|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Fatigue and Fracture III
||The Effect of Heat Treatment and Alloying of Ni-Ti Alloy with Copper on Improving Its Fatigue Life
||Wisam Abu Jadayil, Duaa Sehan
|On-Site Speaker (Planned)
Ni-Ti alloys have achieved great importance in industry, mainly for their innovative use in practical medical applications. A major reason for that is their fatigue lives. In this research, fatigue life of different Ni-Ti alloys have been investigated for different composition Ni-Ti alloy samples and different percentages Copper additions. Three major compositions were investigated under different fatigue loading. The first group of samples had a composition of Ni47.8Ti42.2, and the remaining 10 % were Copper. A second group of samples with a composition of Ni52.8Ti42.2 and 5 % of copper, and a third group pf samples with a composition of Ni47.8Ti47.2 and 5 % of copper. These samples were prepared by casting. Comparison between fatigue lives of the prepared samples and the Ni52.8Ti47.2 sample was made, once without heat treatment of samples and once with heat treatment to find the best alloy composition with the best fatigue life. It was found that adding Copper would improve the fatigue life of NiTi such that Ni has significantly higher percentages than Ti. Moreover, heat-treating the NiTiCu alloy would improve its fatigue life by almost 10 %.
||Planned: Supplemental Proceedings volume