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采用真空热压及热静液挤压将机械合金化Ａｌ－Ｔｉ合金粉末固结成形。测试了挤压棒材的机械性能，并对材料的微观组织结构进行了分析。结果表明，球磨使钛过饱和地溶解于铝基体中，在热固结成形过程中，以细小弥散分布的Ａｌ３Ｔｉ金属间化合物（约３０ｎｍ）析出。由于Ａｌ３Ｔｉ对晶内位错滑移的阻碍作用，使合金强度提高。合金的晶粒细小（约０．３μｍ），且由于Ａｌ３Ｔｉ对晶界迁移的阻碍作用，晶粒尺寸在４００℃热处理时长大不明显，故Ａｌ３Ｔｉ弥散相具有良好的抗粗化能力，使得Ａｌ－Ｔｉ合金具有较好的热稳定性。
The mechanical alloying Al-Ti alloy powder is formed by vacuum hot pressing and hot hydrostatic extrusion. The mechanical properties of extruded bar were tested and the microstructure of the material was analyzed. The results show that the ball mill saturates the titanium in the aluminum matrix and precipitates in the form of fine and dispersed Al3Ti intermetallics (about 30 nm) during thermosetting forming. Due to Al3Ti dislocation on the intracrystalline dislocation slip effect, so that the alloy strength. Due to the obstruction of Al3Ti on the grain boundary migration, the grain size of Al3Ti is not obvious when it is heat-treated at 400 ℃, so Al3Ti dispersed phase has good anti-roughening ability, and Al- Ti alloy has good thermal stability.