高压下时效时间对AZ91D镁合金组织及耐蚀性的影响

刘秋香; 陆德平; 谢仕芳; 刘克明; 杨艳玲; 余玖明

doi:10.15980/j.tzzz.2015.08.002

试验研究 | 浏览量 : 0 下载量: 145 CSCD: 1

导出
分享
收藏
专辑

高压下时效时间对AZ91D镁合金组织及耐蚀性的影响
Effect of High Pressure Aging Time on Microstructures and Corrosion Resistance of AZ91D Magnesium Alloys
2015年35卷第8期页码：789-792
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.08.002

扫描看全文

[1]刘秋香,陆德平,谢仕芳,刘克明,杨艳玲,余玖明.高压下时效时间对AZ91D镁合金组织及耐蚀性的影响[J].特种铸造及有色合金,2015,35(08):789-792.

Liu Qiuxiang, Lu Deping, Xie Shifang, et al. Effect of High Pressure Aging Time on Microstructures and Corrosion Resistance of AZ91D Magnesium Alloys[J]. Special Casting & Nonferrous Alloys, 2015,35(8):789-792.
[1]刘秋香,陆德平,谢仕芳,刘克明,杨艳玲,余玖明.高压下时效时间对AZ91D镁合金组织及耐蚀性的影响[J].特种铸造及有色合金,2015,35(08):789-792. DOI： 10.15980/j.tzzz.2015.08.002.

Liu Qiuxiang, Lu Deping, Xie Shifang, et al. Effect of High Pressure Aging Time on Microstructures and Corrosion Resistance of AZ91D Magnesium Alloys[J]. Special Casting & Nonferrous Alloys, 2015,35(8):789-792. DOI： 10.15980/j.tzzz.2015.08.002.

摘要

以AZ91D镁合金为研究对象

借助X射线衍射仪、金相显微镜、扫描电镜及电化学工作站

研究了在1GPa压力下

时效时间对AZ91D镁合金组织及耐腐蚀性能的影响。结果表明

随着时效时间延长

AZ91D镁合金孪晶数量先增加后减小

在孪晶交截区及孪晶晶界处出现了大量的动态再结晶晶粒。时效时间为60min时

AZ91D镁合金晶粒组织细小均匀

此时其耐腐蚀性能最好。

Abstract

Effects of aging time on microstructures and corrosion resistance of AZ91 D magnesium alloys were investigated under 1GPa through XRD（X-ray diffraction）

OM（optical microscopy）

SEM（scanning electron microscopy）and polarization curves.The results show that

with aging time increase

the number of twin crystal is increased firstly and then decreased.Moreover

a mounts of dynamic recrystallization grains can be observed in twin boundaries and twin-intersection zone.After aging treatment for60 min

the grain size in AZ91 D magnesium alloys exhibits fine and uniform with the satisfied corrosion resistance.