Evaluation of three kinds of MCrAlY coatings produced by electrospark deposition

IMR OpenIR

	Evaluation of three kinds of MCrAlY coatings produced by electrospark deposition
	Xie, Yu-jiang; Wang, De; Wang, Ming-sheng; Ye, Wei; Wang, D (reprint author), Jiangxi Acad Sci, Inst Appl Phys, Nanchang 330029, Peoples R China.
	2016-06-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	26 期号:6 页码:1647-1654
摘要	Three kinds of MCrAlY coatings with different aluminum contents (5%, 8%, 12%) were prepared by electrospark deposition (ESD), their microstructure and oxidation behavior were studied by SEM and XRD. The results showed that the phase composition of the coatings changed from single gamma-Ni to gamma-Ni+beta-NiAl hypoeutectic to gamma-Ni+beta-NiAl hypereutectic with increasing aluminum content, and their solidification morphologies changed from cluster of cellular structure to cellular dendrites to coarse dendrites with secondary arms. When exposed at 1000 degrees C, the coatings with higher Al content had a stronger tendency to form theta-Al2O3 in the initial several hours. After 100 h of oxidation, a dense and adherent alpha-Al2O3 scale formed on all of the three coatings but the thickness of alpha-Al2O3 scale and the amount of remaining theta-Al2O3 increased with increasing Al content. These results revealed different characteristics of ESD MCrAlY coatings which could provide scientific guidance for industrial application.
部门归属	[xie, yu-jiang ; wang, ming-sheng ; ye, wei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china ; [xie, yu-jiang ; wang, de] jiangxi acad sci, inst appl phys, nanchang 330029, peoples r china
关键词	Mcraly Electrospark Deposition Microstructure Oxidation Behavior
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [50901081]
收录类别	sci
语种	英语
WOS记录号	WOS:000379548800021
引用统计	被引频次：15[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/321006/75840
专题	中国科学院金属研究所
通讯作者	Wang, D (reprint author), Jiangxi Acad Sci, Inst Appl Phys, Nanchang 330029, Peoples R China.
推荐引用方式 GB/T 7714	Xie, Yu-jiang,Wang, De,Wang, Ming-sheng,et al. Evaluation of three kinds of MCrAlY coatings produced by electrospark deposition[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2016,26(6):1647-1654.
APA	Xie, Yu-jiang,Wang, De,Wang, Ming-sheng,Ye, Wei,&Wang, D .(2016).Evaluation of three kinds of MCrAlY coatings produced by electrospark deposition.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,26(6),1647-1654.
MLA	Xie, Yu-jiang,et al."Evaluation of three kinds of MCrAlY coatings produced by electrospark deposition".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 26.6(2016):1647-1654.