胡宇阳,牛立斌,高冲,安玉姣,李玉华,张腾,陈勇

• 1:西安科技大学材料科学与工程学院
• 2:江苏宜镁泰精密制造有限公司

摘要(Abstract)：

采用注射成形法制备了AZ91D合金试样，利用扫描电镜(SEM)、X射线衍射(XRD)和拉伸试验等研究固溶处理对试样的显微组织、相组成和力学性能的影响。结果表明：镁合金试样经不同温度固溶处理8 h后，其抗拉强度和伸长率先升高后降低，在390℃固溶处理8 h后达到最大值，分别为164.48 MPa和18.55%。根据显微组织观察与XRD分析结果，合金组织中存在片状分布的Mg_(17)Al_(12)相，随固溶时间的增加，Mg_(17)Al_(12)相溶入基体。经390℃固溶处理8 h后，Mg_(17)Al_(12)相溶入合金基体且晶粒无明显长大，固溶效果较佳。

关键词(KeyWords)： 半固态AZ91D镁合金;注射成形;固溶处理;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 陕西省自然科学基础研究计划资助项目(2018JQ5087)

作者(Author): 胡宇阳,牛立斌,高冲,安玉姣,李玉华,张腾,陈勇

DOI: 10.13289/j.issn.1009-6264.2022-0001

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