (Zr= 0, 25 and 50%wt.) system alloys. It will also be performed the study of the alloy surface through electrochemical deposition techniques (Micro-arc Oxidation). The aim is to incorporate bioactive elements and particles to the titanium surface, in order to improve the implant and bone cells interaction. This stage can be held at the University of Minho and Porto in Portugal. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

KURODA, PEDRO AKIRA BAZAGLIA; GRANDINI, CARLOS ROBERTO; AFONSO, CONRADO RAMOS MOREIRA. Surface Characterization of New beta Ti-25Ta-Zr-Nb Alloys Modified by Micro-Arc Oxidation. MATERIALS, v. 16, n. 6, p. 12-pg., 2023-03-01. (18/18293-8, 19/26517-6)

KURODA, PEDRO AKIRA BAZAGLIA; ROSSI, MARIANA CORREA; GRANDINI, CARLOS ROBERTO; AFONSO, CONRADO RAMOS MOREIRA. Assessment of applied voltage on the structure, pore size, hardness, elastic modulus, and adhesion of anodic coatings in Ca-, P-, and Mg-rich produced by MAO in Ti-25Ta-Zr alloys. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 26, p. 14-pg., 2023-08-31. (18/18293-8, 19/26517-6)

KURODA, PEDRO A. B.; DOS SANTOS, RAFAEL F. M.; ROSSI, MARIANA C.; CORREA, DIEGO R. N.; GRANDINI, CARLOS R.; AFONSO, CONRADO R. M.. Influence of Zr addition in β Ti-25Ta-xZr alloys on oxide formation by MAO-treatment. VACUUM, v. 217, p. 12-pg., 2023-09-01. (21/03865-9, 18/18293-8, 19/26517-6)

KURODA, PEDRO AKIRA BAZAGLIA; DE MATTOS, FELYPE NARCISO; GRANDINI, CARLOS ROBERTO; AFONSO, CONRADO RAMOS MOREIRA. Influence of the heat treatment temperature on the MAO coating produced in the Ti-25Ta-25Zr alloy. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 26, p. 12-pg., 2023-08-28. (18/18293-8, 19/26517-6)

FELYPE N. DE MATTOS; PEDRO A. B. KURODA; MARIANA C. ROSSI; CONRADO R. M. AFONSO. Wear Behavior of Ti-xNb Biomedical Alloys by Ball Cratering. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 27, 2024-02-26. (21/03865-9, 18/18293-8, 19/26517-6)

PEDRO AKIRA BAZAGLIA KURODA; CARLOS ROBERTO GRANDINI; CONRADO RAMOS MOREIRA AFONSO. Structural Characterization of the Hot-rolled Ti-25Ta-xZr Alloys by Rietveld Method. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 26, 2023-06-26. (18/18293-8, 19/26517-6)

KURODA, PEDRO AKIRA BAZAGLIA; DE MATTOS, FELYPE NARCISO; GRANDINI, CARLOS ROBERTO; AFONSO, CONRADO RAMOS MOREIRA. Effect of heat treatment on the phases, pore size, roughness, wettability, hardness, adhesion, and wear of Ti-25Ta MAO coatings for use as biomaterials. Journal of Materials Science, v. N/A, p. 14-pg., 2023-10-09. (18/18293-8, 19/26517-6)

RAFAEL FORMENTON MACEDO DOS SANTOS; PEDRO AKIRA BAZAGLIA KURODA; CAROLINA NEVES REIS; CONRADO RAMOS MOREIRA AFONSO. Influence of Hot Rolling on β Ti-Nb-Zr(-Ta) Multiprincipal Alloys for Biomedical Application. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 26, 2023-10-30. (20/12431-0, 18/18293-8, 19/26517-6)