摘要
采用正交试验方法,以纯铝为研究对象,晶粒尺寸为评价指标,研究了氧化铜粒度、镁含量、搅拌温度及氧化铜含量对原位合成镁铝尖晶石细化效果的影响。研究结果表明,影响细化效果的因素列序排列顺序从大到小依次为镁含量,氧化铜粒径,搅拌温度,氧化铜含量。最佳工艺参数为氧化铜粒度5μm,镁含量质量分数1%、搅拌温度675℃,氧化铜含量质量分数0.15%;此时,晶粒可细化至44μm,极限抗拉强度,断裂伸长率,弹性模量分别由原样的84.1 MPa,14.2%,3497 MPa提高到了101.2 MPa,18.3%和4085 MPa。
Using the orthogonal test method,taking pure aluminum as the research object and grain size as the evaluation index.The effects of copper oxide particle size,magnesium content,stirring temperature and copper oxide content on refining effect of in-situ synthesized magnesium aluminum spinel were studied.The results show that the order of the factors affecting the grain refinement from large to small is magnesium content,copper oxide particle size,stirring temperature,copper oxide content.The optimum process parameter is copper oxide particle size 5μm,magnesium mass content 1%,stirring temperature 675℃,copper oxide content 0.15%;at this point,the size of grain can be refined to 44μm,the ultimate tensile strength,elongation and modulus of elasticity were increased from 84.1 MPa,14.2%and 3497 MPa of the original sample to 101.2 MPa,18.3%and 4085 MPa,respectively.
作者
陈攀宇
于坤良
苏佳豪
刘孟辰
刘备
张越敏
李成栋
赵梅
CHEN Panyu;YU Kunliang;SU Jiahao;LIU Mengchen;LIU Bei;ZHANG Yuemin;LI Chengdong;ZHAO Mei(College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)
出处
《青岛科技大学学报（自然科学版）》
CAS
2024年第6期65-72,共8页
Journal of Qingdao University of Science and Technology:Natural Science Edition
基金
国家自然科学基金项目(51672145)。
关键词
氧化铜
熔体直接反应法
铝基复合材料
镁铝尖晶石
copper oxide
direct melt reaction method
aluminum base composites
magnesium aluminum spinel
