It was found that with increased milling time, powders became equiaxed , the size of composite powders gradually became to magnitude of nanometer and the distribution of particle size became narrow.

• 结果表明：随着球磨过程的进行，Ti-48at%25Al颗粒逐渐等轴化，粒度变小并逐渐细化至纳米尺寸，粒度分布变窄。