Effect of liquid structure on the crystallization and GFA of Cu40Zr45Al7Ag8 BMGs

Li Liang; Liu Lanjun; Cui Xiao; Wang Zhizhi; Yang Dongdong; Lü Xue; Zu Fangqiu

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Effect of liquid structure on the crystallization and GFA of Cu₄₀Zr₄₅Al₇Ag₈ BMGs
Vol. 31, Issue 6, Pages: 568-571(2011)
Published： 2011 ，
DOI：

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[1]李亮,刘兰俊,崔晓,王知鸷,杨东东,吕雪,祖方遒.熔体结构状态对Cu_(40)Zr_(45)Al_7Ag_8大块非晶合金GFA及其晶化的影响[J].特种铸造及有色合金,2011,31(06):568-571.

Li Liang, Liu Lanjun, Cui Xiao, et al. Effect of liquid structure on the crystallization and GFA of Cu₄₀Zr₄₅Al₇Ag₈ BMGs. [J]. Special Casting & Nonferrous Alloys 31(6):568-571(2011)
[1]李亮,刘兰俊,崔晓,王知鸷,杨东东,吕雪,祖方遒.熔体结构状态对Cu_(40)Zr_(45)Al_7Ag_8大块非晶合金GFA及其晶化的影响[J].特种铸造及有色合金,2011,31(06):568-571. DOI：

Li Liang, Liu Lanjun, Cui Xiao, et al. Effect of liquid structure on the crystallization and GFA of Cu₄₀Zr₄₅Al₇Ag₈ BMGs. [J]. Special Casting & Nonferrous Alloys 31(6):568-571(2011) DOI：

摘要

经930℃和1030℃过热处理后

采用水淬法制备了直径为5mm的Cu40Zr45Al7Ag8大块非晶合金。利用差示扫描量热仪（DSC）对其晶化行为进行了研究。并通过X射线衍射分析了Cu40Zr45Al7Ag8大块非晶合金在不同温度退火不同时间后的析出相。结果表明

熔体过热处理提高了熔体的玻璃形成能力

且使合金的抗晶化能力/热稳定性增强。

Abstract

Cu40Zr45Al7Ag8 bulk metallic glasses were prepared by water quenching under different overheating temperatures（930℃

1030℃）. The crystallization behavior was studied by differential scanning calorimetry （DSC）. The precipitated phases in Cu40Zr45Al7Ag8 bulk metallic glasses at different annealing temperatures with different time were analyzed by X-ray diffraction. The results show that melt overheating treatment can enhance glass-forming ability and resistance for crystallization and thermodynamic stability.