Effect of Neodymium Modification on the Corrosion Behavior of AZ63 Magnesium Alloy

doi:10.1007/s11665-022-07081-z

	Effect of Neodymium Modification on the Corrosion Behavior of AZ63 Magnesium Alloy
	Li, Jiarun1 ; Chen, Shiqiang2 ; Wang, Ning 3; Wang, Lei 1
	2022-06-29
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	12
通讯作者	Li, Jiarun(lijiarun@yeah.net)
摘要	The microstructure and electrochemical behaviors of Mg-6 wt.%Al-3 wt.%Zn (AZ63) and Mg-6 wt.%Al-3 wt.%Zn + (0.25, 0.5, 0.75 and 1.0 wt.%) Nd were investigated via immersion and electrochemical tests, materials characterization including x-ray diffraction (XRD) and scanning electron microscope (SEM) associated with energy spectrum (EDS). The results indicate that Nd alloying prefers to combine with Al and gives rise to the formation of Al2Nd phase, which distributes discretely in alpha-Mg grains. The corrosion rates of these magnesium alloys can be ranked as: AZN1.0 (10.43 mm center dot y(-1)) > AZ63 (4.47 mm center dot y(-1)) > AZN0.25 (4.18 mm center dot y(-1)) > AZN0.5 (3.61 mm center dot y(-1)) > AZN0.75 (2.58 mm center dot y(-1)), manifesting that the appropriate Nd alloying (less than 0.75 wt.%) can decrease the corrosion rate of AZ63, but over alloying (1.0 wt.%) would results in the rapid degradation. The decrease in corrosion rate by Nd alloying (no more than 0.75 wt.%) can be attributed to the anodic barrier effect of increasing intermetallic phases and the compact corrosion product layer generated, but over Nd alloying (1.0 wt.%) vary the predominant intermetallic phase in AZ63 from Mg17Al12 to Al2Nd, which gives rise to a fierce galvanic corrosion and porous product layer.
关键词	anode materials corrosion electrochemical behaviors magnesium alloy neodymium alloying
DOI	10.1007/s11665-022-07081-z
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of ShanDong[ZR2021MD002]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000818625700006
出版者	SPRINGER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179608
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Li, Jiarun
作者单位	1.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Shandong, Peoples R China 2.Shandong Univ, Inst Marine Sci & Technol, Qingdao 266237, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiarun,Chen, Shiqiang,Wang, Ning,et al. Effect of Neodymium Modification on the Corrosion Behavior of AZ63 Magnesium Alloy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2022:12.
APA	Li, Jiarun,Chen, Shiqiang,Wang, Ning,&Wang, Lei.(2022).Effect of Neodymium Modification on the Corrosion Behavior of AZ63 Magnesium Alloy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,12.
MLA	Li, Jiarun,et al."Effect of Neodymium Modification on the Corrosion Behavior of AZ63 Magnesium Alloy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2022):12.