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在一定初始温度下经过不同时间的熔体过热处理,利用铜模吸铸法,制备纯非晶合金Zr_(48)Cu_(36)Ag_8Al_8棒状试样,通过X射线衍射仪(XRD)、差示扫描热分析仪(DSC)、万能力学试验机和场发射扫描电子显微镜(SEM)研究过热处理对其力学性能的影响。结果表明,在一定的处理时间范围内,随着处理时间的增长,Zr_(48)Cu_(36)Ag_8Al_8非晶合金原子排列的混乱度增加,非晶合金的平均自由体积增加,Zr_(48)Cu_(36)Ag_8Al_8非晶合金的变形局域化程度降低,变形能力随之增强,非晶合金的断裂强度和塑性得到了提高。
Under certain initial temperature, melt-overheat treatment at different time was used to prepare pure amorphous alloy Zr_ (48) Cu_ (36) Ag_8Al_8 rod sample by copper die suction casting method. The XRD and differential scanning calorimetry Scanning Thermal Analysis (DSC), Universal Mechanical Tester and Field Emission Scanning Electron Microscope (SEM) were used to investigate the effect of overheating on the mechanical properties. The results show that the confusion of atomic arrangement of Zr 48 Cu 36 Ag 8 Al 8 amorphous alloy increases and the average free volume of amorphous alloy increases with the increase of treatment time, The degree of deformation localization of Cu_ (36) Ag_8Al_8 amorphous alloy decreases, the deformation ability increases, and the breaking strength and ductility of the amorphous alloy increase.