Effects of sodium tungstate on characteristics of microarc oxidation coatings formed on magnesium alloy in silicate-KOH electrolyte

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	Effects of sodium tungstate on characteristics of microarc oxidation coatings formed on magnesium alloy in silicate-KOH electrolyte
	Xue QJ(薛群基); Liang J(梁军); Hu LT(胡丽天)
刊名	Transactions of Nonferrous Metals Society of China
	2007
卷号	17 页码:244-249
关键词	magnesium alloy microarc oxidation Na2W04 oxide coating wear resistance
ISSN号	1003-6326
通讯作者	薛群基
中文摘要	Oxide coatings on AM60B magnesium alloy were prepared using the microarc oxidation(MA0) technique in silicate-KOH electrolyte with addition of 0-6.0 g/L Na2W04. The MA0 processes in base electrolyte with different concentrations of Na2W04 were studied. The microstructure, compositions and mechanical tribological characteristics of the oxide coatings were also investigated by SEM, XRD, XPS, microhardness analysis and ball-on-disc friction testing, respectively. It is found that the addition of Na2W04 into the base electrolyte has direct effect on the Characteristics of voltage-time curves and breakdown voltage in MA0 process. The number of micropores at top of the coating surface is increased by the addition of Na2W04. The fraction of forsterite Mg2Si04 in the oxide coating increases with increasing concentration of Na2WO4 in base electrolytes. Furthermore, the microhardness and wear resistance of oxide coatings are enhanced as well.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	Projects (50432020, 50575218) supported by the National Natural Sicence Foundation of China
语种	英语
WOS记录号	WOS:000246509900005
公开日期	2013-11-01
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4009]
专题	兰州化学物理研究所_固体润滑国家重点实验室兰州化学物理研究所_先进润滑与防护材料研究发展中心
通讯作者	Xue QJ(薛群基)
推荐引用方式 GB/T 7714	Xue QJ,Liang J,Hu LT. Effects of sodium tungstate on characteristics of microarc oxidation coatings formed on magnesium alloy in silicate-KOH electrolyte[J]. Transactions of Nonferrous Metals Society of China,2007,17:244-249.
APA	薛群基,梁军,&胡丽天.(2007).Effects of sodium tungstate on characteristics of microarc oxidation coatings formed on magnesium alloy in silicate-KOH electrolyte.Transactions of Nonferrous Metals Society of China,17,244-249.
MLA	薛群基,et al."Effects of sodium tungstate on characteristics of microarc oxidation coatings formed on magnesium alloy in silicate-KOH electrolyte".Transactions of Nonferrous Metals Society of China 17(2007):244-249.