杨伟东,樊建锋,张金玲,张艳萍,谢中柱,许并社

• 1:新材料界面科学与工程教育部重点实验室
• 2:山西省新材料工程技术研究中心
• 3:太原理工大学材料科学与工程学院

摘要(Abstract)：

采用球磨法(ball milling,BM)制备了AZ91镁合金粉末,对制得的粉末进行冷压、烧结处理。利用光学显微镜(OM)和扫描电子显微镜(SEM)观察并研究了不同烧结温度下合金的微观组织,利用显微硬度计测试了铸态以及600℃下烧结合金的硬度。结果表明:球磨后粉末由数百微米的不规则颗粒转变为中位径为9.98μm,且形貌规整的粉末颗粒。随着烧结温度的提高,合金的致密度因内部物质迁移能力的增强而提高,当温度达到600℃时,致密度达到了96.3%。与铸态时相比,粉末冶金法制备的合金,其显微硬度从81.06 HV提高到了104.39 HV。

关键词(KeyWords)： 粉末冶金;AZ91镁合金;显微组织;硬度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50901048,51174143);; 教育部新世纪优秀人才支持计划;; 教育部长江学者与创新团队发展计划(IRT0972);; 山西省自然科学基金(2010021022-5)

作者(Author): 杨伟东,樊建锋,张金玲,张艳萍,谢中柱,许并社

DOI: 10.13289/j.issn.1009-6264.2013.01.035

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