The microstructural properties and thermodynamic parameters before and after abrasion were examined for a bulk Cu₈₆Al₁₀Ta₄ (%wt.) shape memory alloy produced by the arc-melting method. From the XRD and SEM–EDX microstructural analysis, it was found that the alloy provided \(\alpha\)(Cu), \({\gamma }_{1}\)(Cu₉Al₄), \({\gamma }_{1}^{\prime}(2H)\), \({\beta }_{1}^{\prime}(18R)\), and Ta₂Al₃ phases before wear, while, after abrasion, depth grooves, wear debris, and ridges and delamination structures were observed. In the forward phase transformation, the DSC result displayed a single narrow peak, which represented \({\beta }_{1}\to {\gamma }_{1}^{\prime}\), which for the reverse martensitic phase transformation the peak was wide and displayed \({\gamma }_{1}^{\prime}\to {\beta }_{1}\). It was observed that the volume and mass losses, friction coefficient, wear coefficient, and wear rates are affected by changing the distance and applying load. The value of phase transformation temperatures, enthalpy, entropy, Gibbs free energy, and elastic energy of the bulk material changed after abrasion. Moreover, the post wear alloy exhibited shape memory behavior in both the heating and cooling processes.

对通过电弧熔化法生产的块状 Cu ₈₆ Al ₁₀ Ta ₄ (%wt.) 形状记忆合金在磨损前后的微观结构性能和热力学参数进行了检查。从 XRD 和 SEM-EDX 显微结构分析发现，该合金提供了\(\alpha\) (Cu), \({\gamma }_{1}\) (Cu ₉ Al ₄ ), \({\ gamma }_{1}^{\prime}(2H)\)、\({\beta }_{1}^{\prime}(18R)\)和 Ta ₂ Al ₃磨损前的阶段，而在磨损后，观察到深槽、磨屑、脊和分层结构。在正向相变中，DSC 结果显示单个窄峰，代表\({\beta }_{1}\to {\gamma }_{1}^{\prime}\)，代表反向马氏体相变峰宽并显示\({\gamma }_{1}^{\prime}\to {\beta }_{1}\). 观察到体积和质量损失、摩擦系数、磨损系数和磨损率受改变距离和施加载荷的影响。磨损后块体材料的相变温度、焓、熵、吉布斯自由能和弹性能的值发生变化。此外，磨损后合金在加热和冷却过程中都表现出形状记忆行为。