本课题从 SiC 颗粒预处理入手,利用研制的新型液态机械搅拌装置,制备了 SiC 颗粒均匀分布并与基体结合紧密的铸造 SiC_p/Al 复合材料。SiC 颗粒尺寸5~20μm,基体铝合金可以是铸造铝合金,也可以是形变铝合金。所制备的 SiCp/Al 复合材...本课题从 SiC 颗粒预处理入手,利用研制的新型液态机械搅拌装置,制备了 SiC 颗粒均匀分布并与基体结合紧密的铸造 SiC_p/Al 复合材料。SiC 颗粒尺寸5~20μm,基体铝合金可以是铸造铝合金,也可以是形变铝合金。所制备的 SiCp/Al 复合材料既可重熔铸造,又能进行压力加工。生产成本与基体铝合金基本相当。本课题主要解决了 SiC 颗粒的处理。展开更多
A novel process that combines squeeze casting with partial remelting to obtain AZ61 magnesium alloy with semi-solid microstructures was proposed. In this route, the squeeze casting was used to predeform the magnesium ...A novel process that combines squeeze casting with partial remelting to obtain AZ61 magnesium alloy with semi-solid microstructures was proposed. In this route, the squeeze casting was used to predeform the magnesium alloy billets to obtain small dendritic structures. During subsequent partial remelting, small dendritic structures transform into globular grains surrounded by liquid films. The results show that the squeeze casting AZ61 alloy after partial remelting produces more ideal, finer semi-solid microstructure compared with as-cast AZ61 alloy treated by the same isothermal holding conditions. Moreover, the mechanical properties of the thixoformed AZ61 alloy prepared by squeeze casting plus partial remelting are better than those of the thixoformed alloy prepared by conventional casting plus partial remelting.展开更多
智利的gt2P(great things to people)设计和建筑工作室,用火山岩设计了一套名为“remolten”的系列凳子。gt2P工作室在智利活火山附近发现了一种黑色多孔的很轻的石头,叫作“basaltic andesite”,然后对其材料属性进行了研究,将...智利的gt2P(great things to people)设计和建筑工作室,用火山岩设计了一套名为“remolten”的系列凳子。gt2P工作室在智利活火山附近发现了一种黑色多孔的很轻的石头,叫作“basaltic andesite”,然后对其材料属性进行了研究,将其研磨至颗粒状,再重熔铸造呈成了可以使用的物品。展开更多
文摘本课题从 SiC 颗粒预处理入手,利用研制的新型液态机械搅拌装置,制备了 SiC 颗粒均匀分布并与基体结合紧密的铸造 SiC_p/Al 复合材料。SiC 颗粒尺寸5~20μm,基体铝合金可以是铸造铝合金,也可以是形变铝合金。所制备的 SiCp/Al 复合材料既可重熔铸造,又能进行压力加工。生产成本与基体铝合金基本相当。本课题主要解决了 SiC 颗粒的处理。
基金Project(51405466)supported by the National Natural Science Foundation of ChinaProject(Y32Z010F10)supported by the Western Light Program of the Chinese Academy of Sciences+1 种基金Project(cstc2014jcyj A50009)supported by Chongqing Research of Application Foundation and Advanced Technology,ChinaProject(cstc2014jcyj A50037)supported by Chongqing Research of Application Foundation and Advanced Technology,China
文摘A novel process that combines squeeze casting with partial remelting to obtain AZ61 magnesium alloy with semi-solid microstructures was proposed. In this route, the squeeze casting was used to predeform the magnesium alloy billets to obtain small dendritic structures. During subsequent partial remelting, small dendritic structures transform into globular grains surrounded by liquid films. The results show that the squeeze casting AZ61 alloy after partial remelting produces more ideal, finer semi-solid microstructure compared with as-cast AZ61 alloy treated by the same isothermal holding conditions. Moreover, the mechanical properties of the thixoformed AZ61 alloy prepared by squeeze casting plus partial remelting are better than those of the thixoformed alloy prepared by conventional casting plus partial remelting.
文摘智利的gt2P(great things to people)设计和建筑工作室,用火山岩设计了一套名为“remolten”的系列凳子。gt2P工作室在智利活火山附近发现了一种黑色多孔的很轻的石头,叫作“basaltic andesite”,然后对其材料属性进行了研究,将其研磨至颗粒状,再重熔铸造呈成了可以使用的物品。