本文通过对铜粉、钛粉以及石墨粉进行球磨,得到了铜的过饱和固溶体。利用X射线衍射(XRD)技术跟踪分析了整个机械合金化过程,探讨了球磨过程中过程控制剂对于机械合金化进程的影响。用光学显微镜观测了不同阶段粉末的粒度,发现其经历了一个先增大后减小而后趋于稳定的过程,用扫描电镜(SEM)观察了其表面形貌,发现球磨过程中粉末中有裂纹产生,且裂纹也经历了一个产生、扩展而后导致粉末破碎的过程,这和粒度分析是相符的。 In this paper, copper, titanium powder and graphite powder were ball milled to obtain supersaturated copper solid solution. The entire mechanical alloying process was tracked and analyzed by X-ray diffraction (XRD), and the effect of process control agent on the mechanical alloying process during milling was discussed. The particle size of the powders at different stages was observed with an optical microscope and found to undergo a process of first increasing, then decreasing and then stabilizing. The surface morphology was observed with a scanning electron microscope (SEM) and found to be cracked in the powder during ball milling Produced, and cracks also experienced a generation, expansion and then lead to the process of powder crush, which is consistent with the particle size analysis.