%0 Journal Article
%T Preliminary evaluations on development of new materials for hip joint femoral head
%A Amar Patnaik
%A Amit Aherwar
%A Amit Singh
%A Marjan Bahraminasab
%J Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
%@ 2041-3076
%D 2019
%R 10.1177/1464420717714495
%X Development and selection of a proper biomaterial with diverse properties (i.e. physical, mechanical, wear, corrosion, and many others) for hip femoral head is one of the most exigent tasks. Improper material often causes component failure during functioning. Therefore, in this study, a series of implant materials containing tungsten of different weight percentages were fabricated by high temperature vacuum casting induction furnace and the physical, mechanical, wear, and corrosion properties were examined. The proportions were varied from 0ˋwt% to 4ˋwt% in a cobalt每chromium alloy (Co每30Cr每4Mo每1Ni). The mechanical properties were tested by the micro-hardness tester and the compression testing machine, while the wear performance was analyzed through a pin-on-disc tribometer under different operating conditions at room temperature. Corrosion resistance was analyzed under NaCl solution by the electrochemical test method. Due to the conflict between the properties obtained, the Vise Kriterijumska Optimizacija Kompromisno Resenjemeaning (VIKOR) method integrated with analytic hierarchy process (AHP) was applied to choose the best material among the set of alternatives, where AHP was used to determine criteria weights, and VIKOR approach was used to rank the alternatives. From the results obtained, it was found that Co每30Cr每4Mo每1Ni implant material containing 2ˋwt% tungsten provides the best combination of the properties for a given application (i.e. hip femoral head)
%K Material selection
%K multi-criteria decision-making
%K analytic hierarchy process-Vise Kriterijumska Optimizacija Kompromisno Resenjemeaning method
%K ranking
%K implant material
%U https://journals.sagepub.com/doi/full/10.1177/1464420717714495