( 1. 山东建筑工程学院 材料科学与工程系， 济南 250014;
2. 山东大学 材料液态结构及其遗传性国家教育部重点实验室，
济南 250061)
摘 要: 利用Al2（SO4）3分解， 在铝熔体中原位生成Al2O3颗粒。实验结果表明： 采用石墨坩埚、 电磁搅拌和铝熔体中加入镁的工艺流程， 可实现Al2O3颗粒和铝熔体的有效复合，进而制备出Al2O3（p）/ZA35锌基复合材料； 与基体合金ZA35相比， 复合材料的耐磨减摩性能有了明显的提高。
关键字: 复合材料; 锌合金; 电磁搅拌
Al2O3（p）/ZA35 composite with in-situ process
（ 1. Department of Materials Science and Engineering,
Shandong Institute of Architecture and Engineering,
Ji′nan 250014, China;
2. The Key Laboratory of Liquid Structure and Heredity of Materials,Ministry of Education, Shandong University,
Ji′nan 250061, China）
Abstract: By means of decomposition of Al2（SO4）3, Al2O3 particles were formed in situ in Al melt. The results show that by using graphite crucible and the method of electromagnetic stirring and adding Mg into Al melt, the combination between Al2O3 particles and Al melt is performed effectively. Basing that, Al2O3（p）/ZA35 zinc based composites was fabricated. The friction coefficient and wear resistance of Al2O3(p) /AZ35 zinc based composites were proved to be superior to those of matrix alloy ZA35 obviously.
Key words: composite; zinc alloy; electromagnetic stirring
