The influence of milling rate in range from 125r/min to 225r/min and the ad dition of from 0%to 4. 5%of the process control agents ethanol,stearic acid on the mechanical alloyi ng of a Ti-Cr alloy h as been investigated.The results sh ow that the higher t he milling rate,the smaller the powders as other milling conditions are unchang ed.Ethanol as a useful process control a gent lowes the impurity level during M A processing,but results in reduced fining efficiency.The reco mended addition of ethanol is under 1.5%.The abrasion of either milling balls or milling j ar can be controlled by optimizing the milling r ate and selection the best proc ess co ntrol agent.