CuAlNi alloy has been extensively researched for having specific characteristics such as the shape memory effect. There are several methods of alloy manufacturing understudy, and powder metallurgy technique stands out because it has some advantages over other methods. Several factors influence obtaining the alloy by this technique, such as milling time. This work presents the influence of high-energy milling time on characteristics such as porosity, microhardness and Cu-13Al-4Ni alloy phase formation by the powder metallurgy process. It was observed that high-energy milling provided mechanical bonding between the elements involved in the alloy manufacture by modifying the individual characteristics of each, such as lowering the elements melting temperature, favoring the sintering process. The high-energy milling time of elemental powders involved in alloy manufacture influenced directly the alloy final quality. It was observed that the most suitable milling time related to densification of the alloy using the techniques and parameters of this work was 4 h. Samples that had been ground for 16 h did not show good densification.

为了具有诸如形状记忆效应的特定特征，已经对CuAlNi合金进行了广泛的研究。目前有几种研究合金制造的方法，而粉末冶金技术之所以能脱颖而出，是因为它比其他方法更具优势。有几种因素会影响通过这种技术获得合金的时间，例如铣削时间。这项工作提出了高能铣削时间对粉末冶金过程中孔隙率，显微硬度和Cu-13Al-4Ni合金相形成等特性的影响。可以看出，高能铣削通过改变每种合金的各自特性（例如降低元素的熔化温度，有利于烧结工艺），在合金制造中涉及的元素之间提供了机械结合。合金生产中涉及的元素粉末的高能研磨时间直接影响合金的最终质量。据观察，使用这项工作的技术和参数，与合金致密化相关的最合适的铣削时间为4小时。研磨16小时的样品未显示出良好的致密性。