南京航空航天大学学报（英文版）2000，Vol.17Issue(2)：135-139,5.
Fe3Al基合金拉伸和蠕变性能的改进
IMPROVEMENT ON TENSILE PROPERTIES AND CREEP RESISTANCE OF Fe3Al-BASED ALLOYS
摘要
Abstract
Effects of alloying processing on tensile test properties of Fe3Al-based alloys have been studied. Results show that microalloying of cerium is very effective on increasing the room temperature ductility of Fe3Al-based alloys. Surface analysis by XPS demonstrates that cerium addition causes the change in the oxide chemistry and provides rapid passivation of the specimen surface. The high temperature strength and creep resistance of Fe3Al-based alloys can be significantly enhanced by alloying additions of tungsten, niobium or molybdenum, especially when combined additions of tungsten with niobium or molybdenum are used. The additions of tungsten, niobium or molybdenum also result in the significant microstruetural refinement and the formation of fine precipitates which are identified as M6C-type carbide in the alloys containing tungsten.关键词
材料/Fe3Al/拉伸和抗蠕变性能/微合金化Key words
materials/Fe3A1/tensile and creep resistance properties/microalloying分类
航空航天引用本文复制引用
姚正军,孙扬善..Fe3Al基合金拉伸和蠕变性能的改进[J].南京航空航天大学学报（英文版）,2000,17(2):135-139,5.基金项目
Supported by National Advanced Materials Committee of China.国家先进材料委员会基金资助项目. （）
