北华大学学报（自然科学版）2017，Vol.18Issue(3)：299-302,4.DOI:10.11713/j.issn.1009-4822.2017.03.004
Al85 Ni10 Er5非晶合金晶化动力学效应的研究
Preparation and Kinetics of Crystallization of Al85 Ni10 Er5 Amorphous Alloy
摘要
Abstract
Al85 Ni10 Er5 amorphous alloys were prepared by melt-spinning method. Preparation and kinetics of crystallization of Al85 Ni10 Er5 alloy were studied by the differential scanning calorimetry ( DSC ) , and the first primary crystallization activation energy (Ex) of Al85 Ni10 Er5 amorphous alloys was obtained as 104 kJ/mol. The topological instability parameter λ of Al85 Ni10 Er5 amorphous alloy was calculated as 0. 087, indicating that Al85 Ni10 Er5 alloy is nanocrystalline alloy. The curves of relation of crystallized fraction with temperature at different heating rates exhibited as a function of "S" shape. A linear relationship was observed,which values of crystallization activation energy Ea( x) decreased with crystallized fraction x increased. In addition,crystallization activation energy E a ( x ) is greater than the primary crystallization activation energy ( E x ) in the crystallized volume fraction from 10% to 50%. The results indicated that further growth of primary crystalline phase was effectively hindered by the disordered atom cluster structure in Al85 Ni10 Er5 amorphous alloy.关键词
铝基非晶合金/晶化动力学/晶化激活能Key words
Al-based amorphous Alloy/crystallization kinetics/crystallization activation energy分类
矿业与冶金引用本文复制引用
牛犇,高辉,张春志,杨爽..Al85 Ni10 Er5非晶合金晶化动力学效应的研究[J].北华大学学报（自然科学版）,2017,18(3):299-302,4.基金项目
哈尔滨石油学院科研基金项目(HIP2015011) （HIP2015011）
黑龙江省教育科学规划课题(GJD1316027). （GJD1316027）
