| Related citation: | Jingfeng Zhao,Xiangxu Xie,Feng Chen,Kailong Di,Xuefeng Zhou.Cooling Rate Dependence of Structural Order and Energy Landscape in Zr55Cu35Al10 Glass[J].Journal of Harbin Institute Of Technology(New Series),2022,29(5):78-85.DOI:10.11916/j.issn.1055-9113.2020076. |
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| Author Name | Affiliation | | Jingfeng Zhao | School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, Jiangsu,China | | Xiangxu Xie | School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, Jiangsu,China | | Feng Chen | School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, Jiangsu,China | | Kailong Di | School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, Jiangsu,China | | Xuefeng Zhou | School of Materials Engineering, Changshu Institute of Technology, Changshu 215500, Jiangsu,China |
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| Abstract: |
| Classical molecular dynamics simulation has been widely used to study the rapid cooling process of preparing amorphous alloys. However, the simulated cooling rate is several orders of magnitude higher than the experimental cooling rate. In this paper, Zr55Cu35Al10 alloy was taken as an example. It is found that adding isothermal annealing at a temperature slightly lower than Tg and prolonging isothermal annealing time could effectively reduce the cooling rate. The glassy sample prepared in this way demonstrates significant energetic stability and well-developed short-range and medium-range order. |
| Key words: classical molecular dynamics simulation cooling rate isothermal annealing energetic stability short-range order medium-range order |
| DOI：10.11916/j.issn.1055-9113.2020076 |
| Clc Number:TG1 |
| Fund: |
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| Descriptions in Chinese: |
| 论冷却速率对Zr55Cu35Al10合金结构和能量的影响 赵静锋，谢祥续，陈锋，狄凯龙，周雪峰* （常熟理工学院 材料工程学院，江苏 常熟 215500） 中文说明：经典分子动力学模拟被广泛应用于非晶合金的快速冷却过程研究。然而，模拟冷却速率比实验冷却速率高几个数量级。本文以Zr55Cu35Al10合金为例，发现在略低于玻璃转变温度的温度下加入等温退火，延长等温退火时间可有效降低冷却速率。用这种方法获得的非晶样品具有显著的能量稳定性和更有序的中短程序结构。 关键词：经典分子动力学模拟,冷却速率,等温退火,能量稳定性,短程有序,中程有序 |
