Oxygen impurity improving corrosion resistance of a Zr-based bulk metallic glass in 3.5 wt% NaCl solution

doi:10.1016/j.corsci.2021.109867

IMR OpenIR

	Oxygen impurity improving corrosion resistance of a Zr-based bulk metallic glass in 3.5 wt% NaCl solution
	Jiang, J.1,2; Wang, Z. B.3; Pang, S. J.4; Zheng, Y. G.3; Li, Y.1
通讯作者	Wang, Z. B.(zbwang12s@imr.ac.cn) ; Li, Y.(liyi@imr.ac.cn)
	2021-11-01
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	192 页码:12
摘要	The effect of oxygen impurity on corrosion behavior of as-cast Zr61Ti2Cu25Al12 bulk metallic glasses (BMGs) is clarified using electrochemical measurements, microstructure characterization and surface analyses. We find unexpectedly that oxygen impurity (<= 1200 ppm) improves pitting corrosion resistance when a fully amorphous structure is attained. The oxygen-induced annihilation of free volume enhances passive film protectiveness and hence accounts for the improved corrosion property. In contrast, adding more oxygen impurity (1800 ppm) deteriorates pitting corrosion resistance by assisting the formation of highly-reactive crystalline phases. The finding herein provides an avenue for designing new low-cost Zr-based BMGs with superior properties by oxygen microalloying.
关键词	Zr-based bulk metallic glass Oxygen impurity Pitting corrosion Passive film Free volume Crystallization
资助者	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
DOI	10.1016/j.corsci.2021.109867
收录类别	SCI
语种	英语
资助项目	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000707327400002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：28[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/321006/166633
专题	中国科学院金属研究所
通讯作者	Wang, Z. B.; Li, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 4.Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Mat & Performance, Minist Educ, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Jiang, J.,Wang, Z. B.,Pang, S. J.,et al. Oxygen impurity improving corrosion resistance of a Zr-based bulk metallic glass in 3.5 wt% NaCl solution[J]. CORROSION SCIENCE,2021,192:12.
APA	Jiang, J.,Wang, Z. B.,Pang, S. J.,Zheng, Y. G.,&Li, Y..(2021).Oxygen impurity improving corrosion resistance of a Zr-based bulk metallic glass in 3.5 wt% NaCl solution.CORROSION SCIENCE,192,12.
MLA	Jiang, J.,et al."Oxygen impurity improving corrosion resistance of a Zr-based bulk metallic glass in 3.5 wt% NaCl solution".CORROSION SCIENCE 192(2021):12.