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Functionally graded tube of aluminum alloy matrix composite reinforced by ceramic particles
Author(s): 
Pages: 290-292
Year: Issue:  3
Journal: MATERIALS SCIENCE AND TECHNOLOGY

Keyword:  离心铸造功能梯度复合管复合材料;
Abstract: 对强化颗粒进行了预处理,通过控制搅拌条件及感应炉供电功率等参数,使颗粒直接加入到基体铝合金中,并在浆体中呈现不同的分布.再通过调整其它的工艺参数,利用水平式离心铸造机制备了三种具有不同强化部位和不同颗粒分布的功能梯度复合管:外层强化、内层强化以及内外层同时强化.结果表明:功能梯度复合管的显微硬度与颗粒分布具有良好的对应关系,而且显微组织也呈现梯度变化;强化部位的多样化可为功能梯度厚壁复合管的应用开辟新的领域.
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