Effect of microstructural parameters on the properties of W-Ni-Fe alloys  

作　　者：S.H. Islam QU Xuanhui S.J. Askari M. Tufail and HE Xinbo 

机构地区：[1]School of Materials Science and Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China [2]Department of Industrial ＆ Manufacturing Engineering, NED University of Engineering ＆ Technology Karachi-75270, Pakistan

出　　处：《Rare Metals》2007年第3期200-204,共5页稀有金属（英文版）

摘　　要：The aim of this research was to examine the effect of microstructural parameters on the tensile properties of different compositions of tungsten heavy alloys. The microstructural parameters （grain size, connectivity, contiguity, and solid volume fraction） were measured and were found to have a significant effect on the tensile properties of tungsten-based heavy alloys. The microstructural parameters of W-Ni-Fe alloys are sufficiently different to present a range of mechanical properties. It is concluded that the mechanical properties of tungsten heavy alloys largely depend on the microstructural parameters and their ductility is particularly harmed when grains are contiguous.The aim of this research was to examine the effect of microstructural parameters on the tensile properties of different compositions of tungsten heavy alloys. The microstructural parameters （grain size, connectivity, contiguity, and solid volume fraction） were measured and were found to have a significant effect on the tensile properties of tungsten-based heavy alloys. The microstructural parameters of W-Ni-Fe alloys are sufficiently different to present a range of mechanical properties. It is concluded that the mechanical properties of tungsten heavy alloys largely depend on the microstructural parameters and their ductility is particularly harmed when grains are contiguous.

关 键 词：tungsten heavy alloys tensile properties solid volume fraction CONTIGUITY 

分 类 号：TG146.411[一般工业技术—材料科学与工程] TG115.5[金属学及工艺—金属材料]