Characterization of the Corrosion Product Films Formed on the As-Cast and Friction-Stir Processed Ni-Al Bronze in a 3.5 wt% NaCl Solution

IMR OpenIR

	Characterization of the Corrosion Product Films Formed on the As-Cast and Friction-Stir Processed Ni-Al Bronze in a 3.5 wt% NaCl Solution
	Song, Q. N.; Zheng, Y. G.; Ni, D. R.; Ma, Z. Y.; ygzheng@imr.ac.cn
	2015
发表期刊	CORROSION
ISSN	0010-9312
卷号	71 期号:5 页码:606-614
摘要	An as-cast Ni-Al bronze (NAB) was subjected to friction-stir processing (FSP). The friction-stir processed NAB (FSPed NAB) exhibited better corrosion resistance in a 3.5 wt% sodium chloride solution. The corrosion product films formed on the as-cast and FSPed NAB were characterized by scanning electron microscopy (SEM), x-ray diffraction (XRD), and electron probe micro-analysis (EPMA). Uncorroded phases were retained in the films. The interfaces between these phases and their surrounding corrosion products allowed the chloride ions in and reduced the film protectiveness. For the as-cast NAB, the un-corroded phases were large in size or continuous in structure, resulting in continuous interfaces. Therefore, the film on the as-cast NAB exhibited relatively inferior protectiveness. The films on the as-cast and FSPed NAB were similar in composition with mainly copper chloride hydroxide Cu-2(OH)(3)Cl in the outer layer, and Al2O3 and Cu2O with the incorporation of Fe and Ni in the inner layer. Stability of the films in the flowing condition was also studied and a film damage mechanism was raised. In the flowing condition, the film on the as-cast NAB was damaged by crack formation and expansion, while the film on the FSPed NAB was damaged by thinning.
部门归属	[song, q. n. ; zheng, y. g.] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china ; [ni, d. r. ; ma, z. y.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
关键词	Corrosion Product Film Epma Flowing Condition Friction-stir Processing Ni-al Bronze Sem Xrd
资助者	National Natural Science Foundation of China [51131008]
收录类别	sci
语种	英语
WOS记录号	WOS:000355329200005
引用统计	被引频次：50[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/321006/74663
专题	中国科学院金属研究所
通讯作者	ygzheng@imr.ac.cn
推荐引用方式 GB/T 7714	Song, Q. N.,Zheng, Y. G.,Ni, D. R.,et al. Characterization of the Corrosion Product Films Formed on the As-Cast and Friction-Stir Processed Ni-Al Bronze in a 3.5 wt% NaCl Solution[J]. CORROSION,2015,71(5):606-614.
APA	Song, Q. N.,Zheng, Y. G.,Ni, D. R.,Ma, Z. Y.,&ygzheng@imr.ac.cn.(2015).Characterization of the Corrosion Product Films Formed on the As-Cast and Friction-Stir Processed Ni-Al Bronze in a 3.5 wt% NaCl Solution.CORROSION,71(5),606-614.
MLA	Song, Q. N.,et al."Characterization of the Corrosion Product Films Formed on the As-Cast and Friction-Stir Processed Ni-Al Bronze in a 3.5 wt% NaCl Solution".CORROSION 71.5(2015):606-614.