Mg72Zn24Ca4非晶合金的相变分析

IF 0.6 Q4 METALLURGY & METALLURGICAL ENGINEERING

Archives of Foundry Engineering Pub Date : 2023-11-06 DOI:10.24425/AFE.2020.133324

J. Lelito

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引用次数: 1

摘要

本文研究了以Mg72Zn24Ca4合金为基体的金属玻璃。在旋转铜轮上采用感应熔融和进一步注射法制备了金属玻璃。利用x射线衍射仪和差示扫描量热仪(DSC)研究了非晶带的相变。根据差示扫描量热计的研究，在等温退火过程中，结晶过程释放的热量为166.18 Jg -1。采用差示扫描量热仪研究了等温退火温度对非晶合金结晶过程动力学的影响。为此，选择了两个等温退火温度。保温时间随等温退火温度从300秒增加到252秒而减小。随着等温退火温度从360秒增加到228秒，相变持续时间也随之减少。所得结果表明，等温退火温度对相变程度有显著影响。

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Phase Transformation Analysis of the Amorphous Mg72Zn24Ca4 Alloy

The paper presents research of metallic glass based on a Mg72Zn24Ca4 alloy. Metallic glass was prepared using induction melting and further injection on a spinning copper wheel. The X-ray diffractometer and differential scanning calorimeter (DSC) were used to investigate the phase transformation of the amorphous ribbon. The heat released in the crystallization process, during isothermal annealing, based on the differential scanning calorimeter investigation, was determined to be 166.18 Jg -1 . The effect of isothermal annealing temperature on the kinetics of the amorphous alloy crystallization process using differential scanning calorimeter was investigated. For this purpose, two isothermal annealing temperatures were selected. The incubation time decreases as the temperature of the isothermal annealing increases from 300 to 252 seconds. The same relationship is visible in the case of duration of the phase transformation, which also decreases as the temperature of the isothermal annealing increases from 360 to 228 seconds. The obtained results show a significant influence of isothermal annealing temperature on the degree of phase transformation.

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来源期刊

Archives of Foundry Engineering METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： Thematic scope includes scientific issues of foundry industry: Theoretical Aspects of Casting Processes, Innovative Foundry Technologies and Materials, Foundry Processes Computer Aiding, Mechanization, Automation and Robotics in Foundry, Transport Systems in Foundry, Castings Quality Management, Environmental Protection. Why subscribe and read