Effect of Y content on interface reaction and wettability between a nickel-base single crystal superalloy melt and ceramic mould

doi:10.1016/j.jallcom.2019.03.037

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of Y content on interface reaction and wettability between a nickel-base single crystal superalloy melt and ceramic mould
	Zi, Yun 1,2; Meng, Jie 1; Zhang, Chaowei 1; Yang, Yanhong 1; Zhou, Yizhou 1; Ding, Yutian 3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2019-06-15
卷号	789 页码:472-484
关键词	Nickel-base single crystal superalloy melt Ceramic mould Interface reaction Wettability Y content
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2019.03.037
通讯作者	Meng, Jie(jmeng@imr.ac.cn) ; Zhou, Yizhou(yzzhou@imr.ac.cn)
英文摘要	In this paper, the effect of Y content on interface reaction and wettability between a nickel-base single crystal supperalloy melt and ceramic mould were studied by means of sessile drop tests. The microstructural characterization of the alloy-ceramic interface and the elemental compositions of reaction products were performed by scanning electron microscope (SEM) and electron probe micro-analyzer (EPMA), the phases of reaction products were identified by X-ray diffraction (XRD), and the surface analysis of reaction products was carried out by X-ray photoelectron spectroscopy (XPS). The results showed that Al and Hf in the alloy reacted with SiO2 in the ceramic mould when Y content was lower than 0.011 wt%, and the reaction products were Al2O3 and HfO2, with little change in the wetting angle. However, when Y content was higher than 0.017 wt%, Y and Al in the alloy reacted with SiO2 in the ceramic mould, and the wetting angle decreased significantly. 0.017 wt% was the critical concentration of Y content that would cause interface reactions. The reaction products of 0.017 and 0.025 wt% Y alloys were Y3Al2(AlO4)(3), the reaction products of 0.1 wt% Y alloy were Y3Al5O12 and Y4Al2O9, and the reaction products of 0.5 and 1.0 wt% Y alloys were double reaction layer composed of Y2O3 and Y3Al5O12. Si generated by the interface reactions could react with O-2 in the atmosphere to form SiOx during the cooling of the alloy-ceramic couples. (C) 2019 Published by Elsevier B.V.
资助项目	National Key R&D Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[5161188] ; National Natural Science Foundation of China[51701210]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000464542700057
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132964]
专题	金属研究所_中国科学院金属研究所
通讯作者	Meng, Jie; Zhou, Yizhou
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zi, Yun,Meng, Jie,Zhang, Chaowei,et al. Effect of Y content on interface reaction and wettability between a nickel-base single crystal superalloy melt and ceramic mould[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,789:472-484.
APA	Zi, Yun,Meng, Jie,Zhang, Chaowei,Yang, Yanhong,Zhou, Yizhou,&Ding, Yutian.(2019).Effect of Y content on interface reaction and wettability between a nickel-base single crystal superalloy melt and ceramic mould.JOURNAL OF ALLOYS AND COMPOUNDS,789,472-484.
MLA	Zi, Yun,et al."Effect of Y content on interface reaction and wettability between a nickel-base single crystal superalloy melt and ceramic mould".JOURNAL OF ALLOYS AND COMPOUNDS 789(2019):472-484.