(1. 西安建筑科技大学 冶金工程学院，西安710055；
2. 金堆城钼业股份有限公司，西安 710077；3. 西部金属材料股份有限公司，西安 710065)
摘 要: 采用轧制方法制备Cu/Mo/Cu复合材料，利用金相显微镜、扫描电镜和电子拉伸机等研究Cu/Mo/Cu复合材料的界面结构、断裂特点和工艺参数对结合强度的影响。结果表明：轧制前经(750 ℃，8 min)热处理，道次变形量为55%，复合材料的界面结合紧密，最大剪切强度为77 MPa；钼层金属显微组织呈扁平纤维状，组织较为均匀，铜层金属的晶粒呈等轴状，由界面至表面晶粒逐渐增大，且分布很不均匀；复合机制为典型的裂口结合和机械啮合。
关键字: Cu/Mo/Cu复合材料；轧制；复合界面；结合特性
（1. College of Metallurgy Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China;
2. Jinduicheng Molybdenum Co., Ltd., Xi’an 710077, China;
3. Western Metal Materials Co., Ltd., Xi’an 710065, China）
Abstract:The Cu/Mo/Cu cladding metal materials were made by hot rolling. The interface structure, fracture characteristic and the effect of rolling process parameters on bond strength were studied by optical microscope, scanning electron microscope and electron-tensile tester. The results show that the bonding interface of composite materials is tight when deformation rate is 55% for a pass with heat-treatment at 750 ℃ for 8 min, the maximum value of shearing strength is 77 MPa. The micro-structure of Mo layer is compressed fibrous and uniform distribution. The micro-structure of Cu layer is isometric crystal. The grain size is increased from the interface to the surface, and unevenly distributed. The mechanism of bonding is typically split bonding and mechanical interlocking.
Key words: Cu/Mo/Cu cladding metal material; rolling; cladding interface; bonding property
