In this research, the mechanical alloying (MA) technique was used to study solid solubility in the immiscible Zr–Cr alloy system. At first, Zr and Cr powders were milled, and then, the phase evolution, alloying mechanism, microstructural change, and mechanical properties of the milled powders were investigated by X-ray diffraction technique, scanning electron microscopy along with energy dispersive spectroscopy, transition electron microscopy, and microhardness measurements. Moreover, the solubility limit of Zr in Cr lattice was obtained by Vegard's law. The results showed that the MA was significantly enhanced the solubility of Zr in Cr up to about 21.6 wt% after an optimum milling time of 32 h and led to form an amorphous/nanocrystalline composite of Zr-reach and Cr-reach supersaturated solid solutions with the microhardness value of 503 Hv approximately. Also, the thermodynamic analysis indicated that the Gibbs free energy changes for the amorphous and solid solution were positive, which were provided by the MA process.

在这项研究中，机械合金化（MA）技术用于研究在不相溶的Zr-Cr合金体系中的固溶度。首先研磨Zr和Cr粉末，然后通过X射线衍射技术，扫描电子显微镜，能量色散谱，过渡电子研究粉末的相演变，合金化机理，显微组织变化和力学性能。显微镜和显微硬度测量。另外，通过Vegard定律求出Zr在Cr晶格中的溶解度极限。结果表明，MA显着提高了Zr在Cr中的溶解度，最高达到约21。经过32 h的最佳研磨时间后，其含量为6 wt％，并导致形成Zr到达和Cr到达的过饱和固溶体的非晶/纳米晶体复合材料，其显微硬度值约为503 Hv。此外，热力学分析表明，非晶态和固溶体的吉布斯自由能变化为正，这是由MA过程提供的。