(上海钢铁研究所上海市金属功能材料重点实验室，上海200940)
摘 要: 用金相、X光、电子探针和透射电镜等方法对铜铝冷轧固相复合烧结后界面组成的形貌与结构进行了研究。确认存在γ2、δ、ζ2、η2、θ等五种中间相，尺寸分别在104、105、106、109和107mm2量级；在形态上γ2、δ、ζ2均呈多边形块状。只是前者较后者为大，且γ2内有许多平行板条，θ相近似卵形，η2为弥散顺粒、迹象表明分布具织构向，η2的织构可能是(100)[0 1]。
关键字: 钢铝复合 双金属 界面 显徽组成
（Shanghai Key Laboratory of Metallic Function Materials,Shanghai Iron and Steel Research Institute. Shanghai 200940）
Abstract:The microstructure of diffusion layer was investigated after cold-rolling bonding and sintering forthe copper-aluminum strips by metalloscope, XRD. TEM, EPM. etc. It is confirmed that there are five intermedi-ate phases, γ2,δ,ζ2,η2, and θ. The size of these intermediate phases are relatively small and respectively at the quantity grade of 104、105、106、109and107mm2. The morphology ofγ2,δ,ζ2 is like-polygonal lump, but the size ofγ2, is the largest andζ2 is the smallest among the three phases, also there are a lot of parallel laths in the γ2.The form of B phase is similar to ovoid and that ofθphase is dispersme grain. Some evidences show that the distribution of some of the intermediate phases appeared as tendency to texture. It is possible that the texture ofη2 phase is (100)[0 1].
Key words: composite of pure aluminum copper metals bimetal interface morphology microstructure
