Abstract
Recent years have witnessed much progress in medical device manufacturing and the needs of the medical industry urges modern nanomaterials science to develop novel approaches for improving the properties of existing biomaterials. One of the ways to enhance the material properties is their nanostructuring by using severe plastic deformation (SPD) techniques. For medical devices, such properties include increased strength and fatigue life, and this determines nanostructured Ti and Ti alloys to be an excellent choice for the engineering of implants with improved design for orthopedics and dentistry. Various reported studies conducted in this field enable the fabrication of medical devices with enhanced functionality. This paper reviews recent development in the field of nanostructured Ti-based materials and provides examples of the use of ultra-fine grained Ti alloys in medicine.
Highlights
Ti and its alloys represent the top choice when a combination of high strength, light weight, and affordable cost are required, such as in the area of medical device manufacturing
This review article outlines the progress in engineering of advanced nanostructured Ti alloys and medical implants/devices manufactured from those advanced materials
Recent studies studies have have proven proven that that nanostructuring nanostructuring of titanium materials materials by means of of severe severe plastic plastic deformation (SPD)techniques techniques achieving refinement, of dislocation density, deformation (SPD)
Summary
Ti and its alloys represent the top choice when a combination of high strength, light weight, and affordable cost are required, such as in the area of medical device manufacturing. Equal channel angular pressing (ECAP) and high pressure torsion (HPT), introduced already in the pioneering works [3], remain the most used methods for the production of ultrafine-grained (UFG) materials Principles of these techniques, developed devices and microstructure evolution during processing steps have been thoroughly reviewed in numerous studies [3,4,5,6,7,9,10]. Materials scientists have been exploring possibilities of improved interaction of nanostructured materials with body tissues, for instance bones In this respect, surface modifications of bulk nanomaterials demonstrate encouraging results [17,18,20,21]. This review article outlines the progress in engineering of advanced nanostructured Ti alloys and medical implants/devices manufactured from those advanced materials
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