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The effects of severe plastic deformation on some properties relevant to Ti implants

Mendes Filho, Anibal Andrade, Sordi, Vitor Luiz and Ferrante, Maurizio 2012, The effects of severe plastic deformation on some properties relevant to Ti implants, Materials research, vol. 15, no. 1, pp. 27-31, doi: 10.1590/S1516-14392011005000102.

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Title The effects of severe plastic deformation on some properties relevant to Ti implants
Author(s) Mendes Filho, Anibal Andrade
Sordi, Vitor Luiz
Ferrante, Maurizio
Journal name Materials research
Volume number 15
Issue number 1
Start page 27
End page 31
Total pages 5
Publisher Universidade Federal de Sao Carlos * Departamento de Engenharia de Materiais
Place of publication São Carlos, Brazil
Publication date 2012-01
ISSN 1516-1439
1516-1439
Keyword(s) cold rolling
titanium
orthopaedic implants
Summary In some types of surgical implants, such as bone screws and plates, Grade 2 Ti is seriously considered as a replacement for the Ti-6Al-4V alloy. Advantages are lower cost and the absence of Al and V, which have been identified as potentially harmful to human health. The present paper shows that the lower strength of the commercially pure metal can be enhanced by Severe Plastic Deformation followed by conventional cold rolling, so as to reach a strength level higher than the technical requirements applicable to the alloy. This was ascertained by tensile and Vickers hardness tests from which it was concluded that the best combination of properties are obtained by submitting the metal to Equal Channel Angular Pressing (four passes at 300 °C) followed by a 70% thickness reduction by cold rolling. Although the present results are valid for the material only, and not for the product considered, that is, bone screws, it appears that this solution is a step towards the replacement of the Ti6-4 alloy by Grade 2 Ti, at least for some types of metallic medical implants.
Language eng
DOI 10.1590/S1516-14392011005000102
Field of Research 099999 Engineering not elsewhere classified
0912 Materials Engineering
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2012, Materials Research Ibero-american Journal of Materials
Free to Read? Yes
Use Rights Creative Commons Attribution non-commercial licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30087316

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.