Corrosion and Cavitation Erosion Behaviors of Friction Stir Processed Ni-Al Bronze: Effect of Processing Parameters and Position in the Stirred Zone

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	Corrosion and Cavitation Erosion Behaviors of Friction Stir Processed Ni-Al Bronze: Effect of Processing Parameters and Position in the Stirred Zone
	Q. N. Song; Y. G. Zheng; D. R. Ni; Z. Y. Ma
	2014
发表期刊	Corrosion
ISSN	0010-9312
卷号	70 期号:3
摘要	As-cast Ni-Al bronze (NAB) was subjected to friction stir processing (FSP). Different processing parameters including rotating rate, traverse speed, and processing passes were selected to investigate their effect on the corrosion and cavitation erosion properties. Polarization curve and electrochemical impedance spectroscopy (EIS) were used to reveal the corrosion behavior. Cavitation erosion tests were conducted with an ultrasonic vibration device, and the eroded surfaces were observed using scanning electron microscopy (SEM). Results showed that cavitation erosion resistance was improved for all the processed NAB compared to the as-cast, and a two-pass processed NAB possessed the best corrosion resistance since it had further homogenized microstructure compared to the single-pass processed ones. Corrosion and cavitation erosion tests were also conducted on samples (Surface, Subsurface, Middle, and Bottom) obtained by machining from different positions of the stirred zone (SZ) in a constant-parameter processed NAB along the plate thickness. The Middle was more corrosion resistant since its equiaxed microstructure contributed to a homogeneous oxide film on the surface. The grains in the Bottom were the finest, so the Bottom was the most cavitation erosion resistant.
部门归属	[song, q. n. ; zheng, y. g.] chinese acad sci, state key lab corros & protect, inst met res, 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. ; zheng, yg (reprint author), chinese acad sci, state key lab corros & protect, inst met res, 62 wencui rd, shenyang 110016, peoples r china. ; ygzheng@imr.ac.cn
关键词	Cavitation Erosion Corrosion Friction Stir Processing Ni-al Bronze Nickel-aluminum Bronze Mechanical-properties Microstructural Modification Cast Alloy Propellers Resistance Texture Steel
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72573
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. N. Song,Y. G. Zheng,D. R. Ni,et al. Corrosion and Cavitation Erosion Behaviors of Friction Stir Processed Ni-Al Bronze: Effect of Processing Parameters and Position in the Stirred Zone[J]. Corrosion,2014,70(3).
APA	Q. N. Song,Y. G. Zheng,D. R. Ni,&Z. Y. Ma.(2014).Corrosion and Cavitation Erosion Behaviors of Friction Stir Processed Ni-Al Bronze: Effect of Processing Parameters and Position in the Stirred Zone.Corrosion,70(3).
MLA	Q. N. Song,et al."Corrosion and Cavitation Erosion Behaviors of Friction Stir Processed Ni-Al Bronze: Effect of Processing Parameters and Position in the Stirred Zone".Corrosion 70.3(2014).