铜铝固相轧制复合的界面组成^①

来源期刊：中国有色金属学报1996年第1期

论文作者：顾文桂

文章页码：79 - 83

关键词：钢铝复合； 双金属； 界面； 显微组成

Key words：composite of pure aluminum； copper metals ；bimetal interface morphology； microstructure

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)[011]。

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)[011].