摘要
以LY12为基体、Al2O3颗粒为增强相,运用半固态加工技术,制备了Al2O3颗粒增强铝基复合材料,研究了不同体积分数的Al2O3增强相对Al2O3/Al复合材料组织变化的影响。结果表明:Al2O3颗粒对半固态复合材料的流变性提高很大;Al2O3颗粒抑制半固态复合材料晶粒的长大;Al2O3颗粒含量为1vol%时,半固态复合材料呈弥散分布;Al2O3颗粒含量为5vol%时,晶粒尺寸稳定,晶界上的颗粒明显增多且呈网状结构。
Al2O3 particle reinforced aluminum matrix composite was investigated by semi-solid forming technology, using LY12 as matrix, Al2O3 particle as reinforcement phase. The effects of the volume fraction of Al2O3 particles on the microstructure of the composite were studied. The results show that Al2O3 particle increases the rheology of the composite and inhibites the growth of grain, the dispersive distribution of 1vol% Al2O3 particle in the composite was obtained. When Al2O3 particle is 5%, the grain size changes little, the number of Al2O3 particles along grain boundary has evident increase and presents network-like distribution.
出处
《热加工工艺》
CSCD
北大核心
2011年第6期66-68,共3页
Hot Working Technology
基金
河南省教育厅自然科学研究计划项目(2009B430015)
郑州市科技攻关计划项目资助(0910SGYG232602)
关键词
半固态
复合材料
AL2O3颗粒
微观组织
semi-solid
aluminum matrix composite
Al2O3 particle
microstructure
