Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration

IMR OpenIR

	Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration
其他题名	Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration
	Zhang Zhongli; Ding Yong; Wang Xin; Yang Guoqiang; Shen Weiwei; Han Hailing
	2010
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	20 期号:6 页码:992-996
摘要	The present work focuses on a new method combining cast-infiltration with thermal spraying technology to improve the surface corrosion resistance of magnesium alloy. A zinc-based alloy layer was fabricated on the surface of AZ91D magnesium alloy. The microstructure of the layer was characterized by scanning electron microscopy equipped with an energy dispersive X-ray spectroscopy (EDS). The phase constituent of these alloys was identified by X-ray diffractometry (XRD). The analysis results reveal that a zinc-based alloy layer with a thickness of 700 mu m can form on the surface of AZ91 alloy matrix. The layer is composed of Mg7Zn3, MgZn and a small amount of alpha-Mg solid solution. The results indicate that the corrosion-resistance of the specimen with a zinc-based alloy layer is much better than that of the specimen without the layer after being immersed in 5% NaCl solution for 240 h, and the layer is more protective for the AZ91 alloy.
其他摘要	The present work focuses on a new method combining cast-infiltration with thermal spraying technology to improve the surface corrosion resistance of magnesium alloy. A zinc-based alloy layer was fabricated on the surface of AZ91D magnesium alloy. The microstructure of the layer was characterized by scanning electron microscopy equipped with an energy dispersive X-ray spectroscopy (EDS). The phase constituent of these alloys was identified by X-ray diffractometry (XRD). The analysis results reveal that a zinc-based alloy layer with a thickness of 700 μm can form on the surface of AZ91 alloy matrix. The layer is composed of Mg_7Zn_3, MgZn and a small amount of α-Mg solid solution. The results indicate that the corrosion-resistance of the specimen with a zinc-based alloy layer is much better than that of the specimen without the layer after being immersed in 5% NaCl solution for 240 h, and the layer is more protective for the AZ91 alloy.
关键词	arc spraying cast-infiltration magnesium alloy corrosion resistance
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:3920415
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/157275
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhang Zhongli,Ding Yong,Wang Xin,et al. Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2010,20(6):992-996.
APA	Zhang Zhongli,Ding Yong,Wang Xin,Yang Guoqiang,Shen Weiwei,&Han Hailing.(2010).Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,20(6),992-996.
MLA	Zhang Zhongli,et al."Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 20.6(2010):992-996.