节点文献
钛铝基合金渗硅层结构及抗高温氧化性能初探
Investigation on Microstructures and Oxidation Resistance of Siliconized Coatings of Ti-48Al Alloy
【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 ,显著提高了钛铝基合金的抗高温循环氧化能力
【Abstract】 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.
【关键词】 钛铝基合金;
金属间化合物;
化学热处理;
氧化;
渗层;
【Key words】 TiAl base alloy; intermetallic compounds; chemical heat treatment; oxidation; coating;
【Key words】 TiAl base alloy; intermetallic compounds; chemical heat treatment; oxidation; coating;
【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)
- 【文献出处】 金属热处理学报 ,Transactions of Metal Heat Treatment , 编辑部邮箱 ,2003年02期
- 【分类号】TG174.44
- 【被引频次】19
- 【下载频次】287