Crystallization kinetics of bulk Cu58.1Zr35.9Al6 alloy

摘要：

The crystallization kinetics of the bulk amorphous Cu58.1Zr35.9Al6 alloy was examined by differential scanning calorimetry under continuous heating and isothermal annealing.During continuous heating,the activation energy of crystallization was determined to be 383 kJ/mol by Kissinger method.However,on the isothermal annealing,the activation energy was determined to be 459.2 kJ/mol by the Arrhenius method,which was much larger than that obtained from the Kissinger method.The different temperatures at which crystallization occurs are responsible for the discrepancy in the activation energy.The average Avrami exponent of about 3.5 implies that the crystallization process of the bulk amorphous Cu58.1Zr35.9Al6 alloy is diffusion-controlled with a nucleation rate decreasing with time.

关键词： Cu58.1Zr35.9Al6 alloy different scanning calorimetry (DSC) crystallization kinetics

作者: WANG Shao-xu ZHU Chun-lei QUAN Shi-guang LI Yan-hui WANG Ying-min WANG Qing DONG Chuang

作者单位: Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,Dalian University of Techno Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,Dalian University of Techno

会议类型: 国际会议

会议名称: 2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)

会议地点: 长沙

会议语种:英文

页码: 1618-1622

在线出版日期: 2009-11-22（万方平台首次上网日期，不代表论文的发表时间）