【摘要】 研究了球磨速度变化(125r/min～225r/min)和不同过程控制剂(乙醇、硬脂酸和二者的混合物)及其加入量(0%～4.5%)对Ti-Cr合金机械合金化(MA)的影响。研究结果表明,球磨速度的高低对所获得的MA粉末的粒度有显著性影响。在其它条件相同的情况下,球磨速度越高,MA的效率越高,粉末的粒度越小。在Ti-Cr合金的MA过程中,使用乙醇作为过程控制剂,能够有效地降低球磨带入的杂质量,但是粉末的细化速度将减慢;乙醇的加入量不宜超过1.5%。硬脂酸不适合用做Ti-Cr合金MA过程的过程控制剂。通过调整球磨速度和合理选用过程控制剂,可以实现对球磨杂质来源的调控。更多还原

【Abstract】 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.更多还原