Arudi, Ishiaka Shaibu and Hamzah, Esah and Yajid, Muhammad Azizi Mat and Bushroa, A. R. and Munshi, Shadi M. and Al-Ashhab, M. S. and Ibrahim, Mahmoud Z. (2023) Taguchi optimization of hardness and scratch adhesion strength of multilayer Ti/TiN coatings on Ti-51 at%Ni alloy deposited via magnetron sputtering technique. Journal of Materials Research and Technology-JMR&T, 27. pp. 7664-7672. ISSN 2238-7854, DOI https://doi.org/10.1016/j.jmrt.2023.11.166.
Full text not available from this repository.Abstract
The near equiatomic Ti-51at %Ni alloy has excellent corrosion resistance, strength, shape memory and pseudoelastic behaviour. However, it is lacking biocompatibility due to the release of hazardous Ni-ions when used as an implant. Thus, this research proposes optimizing the fabrication of multilayer Ti/TiN coating on Ti-51at %Ni alloy using magnetron sputtering. The hardness and adhesion strength are crucial properties to sustain external bearing loads and to ensure the durability of the coating. The process parameters of magnetron sputtering were optimized using Taguchi method. The analysis showed that optimum adhesion strength was obtained at 370 W, 100 degrees C, 50 V and 5 sccm with respect to DC power, substrate temperature, bias voltage and nitrogen flow, respectively. Whereas, the optimum hardness was obtained at 370 W, 150 degrees C, 75 V and 5 sccm. The confirmation test evidenced the hardness and adhesion strength improvement by 6.83 % and 10.74 %, respectively. The results of the optimized substrate surface showed a dense and compact growth of the deposited layer with the absence of cracks and pores. Finally, this research demonstrated a promising durable multilayer Ti/TiN coating on Ti-51at %Ni for biomedical applications.
| Item Type: | Article |
|---|---|
| Funders: | University Research Grant (Q. J1300000.2524.18H99) |
| Uncontrolled Keywords: | Ti/TiN coating; DC magnetron sputtering; Taguchi method; Process parameter; Optimization |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 09 Sep 2025 06:24 |
| Last Modified: | 09 Sep 2025 06:24 |
| URI: | http://eprints.um.edu.my/id/eprint/50577 |
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