采用水冷铜模吸铸法制备直径为4 mm的Fe41Co7Cr15Mo14Y2C15B6块体非晶合金,利用X射线衍射(XRD)和差式扫描量热分析仪(DSC)分别对该非晶的结构及热力学参数进行表征.利用Gleeble 3500热模拟机在过冷液相区温度620℃下,以1 ×10-2s-1的应变速率对该非晶合金进行压缩变形,研究变形量(20％、40％和75％)对该非晶合金结构和热稳定性的影响.结果表明,该条件下非晶试样能发生较好的塑性变形并未发现明显的晶化,且随着塑性变形的增加,非晶合金的热稳定性更加优异,当形变量为75％时,非晶合金的玻璃转变温度和过冷液相区宽度分别从铸态的585℃和40℃增大至658℃和59℃.变形影响非晶试样的显微硬度,宏观表现为应变量越大其显微硬度越高,当塑性形变量为20％、40％及75％时,对应最高维氏硬度分别为1258,1270和1288 HV.
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