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Abstract The current work presents the nano-finishing of high strength β-type Ti-35Nb-7Ta-5Zr (β-TNTZ) alloy through magnetorheological (MR) fluid assisted magnetic abrasive finishing (MR-MAF) for required orthopedic applications, especially knee and… Click to show full abstract
Abstract The current work presents the nano-finishing of high strength β-type Ti-35Nb-7Ta-5Zr (β-TNTZ) alloy through magnetorheological (MR) fluid assisted magnetic abrasive finishing (MR-MAF) for required orthopedic applications, especially knee and acetabular cup. The β-TNTZ alloy developed using the vacuum arc melting process was subjected to a three-stage heat-treatment process, including heating, cryogenic solution quenching, and aging, to attain the suitable mechanical properties. The morphological analysis of the heat-treated alloy indicated the formation of ‘β’, ‘α’ and nanostructured ‘ω’ phases that obtained high compressive strength and surface hardness as 1195 MPa and 515HV, respectively. Further, the MR-MAF processing of the heat-treated β-TNTZ alloy has resulted in attaining ultra-precision finishing in the range of 9 nm, which can reduce friction and improve the trobological performance of implants.
Journal Title: Materials Letters
Year Published: 2020
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