Mechanics of Materials
Aji Abdillah Kharisma; Haris Rudianto; Achmad Benny Mutiara; Sulistyo Puspitodjati
Abstract
Titanium alloys have been extensively explored and fabricated for uses in several types of engineering fields. Its superior mechanical properties, Ti-10Mo-xCu alloy has potential applications in hip implants. Determining mechanical qualities via experimental methods takes an admittedly long time, especially ...
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Titanium alloys have been extensively explored and fabricated for uses in several types of engineering fields. Its superior mechanical properties, Ti-10Mo-xCu alloy has potential applications in hip implants. Determining mechanical qualities via experimental methods takes an admittedly long time, especially when carried out in compression and tensile testing. Therefore, material design modeling using an MD simulation method approach were used to evaluate the mechanical properties on the compression and tensile tests of the Ti-10Mo-xCu alloy. In this research, material design through computer modeling was carried out at 300 K in the x <100> direction of the Ti-10Mo alloy with the addition of Cu composition at 3wt%, 6wt%, 9wt% to evaluate the properties of the alloy. The simulation results of the addition 3wt%, 6wt%, and 9wt% of Cu has produce maximum stresses of 603 MPa, 160 MPa and 236 MPa. The experimental method in the compression test shows a decrease in the maximum stress in the compression test after addition Cu to the Ti-10Mo alloy. It has the same trend value as the compression test outcomes on the experiment and MD simulation method. The result of tensile strengths for the Ti-10Mo-xCu alloy were 7056.8 MPa, 7238.1684 MPa, and 7433.0969 MPa. In short, the addition of copper of 3wt%, 6wt%, 9wt% successfully increased the tensile strength of the prepared titanium alloys. The results of crack propagation in tensile strength by MD simulation were successfully performed based on the increase at high strain until plasticity occurs in the alloy.