Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment

doi:10.1166/jnn.2019.16456

IMR OpenIR

	Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment
	Ding, Yanfang 1,3; Jia, Ruiling 1; Zhang, Wei 2; Zhang, Huixia 3; Hou, Jian 3
通讯作者	Jia, Ruiling()
	2019
发表期刊	JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN	1533-4880
卷号	19 期号:1 页码:188-193
摘要	AZ91 alloy with 1.0 wt.% (La, Ce) mischmetal (MM) addition was solution treated at 593 K for 4 h, 653 K for 2 h and 693 K for 8 h (T4), which was subsequently aged at 493 K for 5 h, 8 h and 11 h, respectively. Solid solution and aging treatment mainly led to the change of number of beta-Mg17Al12 phases and the size of mischmetal (MM) intermetallics. The relative potential difference is an index for local corrosion of alloys because the corrosion is driven by micro-galvanic coupling of the microstructure. In the present work, the relative Volta potential difference between the dominated intermetallic phase and Mg-matrix phase in the AZ91 alloy with (La, Ce) MM addition after heat treatment was measured by scanning Kelvin probe force microscopy (SKPFM). Then correlative changes of relative Volta potentials of intermetallic phases with solid-solution-treatment and subsequently aging treatment (T6) were inferred. The relative Volta potential difference of mischmetal intermetallic phases increased with the solid solution treatment. With the increase of aging time, the relative Volta potential difference of mischmetal intermetallic phases decreased. The relative Volta potential difference of intermetallic phases containing rare earth was ranked as: T6-11 h < T6-8 h < T6-5 h < as-received < T4.
关键词	Relative Volta Potential Difference Scanning Probe Microscopy Nanometer Phase Heat Treatment
资助者	Natural Science Foundation of Inner Mongolia ; Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute
DOI	10.1166/jnn.2019.16456
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Inner Mongolia[2016MS0538] ; Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute[KF160408]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000447641700025
出版者	AMER SCIENTIFIC PUBLISHERS
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.imr.ac.cn/handle/321006/129641
专题	中国科学院金属研究所
通讯作者	Jia, Ruiling
作者单位	1.Inner Mongolia Univ Technol, Sch Mat Sci & Engn, Hohhot 010051, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China 3.LSMRI, State Key Lab Marine Corros & Protect, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Ding, Yanfang,Jia, Ruiling,Zhang, Wei,et al. Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2019,19(1):188-193.
APA	Ding, Yanfang,Jia, Ruiling,Zhang, Wei,Zhang, Huixia,&Hou, Jian.(2019).Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,19(1),188-193.
MLA	Ding, Yanfang,et al."Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 19.1(2019):188-193.