Formation of Ni57Zr20Ti22Ge1 amorphous powders by mechanical alloying
作者单位：Department of Materials EngineeringTatung University Department of Materials Science and EngineeringFeng Chia University Institute of Materials EngineeringTaiwan Ocean University
会议名称：《中国颗粒学会第六届学术年会暨海峡两岸颗粒技术研讨会》
会议日期：2008年
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
关 键 词：Mechanical alloying Amorphous phase Supercooled liquid region Glass transition Ni-based alloys
摘 要：In the current study,the amorphization behavior of mechanically alloyed NiZrTiGe powder was examined in *** conventional X-ray diffraction results confirm that the fully amorphous powders formed after 5 hours of milling. The thermal stability of the NiZrTiGe amorphous powders was investigated by differential scanning calorimeter(DSC). As the results demonstrated,the glass transition temperature(T) and the crystallization temperature(T) are 761 K and 839 K, *** supercooled liquid regionΔT is 78 *** appearance of wide supercooled liquid region may be mainly due to the Ge additions which cause the increasing differences in atomic size of mechanically alloyed NiZrTiGe powders.