Friction reduction in beta titanium arch wires by structural changes through heat treatment
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The goal of this study was to reduce the friction in beta titanium arch wires through heat treatment to precipitate omega phase, which would increase the hardness of the alloy. The result of increased hardness is reduced friction. Efforts were made to keep the elastic properties of the wire. The study design was based on heat treatment temperatures recommended for this particular alloy by the American Society of Metal. Changes were made to balance the final results in accordance to what is needed in orthodontics. After heat treatment, the elasticity of wires was measured with 3 point bending test and friction was measured with Vickers’s hardness test. The results were used as a guide for the heat treatment temperatures and timings to developed a group of wires in which the hardness was increased and the elasticity was favorable. The conclusion is that the precipitation of the Omega phase is an approach for reducing friction in the beta titanium wire. The next step for this research is to incorporate our findings in the production phase of the wires.
Thesis (MSD) --Boston University Institute for Dental Research and Education, Dubai, 2012Includes bibliographic references: leaves 62-63.
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