Zr_(55)Cu_(30)Al_(12)Ni_3非晶超薄箔材的快速凝固焊接  

RAPID SOLIDIFICATION WELDING OF ULTRA-THIN Zr_(55)Cu_(50)Al_(12)Ni_3 AMORPHOUS FOILS

作　　者：翟秋亚[1] 徐锦锋[1] 张兴[1] 杨金山[1] 郭学锋[1] 

机构地区：[1]西安理工大学材料学院,西安710048

出　　处：《金属学报》2009年第3期374-377,共4页Acta Metallurgica Sinica

基　　金：陕西省自然科学基金项目2006E_134;2006E_120;陕西省教育厅科学研究计划项目06JK220资助~~

摘　　要：应用微型储能焊机实现了厚度为25—35μm的Zr55Cu30Al12Ni3非晶箔材的快速凝固连接.XRD测试表明,接头仍为非晶结构.计算的接头冷却速率高达10^6K/s,远大于形成锆基非晶合金的临界冷却速率,有效地抑制了接头区的晶化.接头尺寸微小,直径为60—90μm,未产生气孔、夹杂等焊接缺陷.接头剪切强度高达1141MPa.高的电阻率特性使非晶合金的焊接能量明显低于晶态合金.The rapid solidification welding ofZr55Cu30Al12Ni3 amorphous foils with the thickness of 25-35 μm was conducted using a micro type capacitor discharge welder. XRD analysis shows that the joint presents still amorphous structure under the rapid solidification welding conditions. The joint cooling rate calculated is high up to 106 K/s, which is much higher than that of critical cooling rate of amorphous Zr base alloy, and effectively suppresses the crystallization of joint zone. The micro joints with the size of 60-90 μm in diameter are produced and there are no welding defects such as porosity and inclusions within the joints. The joint shear strength is up to 1141 MPa. Contributing to higher electrical resistivity, the welding energy for welding metal glass foils is lower than that of crystallized metal foils remarkably.

关 键 词：锆基非晶合金 超薄箔 快速凝固焊接 接头性能 

分 类 号：TG139.8[一般工业技术—材料科学与工程]