【摘 要】
：
High strength Al-Zn-Mg alloys with laminated structure were investigated, focusing on the diffusion-annealing and artificial aging conditions.Aluminium alloy sheets with five-layered structure, in whi
【机 构】
：
Materials Research Laboratory, Kobe Steel, Ltd., Japan
【出 处】
：
15th International Conference on Aluminium Alloys(ICAA15)(第十
论文部分内容阅读
High strength Al-Zn-Mg alloys with laminated structure were investigated, focusing on the diffusion-annealing and artificial aging conditions.Aluminium alloy sheets with five-layered structure, in which A1-Mg and A1-Zn-Cu alloy layers are laminated alternately, were annealed at 743 K for 24～96 ks after hot rolling and subsequent cold rolling.Further artificial aging at 393～453 K for 0.6～180 ks was performed after natural aging for 1.2 Ms.The microstructure distributions in sheet thickness direction after aging were characterized by small angle X-ray scattering (SAXS) technique using BL40XU beam line in Spring-8 and the hardness distributions were measured by micro Vickers hardness test.
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