In this study, it is aimed to investigate the effects of NiTiCd alloy, which is formed by adding Cd element to NiTi shape memory alloys, on some physical and chemical parameters. The chemical compositions (% atomic) of the produced alloys were prepared as Ni₄₈Ti₅₀Cd₂ and Ni₄₆Ti₅₀Cd₄. Some thermodynamic parameters of these samples were investigated by DSC, structural analysis by SEM-EDX and XRD, hardness by Vickers microhardness method and corrosion behaviour by electrochemical method. The thermal activation energy required for phase transformations of alloys was calculated using the Kissinger and Ozawa methods. The average thermal activation energies obtained from the two methods are 85.76 kJ mol^–1 for Ni₄₈Ti₅₀Cd₂ SMA and 106.93 kJ mol^–1 for Ni₄₆Ti₅₀Cd₄ SMA. The XRD and SEM-EDX analyses indicated that the Ti element was the dominant constituent in the precipitate microstructures. It was found that with an increasing amount of cadmium, the microhardness of NiTi alloy decreases. It was calculated that Ni₄₆Ti₅₀Cd₄ SMA has the best corrosion resistance compared to Ni₄₈Ti₅₀Cd₂ alloys in terms of corrosion analysis.

本研究旨在研究在NiTi形状记忆合金中添加Cd元素形成的NiTiCd合金对某些物理和化学参数的影响。所生产的合金的化学组​​成(％原子)被制备为Ni ₄₈ Ti ₅₀ Cd ₂和Ni ₄₆ Ti ₅₀ Cd ₄。通过DSC研究了这些样品的一些热力学参数，通过SEM-EDX和XRD进行了结构分析，通过维氏显微硬度法进行了硬度分析，通过电化学方法研究了腐蚀行为。使用基辛格和小泽方法计算合金相变所需的热活化能。两种方法获得的平均热活化能为Ni ₄₈ Ti ₅₀ Cd _{2 SMA 为85.76 kJ mol} ^–1 ， Ni ₄₆ Ti ₅₀ Cd ₄ SMA 为106.93 kJ mol ^–1。XRD 和 SEM-EDX 分析表明 Ti 元素是沉淀物微观结构的主要成分。研究发现，随着镉含量的增加，NiTi合金的显微硬度降低。腐蚀分析结果表明，与Ni 48 Ti 50 Cd 2 合金相比，Ni ₄₆ Ti ₅₀ Cd ₄ SMA_具有最好_的耐_腐蚀性能。