Cavitation Erosion Corrosion Behaviour of Manganese-nickel-aluminum Bronze in Comparison with Manganese-brass

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	Cavitation Erosion Corrosion Behaviour of Manganese-nickel-aluminum Bronze in Comparison with Manganese-brass
	H. Yu; Y. G. Zheng; Z. M. Yao
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:6 页码:758-766
摘要	The cavitation erosion corrosion behaviour of ZQMn12-8-3-2 manganese-nickel-aluminum bronze and ZHMn55-3-1 manganese-brass was investigated by mass loss, electrochemical measurements (polarization curves and electrochemical impedance spectroscopy) and the cavitation damaged surfaces were observed by scanning electron microscopy (SEM). The results showed that ZQMn12-8-3-2 had better cavitation erosion resistance than ZHMn55-3-1. After the cavitation erosion for 6 h, the cumulative mass loss of ZQMn12-8-3-2 was about 1/3 that of ZHMn55-3-1. The corrosion current density of ZQMn12-8-3-2 was less than that of ZHMn55-3-1 under both static and cavitaiton condition. The free-corrosion potentials of ZQMn12-8-3-2 and ZHMn55-3-1 were all shifted in positive direction under cavitation condition compared to static condition. In the total cumulative mass loss under cavitation condition, the pure erosion played a key role for the two tested materials (74% for ZHMn55-3-1 and 60% for ZQMn12-8-3-2), and the total synergism between corrosion and erosion of ZQMn12-8-3-2 (39%) was larger than that of ZHMn55-3-1 (23%). The high cavitation erosion resistance of ZQMn12-8-3-2 was mainly attributed to its lower stacking fault energy (SFE), the higher microhardness and work-hardening ability as well as the favorable propagation of cavitation. cracks for ZQMn12-8-3-2, i.e., parallel to the surface rather than perpendicular to the surface for ZHMn55-3-1.
部门归属	[yu, hong; zheng, yugui; yao, zhiming] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;zheng, yg (reprint author), chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china;ygzheng@imr.ac.cn
关键词	Cavitation Erosion Marine Propeller Manganese-nickel-aluminum Bronze Manganese-brass Synergism Work-hardening Ability Stacking Fault Energy Stacking-fault Energy Alloy Seawater Steels Cast
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WOS记录号	WOS:000272784100009
引用统计	被引频次：35[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/321006/32511
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Yu,Y. G. Zheng,Z. M. Yao. Cavitation Erosion Corrosion Behaviour of Manganese-nickel-aluminum Bronze in Comparison with Manganese-brass[J]. Journal of Materials Science & Technology,2009,25(6):758-766.
APA	H. Yu,Y. G. Zheng,&Z. M. Yao.(2009).Cavitation Erosion Corrosion Behaviour of Manganese-nickel-aluminum Bronze in Comparison with Manganese-brass.Journal of Materials Science & Technology,25(6),758-766.
MLA	H. Yu,et al."Cavitation Erosion Corrosion Behaviour of Manganese-nickel-aluminum Bronze in Comparison with Manganese-brass".Journal of Materials Science & Technology 25.6(2009):758-766.