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中文摘要：
用铜模铸造法制备了Gd_（36）La_（20）Al_（24）Co_（20）块体非晶合金,并在其过冷液相区内不同温度及不同压力下进行了加压退火处理.通过XRD和DSC研究了加压退火处理对该非晶合金晶化行为及热稳定性的影响规律.结果表明,加压退火抑制了Gd_（36）La_（20）Al_（24）Co_（20）非晶合金的晶化过程,其晶化激活能E随退火压力的增加而增大,分析了相关的机理.
英文摘要：
Gd_（36）La_（20）Al_（24）Co_（20） bulk metallic glass（BMG） was prepared by copper-mold casting. The crystallization behavior and thermal stability of Gd_（36）La_（20）Al_（24）Co_（20） during annealing under two temperatures in supercooled liquid region and the pressures ranging from ambient pressure to 725 MPa were investigated by XRD and DSC.High pressure was found to retard the crystallization of Gd_（36）La_（20）Al_（24）Co_（20） BMGs.The apparent activation energy of the crystallization,E,determined by Kissinger equation increases with increasing applied pressure.The relative mechanisms were analyzed appropriately.
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