Gradient thermal cycling behavior of a thermal barrier coating system constituted by NiCoCrAlY bond coat and pure metastable tetragonal nano-4YSZ top coat

doi:10.1016/j.ceramint.2019.05.018

IMR OpenIR

	Gradient thermal cycling behavior of a thermal barrier coating system constituted by NiCoCrAlY bond coat and pure metastable tetragonal nano-4YSZ top coat
	Yu, C. T.1,2; Liu, H.1,2; Zhang, J.3; Ullah, A.1; Bao, Z. B.1; Jiang, C. Y.1,4; Zhu, S. L.1; Wang, F. H.1,4
通讯作者	Bao, Z. B.(zbbao@imr.ac.cn)
	2019-08-15
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	45 期号:12 页码:15281-15289
摘要	Pure metastable tetragonal (t') phase 4YSZ top coats with thickness of 100 and 200 mu m were deposited on NiCoCrAlY-coated second generation single crystal superalloy by air plasma spray (APS). The two thermal barrier coatings were evaluated under gradient thermal cycling test using gas mixture of propane and oxygen. After flame shock test, the values of Young's modulus, hardness and degree of densification all exhibited a gradient distribution across YSZ thickness. In contrast to intensive sintering at surface of 200 mu m 4YSZ coating, the TBC sample with 4YSZ layer of 100 mu m underwent poor oxidation at interface of YSZ and bond coat, forming a duplex oxide scale: (Ni,Co)(Cr,Al)(2)O-4 spinet over Al2O3, which promoted the delamination at the top-coat/bond-coat interface. The resistance against gradient thermal cycling, the phase stability of 4YSZ and the failure mechanism of the TBCs, were discussed correlating to the effects of YSZ thickness.
关键词	Thermal barrier coating Yttria stabilized zirconia Gradient thermal cycling Sintering Thermally grown oxide
资助者	National Natural Science Foundation of China ; Liaoning BaiQianWan Talents Program
DOI	10.1016/j.ceramint.2019.05.018
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671202] ; National Natural Science Foundation of China[51301184] ; Liaoning BaiQianWan Talents Program
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000474322000097
出版者	ELSEVIER SCI LTD
引用统计	被引频次：16[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/321006/134309
专题	中国科学院金属研究所
通讯作者	Bao, Z. B.
作者单位	1.Chinese Acad Sci, Inst Met Res, Wencui Rd 62, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Nonequilibrium Metall Mat Div, Shenyang Natl Lab Mat Sci, Inst Met Res, Wenhua 72, Shenyang 110016, Liaoning, Peoples R China 4.Northeastern Univ, Corros & Protect Div, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yu, C. T.,Liu, H.,Zhang, J.,et al. Gradient thermal cycling behavior of a thermal barrier coating system constituted by NiCoCrAlY bond coat and pure metastable tetragonal nano-4YSZ top coat[J]. CERAMICS INTERNATIONAL,2019,45(12):15281-15289.
APA	Yu, C. T..,Liu, H..,Zhang, J..,Ullah, A..,Bao, Z. B..,...&Wang, F. H..(2019).Gradient thermal cycling behavior of a thermal barrier coating system constituted by NiCoCrAlY bond coat and pure metastable tetragonal nano-4YSZ top coat.CERAMICS INTERNATIONAL,45(12),15281-15289.
MLA	Yu, C. T.,et al."Gradient thermal cycling behavior of a thermal barrier coating system constituted by NiCoCrAlY bond coat and pure metastable tetragonal nano-4YSZ top coat".CERAMICS INTERNATIONAL 45.12(2019):15281-15289.