高能球磨与热压烧结制备TiAl基合金  

Preparation of TiAl-based Alloys by High-energy Ball-milling and Hot-pressing Sintering

作　　者：王天国[1] 邵刚勤[1] 段兴龙[1] 史晓亮[1] 孙鹏[1] 李勇[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《机械工程材料》2007年第1期32-34,共3页Materials For Mechanical Engineering

基　　金：教育部科学技术重点研究资助项目(105123)

摘　　要：研究了高能球磨与热压烧结制备TiAl基合金的工艺。结果表明:在同一热压烧结工艺下,球磨时间越长,烧结试样的密度越大。以球磨40 h的粉末为原料,经1 300℃热压烧结可获得密度高达3.971 g/cm3的近全致密的TiAl基合金,且得到的TiAl基合金晶粒较小,组织均匀。TiAl-based alloys were prepared by high-energy ball-milling and hot-pressing sintering. With the milling time increasing, the densities of the alloys became higher in the same process of hot-pressing sintering. The density of the TiAl alloy with near-full density obtained by hot-pressing sintering at 1 300 ℃ from the powder milled for 40 h is 3. 971 g/cm^3. Homogeneous microstructure of TiAl-based alloys with fine grains is obtained.

关 键 词：高能球磨 热压烧结 TIAL基合金 

分 类 号：TB331[一般工业技术—材料科学与工程] TQ174[化学工程—陶瓷工业]