Synthesis and Characterization Structure and Physical Properties [ 50-xTiNi – x Ag] Shape Memory Alloy

Abstract

In this research, a metal alloy was prepared and its structural and physiological properties were studied. The method of powder technology was used in mixing and mixing powders. The ratio of 1: 1 was mixed with 100 micron granular powder and nickel powder with granular size of 78 microns. The mixture was then reinforced with a nanocrystalline powder with a mixing ratio of 0%, 1%, 3%, 5% and 7%), where the powders were mixed in an effective mechanical mixing method at a rate of 350 rpm and 6 hours continuously. Physical tests (density, hardness, yield strength, young modulus) were performed. The electrical tests were carried out using four sensors (probs) such as resistivity and electrical conductivity, as well as structural tests such as X-ray diffraction and scanning electron microscopy. The results showed a significant improvement in the micro hardness values using Vickers hardness, which resulted in improved yield strength and young modulus respectively. The results of the test showed that the electrical conductivity properties showed a clear reduction in the resistivity values of the alloys supported by the nano-silver powder and an increase in the values of the electrical conductivity compared to the base alloy (nickel-titanium).