Abstract:

In this study, the Ti-50,5Ni-xAl (x=0, 2, 4) alloy was produced with the SHS from the powder metallurgy methods. The effects of the Al ratio in the produced NiTiAl alloys on the microbuildings and microsertifications of samples have been detailed. The microanalysis was detected by the optical microscope and the scanned electron microscope (SEM), while the phase components were detected by the energy-distributed spectroscopy (EDX) and the X-string breakdown device (XRD) analysis. Hardness measurement tests are performed on the Vickers (Hv) microserity measurement device. During the burning reaction that began as a result of the exothermic reaction after burning, the temperature change occurred on the surface was detected by the laser temperature measurement device. As a result of optical microscope(OM) analysis, the portion rate increased due to the increase in Al content. In the Al-extraordinary NiTi sample, it was also seen that the burning channels were intense. In both EDX and XRD analysis results, the presence of NiTi, NiTi2 and Ti3Al phases in alloys was detected. The surface temperature measurement results resulted in the lowest burning reaction, while the highest 550 °C was measured at 1250 °C. The lowest hardness value in microsensity measurement results is 176.8 HV0.1 network. 4 % is obtained from the Al sample, while the highest value is measured in the 301.7 HV NiTi sample.

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