TiB<sub>2</sub>金属陶瓷与TiAl的自蔓延高温合成连接

TiB₂金属陶瓷与TiAl的自蔓延高温合成连接

基金项目: 国家自然科学基金资助项目(50175021)

National Key Lab of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China

摘要: 自蔓延高温合成(SHS)技术是一项近年来迅速兴起并广泛应用于多种领域的新技术,文中采用SHS技术对TiB₂金属陶瓷与TiAl进行了连接试验并对SHS连接接头的界面结构进行了分析。试验表明,采用SHS方法连接TiB₂金属陶瓷与TiAl时界面结构复杂,在TiAl侧界面处出现了TiAl₃反应层,在中间层中出现了Ti-Al系产物的环状结构;在TiB₂金属陶瓷侧界面处发现了贫Cu层的存在。
- 自蔓延高温合成 /
- TiB₂金属陶瓷 /
- TiAl /
- 界面结构
Abstract: Self-propagating high-temperature synthesis (SHS) is a new technology that is widely applied in many fields.SHS joining of TiAl inter metallic to TiB₂ cermet was studied.It shows that the micro structure of TiAl/TiB₂ cermet joint was very complex.The TiAl₃ reaction layer in TiAl/interlayer interface and the loop structure of Ti-Al system in interlayer was observed.The poor-Cu layer appeared in TiB₂/interlayer interface.
- self-propagating high-temperature synthesis /
- TiB₂ cermet /
- TiAl /
- microsructure