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Improvement of surface corrosion resistance for magnesium alloy by combining thermal spray and cast-infiltration
Alternative TitleImprovement 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
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume20Issue:6Pages:992-996
AbstractThe 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.
Other AbstractThe 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.
Keywordarc spraying cast-infiltration magnesium alloy corrosion resistance
Indexed ByCSCD
Language英语
CSCD IDCSCD:3920415
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/157275
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
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.
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