W-Fe合金在球磨过程中W相的组织变化  

The Microstructure Changes of W Phase in W-Fe Alloys During Ball Milling

作　　者：吴锵[1] 王恒志[1] 石连捷[1] 

机构地区：[1]南京理工大学材料科学与工程系,南京 210094

出　　处：《南京理工大学学报》2000年第5期473-476,共4页Journal of Nanjing University of Science and Technology

摘　　要：机械球磨是一种制备纳米材料的新工艺。近年来球磨法被进一步应用于制备非晶材料。该文在W5 0 Fe5 0 球磨研究的基础上 ,对W -Fe系合金进行了系统的研究 ,发现球磨时间小于 40 0h时点阵常数保持不变 ,而当球磨时间超过 40 0h时能够得到非晶。该合金系在整个成分范围内都可以实现纳米化。同时 ,W系合金在 40Ball milling is a new process for making nanocrystalline materials. In recent years ball milling has been further applied to amorphous materials.Based on the ball milling works about W 50 Fe 50 alloy, the W-Fe alloys of wider composition were studied systematically. It is found that the lattice parameter of W-Fe alloys keeps invariability before 400 h milling and amorphous state can also be reached in W-Fe alloys after 400 h milling. W-Fe alloy of any composition can be milled into nanocrystalline and the plastic deformation mechanics before 400 h milling is quite diffrerent from that after 400 h milling.

关 键 词：非晶态合金 结构参数 机械球磨 非晶材料 纳米晶 

分 类 号：TG139.8[一般工业技术—材料科学与工程]