郑丽鸽,贺俊光,文九巴,徐大召

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

将Mg-1Zn-0.3Zr-2Gd-0.3Sr合金在510℃的条件下固溶10h,随后进行220℃,保温2、4、6、8、10和12h的时效处理,研究时效时间对Mg-1Zn-0.3Zr-2Gd-0.3Sr合金组织、腐蚀性能及力学性能的影响。结果表明:时效时间为2～4h时,Mg-1Zn-0.3Zr-2Gd-0.3Sr合金析出细小的纳米相;时效时间在6～12h范围时,Mg-1Zn-0.3Zr-2Gd-0.3Sr合金的析出相逐渐长大,其数量随着时效时间的延长而增多;时效时间为4h时,镁合金平均腐蚀速率最小约为0.41mm/a,其抗拉强度、伸长率和布氏硬度值分别约为183.6MPa、15.8%和51.4HBW。

关键词(KeyWords)： 时效时间;组织;腐蚀性能;力学性能

Abstract:

Keywords:

基金项目(Foundation): 河南省自然科学基金项目(162300410213);; 河南省教育厅科技攻关项目(14A430001)

作者(Author): 郑丽鸽,贺俊光,文九巴,徐大召

DOI: 10.13289/j.issn.1009-6264.2019-0185

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