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Fatigue of a metastable beta titanium alloy for application as biomaterial

Grant number: 16/12995-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): November 01, 2016
Effective date (End): October 31, 2019
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Claudemiro Bolfarini
Grantee:Leonardo Contri Campanelli
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated research grant:13/05987-8 - Processing and characterization of amorphous, metastable and nano-structured metallic alloys, AP.TEM

Abstract

One of the main issues associated to the implantation of orthopedic biomaterials that stand high loadings comes from the stress shielding phenomenon. The difference between the modulus of elasticity of the metals and the bone promotes a significant loss of the bone mineral density and the consequent loosening of the implant, leading to the necessity of revision surgeries. Such issue is intensified due to the increase of the life expectancy of the population. In order to obtain implants with higher durability, titanium alloys were introduced in this industry, especially the Ti-6Al-4V alloy as a result of the biocompatibility, tensile strength and lower modulus of elasticity in comparison to the Co-Cr alloys (240 GPa) and the stainless steels (210 GPa). In spite of the massive use of this alloy, its modulus around 110 GPa is still relatively high. The worldwide tendency of research and development has focused on the metastable beta-type titanium alloys, ever since they provide lower modulus values in relation to Ti-6Al-4V, below 85 GPa. However, these values are obtained when the beta phase is predominant. With the partial transformation of beta to alpha phase, the modulus increases and becomes closer to the value of the Ti-6Al-4V. In this way, the current studies especially focus the physical metallurgy of the alloys, the phase transformations and biocompatibility and cellular interaction aspects. One of the most important aspects for the application in orthopedic implants that stand high loadings still requires many studies, which is the analysis of the mechanical properties, mainly the dynamic ones. So, the present work intends to assess the fatigue performance of the metastable beta Ti-12Mo-6Zr-2Fe (TMZF) alloy depending on the microstructure and on the respective modulus of elasticity. The understanding of the mechanism associated to the fatigue crack, resulting from the existing microstructure, will be sought as a way to allow the optimization of this property.

Scientific publications (9)
(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)
CAMPANELLI, LEONARDO C.; OLIVEIRA, NILSON T. C.; DA SILVA, PAULO SERGIO C. P.; BOLFARINI, CLAUDEMIRO; PALMIERI, ANNALISA; CURA, FRANCESCA; CARINCI, FRANCESCO; MOTHEO, ARTUR J. Fatigue resistance, electrochemical corrosion and biological response of Ti-15Mo with surface modified by amorphous TiO2 nanotubes layer. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, v. 107, n. 1, p. 86-96, JAN 2019. Web of Science Citations: 2.
MIRANDA LAGE, SARA BEATRIZ; CAMPANELLI, LEONARDO CONTRI; DE BRIBEAN GUERRA, ANA PAULA; SHEN, JUNJUN; DOS SANTOS, JORGE FERNANDEZ; CARVALHO PEREIRA DA SILVA, PAULO SERGIO; BOLFARINI, CLAUDEMIRO. A study of the parameters influencing mechanical properties and the fatigue performance of refill friction stir spot welded AlMgSc alloy. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, v. 100, n. 1-4, p. 101-110, JAN 2019. Web of Science Citations: 1.
DOS SANTOS, ALAN; CAMPANELLI, LEONARDO CONTRI; CARVALHO PEREIRA DA SILVA, PAULO SERGIO; VILAR, RUI; MARTINS DE ALMEIDA, MARIA AMELIA; KUZNETSOV, ALEXEI; ACHETE, CARLOS ALBERTO; BOLFARINI, CLAUDEMIRO. Influence of a Femtosecond Laser Surface Modification on the Fatigue Behavior of Ti-6Al-4V ELI Alloy. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 22, n. 4 2019. Web of Science Citations: 0.
FERNANDA POTOMATI; LEONARDO CONTRI CAMPANELLI; PAULO SERGIO CARVALHO PEREIRA DA SILVA; JOSÉ GUILHERME ALVARENGA BATISTA SIMÕES; MILTON SERGIO FERNANDES DE LIMA; ÁLVARO JOSÉ DAMIÃO; CLAUDEMIRO BOLFARINI. Assessment of the Fatigue Behavior of Ti-6Al-4V ELI Alloy with Surface Treated by Nd:YAG Laser Irradiation. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 22, n. 4, p. -, 2019. Web of Science Citations: 0.
CAMPANELLI, LEONARDO CONTRI; COURY, FRANCISCO GIL; GUO, YAOFENG; CARVALHO PEREIRA DA SILVA, PAULO SERGIO; KAUFMAN, MICHAEL JOSEPH; BOLFARINI, CLAUDEMIRO. The role of twinning and nano-crystalline omega phase on the fatigue behavior of the metastable beta Ti-15Mo alloy. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v. 729, p. 323-330, JUN 27 2018. Web of Science Citations: 5.
CARVALHO PEREIRA DA SILVA, PAULO SERGIO; CAMPANELLI, LEONARDO CONTRI; ESCOBAR CLAROS, CESAR ADOLFO; FERREIRA, TALES; OLIVEIRA, DIEGO PEDREIRA; BOLFARINI, CLAUDEMIRO. Prediction of the surface finishing roughness effect on the fatigue resistance of Ti-6Al-4V ELI for implants applications. INTERNATIONAL JOURNAL OF FATIGUE, v. 103, p. 258-263, OCT 2017. Web of Science Citations: 9.
CAMPANELLI, LEONARDO CONTRI; PEREIRA DA SILVA, PAULO SERGIO CARVALHO; CAMARINHO OLIVEIRA, NILSON TADEU; BOLFARINI, CLAUDEMIRO. Effect of the modification by titanium dioxide nanotubes with different structures on the fatigue response of Ti grade 2. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 20, n. 2, p. 120-124, 2017. Web of Science Citations: 1.
LEONARDO CONTRI CAMPANELLI; PAULO SERGIO CARVALHO PEREIRA DA SILVA; NILSON TADEU CAMARINHO OLIVEIRA; CLAUDEMIRO BOLFARINI. Effect of the modification by titanium dioxide nanotubes with different structures on the fatigue response of Ti grade 2. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 20, p. -, 2017.

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