EFFECT OF TUNGSTEN ADDITION ON MECHANICAL PROPERTIES OF Fe3Al-BASED ALLOYS
来源期刊：中国有色金属学报(英文版)1999年第2期
论文作者：Xue Feng Sun Yangshan
文章页码：292 - 296
Key words：Fe3Al ,W ,mechanical properties
Abstract: The microstructure and mechanical properties of Fe3Al-based alloys containing tungsten were investigated. Tungsten added to Fe3Al-based alloys results in significant increases of tensile strength and creep rupture life, but slight decrease of RT ductility. The addition of tungsten combined with niobium or molybdenum is more effective on improving creep resistance and yield strength at the high temperature of 600℃. Microstructure observations indicate that the addition of tungsten causes the microstructure refinement and formation of M6C type precipitates which strengthen both the matrix and grain boundaries.
