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Published in:
2021 | OriginalPaper | Chapter
Influence of Thermo-Mechanical Processing on Microstructure, Mechanical Properties and Corrosion Behavior of Ti-6Al-6Mo Implant Alloy
Authors : Ika Kartika, Fendy Rokhmanto, Yudi Nugraha Thaha, Ibrahim Purawiardi, I. Nyoman Gede Putrayasa Astawa, Aprilia Erryani, Talitha Asmaria
Published in: Proceedings of the 1st International Conference on Electronics, Biomedical Engineering, and Health Informatics
Publisher: Springer Singapore
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Abstract
In this work, titanium alloy with additional aluminum and molybdenum is expected to be used as a clip aneurysm material. Thermo-mechanical processing (TMP) is required to achieve excellent workability in this alloy. The TMP of Ti-6Al-6Mo alloy composition has been successfully prepared. The alloy was homogenized at 1100 °C–12 h. The method is then continued to solution treatment with T = 1100 °C–30 min and hot-rolled by 80% deformation. The last method is heat-treated with T = 1100 °C–1 h followed by quenching in different media of air, water, and ice. The corrosion behavior of this alloy was investigated using Hank’s solution by polarization method. In the Ti-6Al-6Mo alloy with a hardness value of 44.4 HRc, the TMP and the quenching in water obtained various nucleations of the α-phases, less of the lamellar α-phase and less of the α-colony. The water-quenched Ti-6Al-6Mo alloy has excellent passive film stability and is more likely to increase the alloy corrosion efficiency.