Influence of cathodic polarization on corrosion fatigue life of aluminium alloy LY12CZ

IMR OpenIR

	Influence of cathodic polarization on corrosion fatigue life of aluminium alloy LY12CZ
	Chang, H ; Han, EH ; Wang, JQ ; Ke, W
通讯作者	Chang, H(hchang@imr.ac.cn)
	2005-05-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	41 期号:5 页码:556-560
摘要	Based on S-N curve of corrosion fatigue (CF) for LY12CZ aluminum alloy, the tendency of CF lives of the uncoated and coated specimens in 3.5%NaCl solution was studied. The evolution of the cathodic current with cyclic number under cathodic polarization was measured. The morphology of fracture surface was observed and the mechanism of the effect of the cathodic polarization on the CF life of LY12CZ aluminum alloy with and without coating was analyzed. CF lives of the uncoated specimens were increased evidently as cathodic protection in certain range of potential restrained anodic corrosion. But the potential reached some value (exceeding -1400 mV), cathodic corrosion of aluminum alloy made CF lives obviously decrease. For coated specimens, in certain range of potential the cathodic protection did not appear due to coating. When the potential was over some value, CF lives of coated specimens were ligher than those of uncoated specimens because the coating prevent cathodic corrosion.
关键词	cathodic polarization corrosion fatigue life LY12CZ aluminum alloy coating of covering airplane
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000229648900020
出版者	SCIENCE PRESS
引用统计	被引频次：5[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/321006/83557
专题	中国科学院金属研究所
通讯作者	Chang, H
作者单位	1.Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Peoples R China 2.Shenyang Ligong Univ, Inst Mat, Shenyang 110168, Peoples R China
推荐引用方式 GB/T 7714	Chang, H,Han, EH,Wang, JQ,et al. Influence of cathodic polarization on corrosion fatigue life of aluminium alloy LY12CZ[J]. ACTA METALLURGICA SINICA,2005,41(5):556-560.
APA	Chang, H,Han, EH,Wang, JQ,&Ke, W.(2005).Influence of cathodic polarization on corrosion fatigue life of aluminium alloy LY12CZ.ACTA METALLURGICA SINICA,41(5),556-560.
MLA	Chang, H,et al."Influence of cathodic polarization on corrosion fatigue life of aluminium alloy LY12CZ".ACTA METALLURGICA SINICA 41.5(2005):556-560.