陶瓷模材料与TiAl基合金的高温化学相容性研究

INVESTIGATION OF THE CHEMICAL COMPATIBILITY BETWEEN TiAl ALLOY AND CERAMIC MOLD MATERIALS AT HIGH TEMPERATURE

Powder Metallurgical Research Institute, Central South University of Technology, Changsha, China, 410083

摘要: 研究了两种不同成分的陶瓷模材料与TiAl基合金的高温化学相容性。X射线衍射物相分析结果表明,在1000℃下,研究的陶瓷模材料与TiAl基合金不发生化学反应,界面上没有形成新的化合物,两者之间有良好的化学相容性。对TiAl基合金试样表面的电子能谱化学成分分析表明,试样表面没有出现陶瓷模材料中的元素。
- 陶瓷模材料 /
- TiAl基合金 /
- 化学相容性
Abstract: The chemical compatibility between TiAl hased alloy and ceramiC mold materials at 1000℃has been studied. After heat treated at 1000 ℃ in air for 2 hours,the interface between TiAl alloy sample and ceramic mold material was analyzed with X-ray diffraction and energy-dispersive analysis of X-ray (EDAX). Except oxides such as TiO₂ and Al₂O₃,no other compound was found in the interfsce. Therefore,TiAl alloy showed gial chemical compatibility with ceramic mold materials used in the investigation,and it is practicable to make ceramic mold used in TiAl POwder metallurgical technology from the ceramic mold materials mentioned above.
- Chemical compatibility /
- Ceramic mold material /
- TiAl alloy