Effect of surface treatments on the fatigue life of titanium for biomedical applications

Journal of the Mechanical Behavior of Biomedical Materials
L PazosH Svoboda

Abstract

Many surface treatments that are used in cementless and endosseous implants modify the topography and the roughness to increase the implant-bone contact area and thus favor bio-mechanical anchorage, shortening the period of osseointegration. Nevertheless, the effects that the surface treatments can have on the fatigue life of the material are not generally considered. In this sense, the superficial condition of the component is one of the features that affect the fatigue strength, specially the fatigue crack nucleation. The fatigue behaviour of annealed commercially pure titanium grade 4 was studied. The surface treatments used were acid etching, shot blasting and a dual treatment of blasting + acid etching. An as-machined surface condition was used as a reference. Topography, roughness, surface defects, microstructural changes and residual stresses were characterized in each case. Rotating-bending fatigue tests of each surface condition were conducted at room temperature with a frequency of 33 Hz. S-N curves and Basquin equations were obtained based on the results of these tests. Tested samples were also characterized to evaluate fatigue damage. The acid etching decreases the fatigue endurance, while the blasting and blasting ...Continue Reading

References

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Jan 1, 2008·Journal of the Mechanical Behavior of Biomedical Materials·Mitsuo Niinomi

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Citations

May 28, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Jana HavlikovaLucie Bacakova
Mar 5, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Hamidreza FarnoushFathollah Moztarzadeh
Sep 29, 2011·Acta Biomaterialia·Renato Altobelli Antunes, Mara Cristina Lopes de Oliveira
Jun 24, 2014·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Amirhossein KetabchiFabio Variola
Sep 1, 2014·Journal of the Mechanical Behavior of Biomedical Materials·K Shemtov-YonaA Dorogoy
Jun 12, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Cesar Adolfo Escobar ClarosClaudemiro Bolfarini
Jun 4, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Alexander E MedvedevFlorian Dalla Torre
Nov 20, 2015·BioMed Research International·Keren Shemtov-Yona, Daniel Rittel
Oct 5, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Leonardo Contri CampanelliNilson Tadeu Camarinho Oliveira
Sep 29, 2017·Dental Materials Journal·Kaoru SuzukiKaoru Sakurai
Nov 22, 2018·Perspectives on Psychological Science : a Journal of the Association for Psychological Science·Patrick Gaudreau
Jun 28, 2018·Journal of Materials Science. Materials in Medicine·J V Ríos-SantosF J Gil
Aug 9, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Stanislava FintováPavel Hutař

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