摘要
研究了钛铝基合金固体渗硅后的渗层结构、抗高温循环氧化性能。结果表明 :钛铝基合金固体渗硅后表层形成主要由Ti5Si3 、Al2 O3 和Al3 Ti、TiSi2 、Si构成的复合渗层 ,该复合渗硅层有效阻止了高温氧化过程的进行 。
The microstructures and the cyclic oxidation resistance of the siliconized coatings of Ti 48Al alloy have been studied.SEM analysis and X ray diffraction analysis show that the siliconized coatings are mainly composed of Ti 5Si 3 and Al 2O 3 in addition to some of Al 3Ti, TiSi 2 and Si. These composite coatings exhibited an excellent positive effect for cyclic oxidation resistance, and the cyclic oxidation resistance of Ti 48Al alloy was remarkably improved.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2003年第2期16-19,共4页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金资助 (50 1710 4 6 )
山西省自然科学基金资助( 2 0 0 2 10 51)
关键词
钛铝基合金
金属间化合物
化学热处理
氧化
渗层
TiAl base alloy
intermetallic compounds
chemical heat treatment
oxidation
coating
