(Cu50Zr50)92Al8非晶合金在过冷液相区表现出优异的超塑性,并且成功的进行了超塑扩散连接(SPF/DB).根据DSC曲线确定了非晶合金的过冷液相区范围为68℃,并且根据非晶合金在过冷液相区的压缩真实应力-应变曲线,选取了超塑扩散连接实验的连接压力为200MPa,连接温度为470～490℃.XRD图谱显示经过超塑扩散连接后的非晶合金发生了部分晶化,显微硬度提高.将经过超塑扩散连接的样品置于万能拉升机上进行三点弯曲实验至发生断裂,通过对断口形貌的观察分析和界面处的力学分析考察了连接质量.在保持连接压力200 MPa不变的情况下,非晶合金获得最好连接效果的工艺参数是:连接温度480℃,连接时间3h.
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