基于能量守恒原理的块体非晶合金热加工条件下晶化机制的研究

Crystallization Mechanism of Bulk Metal Glass Based on Energy Conservation Principle During Hot Processing

基于能量守恒法,提出了研究块体非晶合金晶化机制研究的新方法。利用DSC方法和Kissinger式计算了块体非晶合金Zr53.7Ni9.4Cu28.5Al8.4在连续升温过程中的晶化激活能。通过对该块体的激光点热源加热试验,验证了该晶化机制模型的正确性。结果表明,Zr53.7Ni9.4Cu28.5Al8.4块体非晶的晶化激活能为220 kJ/mol,所提出的方法可定性地用于该块体非晶晶化机制研究。

Based on the energy conservation, a novel method was proposed to research the crystallization mechanism of bulk metal glass （BMG） during hot processing. The DSC was used to measure the characteristics parameters of BMG Zr53.7Ni9.4Cu28.5Al8.4, during continuous increasing temperature, and the crystallization activation energy was calculated by Kissinger formula based on the DSC results. The laser dot resource experiment was given to verify the crystallization mechanism model. The results show that the crystallization activation energy of the BMG Zr53.7Ni9.4Cu28.5Al8.4 is 220 kJ/mol, and the method could be used to study the crystallization mechanism of the BMG Zr53.7Ni9.4Cu28.5Al8.4.