Microstructural evolution of the NiCrAlY/CrON duplex coating system and its influence on mechanical properties

IMR OpenIR

	Microstructural evolution of the NiCrAlY/CrON duplex coating system and its influence on mechanical properties
	W. Z. Li; Q. M. Wang; Z. B. Bao; Y. Yao; J. Gong; C. Sun; X. Jiang
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	498 期号:1-2 页码:487-494
摘要	The microstructural evolution of the NiCrAlY/CrON system during vacuum heat treatment and thermal exposure was investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The elastic modulus and residual stress of the coating system were measured by nanoindentation and photo-stimulated luminescence spectrum (PSLS) methods, respectively. It was shown that the series reaction of beta -> gamma' -> gamma took place in the NiCrAlY coating, which contributed to a decrease in the Young's modulus. The replacement of Cr(2)O(3) by Al(2)O(3) during thermal exposure resulted in an increase of the Young's modulus of the barrier layer. A change in the residual stress in the barrier layer was due to a combination of thermal and growth stresses. (c) 2008 Elsevier B.V. All rights reserved.
部门归属	[li, w. z.; wang, q. m.; bao, z. b.; yao, y.; gong, j.; sun, c.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [li, w. z.] guangxi univ, sch resources & environm, nanning 530004, peoples r china. [li, w. z.; jiang, x.] univ siegen, inst mat engn, d-57076 siegen, germany.;sun, c (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 72 wenhua rd, shenyang 110016, peoples r china;csun@imr.ac.cn
关键词	Microstructural Evolution Elastic Modulus Residual Stress Nicraly Coating Diffusion Barrier Layer Thermal Barrier Coatings High-temperature Oxidation Diffusion Barrier Elastic-modulus Composition Dependence Residual-stresses Young Modulus Gas-turbines Bond Coat Indentation
URL	查看原文
WOS记录号	WOS:000261420500068
引用统计	被引频次：23[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/321006/32898
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Z. Li,Q. M. Wang,Z. B. Bao,et al. Microstructural evolution of the NiCrAlY/CrON duplex coating system and its influence on mechanical properties[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,498(1-2):487-494.
APA	W. Z. Li.,Q. M. Wang.,Z. B. Bao.,Y. Yao.,J. Gong.,...&X. Jiang.(2008).Microstructural evolution of the NiCrAlY/CrON duplex coating system and its influence on mechanical properties.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,498(1-2),487-494.
MLA	W. Z. Li,et al."Microstructural evolution of the NiCrAlY/CrON duplex coating system and its influence on mechanical properties".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 498.1-2(2008):487-494.