IMR OpenIR
Role of the LPSO structure in the improvement of corrosion resistance of Mg-Gd-Zn-Zr alloys
Liu, Jing; Yang, Lixin; Zhang, Chunyan; Zhang, Bo; Zhang, Tao; Li, Yang; Wu, Kaiming; Wang, Fuhui
2019-04-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume782Pages:648-658
AbstractThe role of long period stacking ordered (LPSO) structure in the corrosion behavior of Mg-Gd-Zn-Zr alloys was investigated by means of potentiodynamic polarization experiments, hydrogen evolution tests, and microstructure characterization. The corrosion rate of the Mg-Gd-Zn-Zr alloys is mainly determined by the acceleration effect of the second phases in the micro-galvanic corrosion. After T4 heat-treatment, the beta-(Mg,Zn)(3)Gd eutectic phase in the as-cast Mg-Gd-Zn-Zr alloys transforms into an X phase with a 14-HLPSO structure. According to the results of scanning Kelvin probe force microscopy (SKPFM), the potential difference between LPSO phase and the alpha-Mg matrix is 243 mV, whereas, it is 290 mV between the eutectic phase and matrix in the as-cast alloys. The low relative potential and volume fraction of the LPSO phase reduce the acceleration degree of micro-galvanic corrosion. As a result, the corrosion resistance of Mg-Gd-Zn-Zr alloys improves significantly by the LPSO structure. (C) 2018 Elsevier B.V. All rights reserved.
KeywordMg-Gd-Zn-Zr alloys LPSO structure Corrosion behavior SKPFM
Indexed BySCI
Language英语
WOS IDWOS:000458608600072
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81169
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu, Jing,Yang, Lixin,Zhang, Chunyan,et al. Role of the LPSO structure in the improvement of corrosion resistance of Mg-Gd-Zn-Zr alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,782:648-658.
APA Liu, Jing.,Yang, Lixin.,Zhang, Chunyan.,Zhang, Bo.,Zhang, Tao.,...&Wang, Fuhui.(2019).Role of the LPSO structure in the improvement of corrosion resistance of Mg-Gd-Zn-Zr alloys.JOURNAL OF ALLOYS AND COMPOUNDS,782,648-658.
MLA Liu, Jing,et al."Role of the LPSO structure in the improvement of corrosion resistance of Mg-Gd-Zn-Zr alloys".JOURNAL OF ALLOYS AND COMPOUNDS 782(2019):648-658.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Jing]'s Articles
[Yang, Lixin]'s Articles
[Zhang, Chunyan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Jing]'s Articles
[Yang, Lixin]'s Articles
[Zhang, Chunyan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Jing]'s Articles
[Yang, Lixin]'s Articles
[Zhang, Chunyan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.