RT Journal Article
SR Electronic
A1 Novák, Pavel
A1 Nová, Kateřina
A1 Bernatiková, Adriana
A1 Školáková, Andrea
A1 Salvetr, Pavel
T1 Application of Powder Metallurgy in Production of Biomaterials
JF Manufacturing Technology Journal
YR 2016
VO 16
IS 6
SP 1340
OP 1343
DO 10.21062/ujep/x.2016/a/1213-2489/MT/16/6/1340
UL https://journalmt.com/artkey/mft-201606-0023.php
AB Metallic biomaterials are currently produced mainly by conventional metallurgical processes, i.e. the melting and casting used e.g. in production of cobalt alloy implants, or forming processes as cold or hot working (rolling or forging of stainless steel for surgical applications). Such processes including melting are used also in production of "smart" biomaterials - NiTi shape memory alloys. The mechanical properties are strongly dependent on the grain size. Therefore, the techniques to obtain finer structure are very desirable to enhance the mechanical properties of the biomaterials and thus to increase lifetime of the implant. This paper is devoted to the description of the possibilites of powder metallurgy not only for the structure refinement, but also for the ptoduction of clean biomedical alloys as well as the porous bioamterials. The use of powder metallurgy is described for Co-Cr-Mo surgical alloy, Ni-Ti shape memory alloy and Ti-based porous biomaterial. In addtion to known methods, new powder metallurgy processes and materials developed by the authors are presented.