Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys II. Microstructure evolution

doi:10.1016/j.msea.2005.06.016

IMR OpenIR

	Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys II. Microstructure evolution
	Wang, QM; Li, H; Guo, MH; Ke, PL; Gong, J; Sun, C; Wen, LS
通讯作者	Wang, QM(qmwang@imr.ac.cn)
	2005-10-15
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	406 期号:1-2 页码:350-357
摘要	NiCoCrAlYSiB coatings were obtained using an arc ion plating technique on a directionally solidified Ni-base superalloy. Thermal shock resistance of the bare and coated superalloys were investigated by cycling between high temperature (900, 1000 and 1050 degrees C) and room temperature (forced water quenching). The microstructure evolution in coatings and the underneath substrates was studied. The results showed that phase transformation from gamma' to gamma occurred at the surface of the coated and bare specimens due to the consumption of Al and Ti by oxidation. A directional coarsening of the gamma' precipitates (gamma' rafting) just beneath the gamma'-impoverishing zone (or interdiffusion zone) is observed. This kind of rafting is believed to come into being from the compressive stresses by temperature gradients due to high cooling rate during cooldown. The relationship between microstructure evolution and cracks formation and propagation is also discussed. (c) 2005 Elsevier B.V. All rights reserved.
关键词	thermal shock cycling arc ion plating NiCoCrAlYSiB DSM11 gamma ' rafting
DOI	10.1016/j.msea.2005.06.016
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000232565100042
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：10[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/321006/82835
专题	中国科学院金属研究所
通讯作者	Wang, QM
作者单位	Chinese Acad Sci, Met Res Inst, Div Surface Engn Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, QM,Li, H,Guo, MH,et al. Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys II. Microstructure evolution[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2005,406(1-2):350-357.
APA	Wang, QM.,Li, H.,Guo, MH.,Ke, PL.,Gong, J.,...&Wen, LS.(2005).Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys II. Microstructure evolution.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,406(1-2),350-357.
MLA	Wang, QM,et al."Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys II. Microstructure evolution".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 406.1-2(2005):350-357.