Oxidation and cracking behaviors of triple-layered Cr2AlC coating

doi:10.1016/j.surfcoat.2021.127554

CORC > 金属研究所 > 中国科学院金属研究所

	Oxidation and cracking behaviors of triple-layered Cr2AlC coating
	Li, Jingjing 1; Xiang, Huimin 2; Xu, Jingjun 3; Zheng, Lili 4; Qian, Yuhai 5
刊名	SURFACE & COATINGS TECHNOLOGY
	2021-09-25
卷号	422 页码:8
关键词	Cr2AlC coating Oxidation Diffusion barrier Cracking Internal stress evolution
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2021.127554
通讯作者	Li, Jingjing(jjli@alum.imr.ac.cn)
英文摘要	Cr2AlC coating has potential applications as high temperature protective coating. However, inevitable inter-diffusion at coating/substrate interface promotes Al depletion and deteriorates its oxidation resistance. In the present work, the oxidation behavior of a triple-layered Cr2AlC coating, with (Cr,Al)(2)O-3 inner layer, amorphous intermediate layer and crystalline Cr2AlC outer layer, was investigated at 900 and 1000 degrees C in air. The effect of the (Cr,Al)(2)O(3 )inner layer as diffusion barrier was evaluated during the oxidation process. It is showed that the triple-layered Cr2AlC coating could effectively improve the oxidation resistance of the M38G alloy substrate, due to the Cr2AlC outer layer. The (Cr,Al)(2)O-3 inner layer could prohibit internal nitridation and retard interdiffusion at the coating/substrate interface, improving oxidation resistance of the triple-layered Cr2AlC coating. Furthermore, cracking of the triple-layered Cr2AlC coating was found after oxidation at 900 and 1000 degrees C, due to the thermal stress and internal stress introduced by intermediate amorphous layer crystallization during oxidation.
资助项目	National Natural Science Foundation of China[52071318] ; Shenyang Ligong University High Level Talents Research Support Plan[1010147000901]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000685607200054
资助机构	National Natural Science Foundation of China ; Shenyang Ligong University High Level Talents Research Support Plan
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159238]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Jingjing
作者单位	1.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China 2.Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Qingdao Univ, Coll Mech & Elect Engn, Natl Engn Res Ctr Intelligent Elect Vehicle Power, Qingdao 266071, Peoples R China 5.Aluminum Valley Ind Technol Inst, Zouping 256200, Peoples R China
推荐引用方式 GB/T 7714	Li, Jingjing,Xiang, Huimin,Xu, Jingjun,et al. Oxidation and cracking behaviors of triple-layered Cr2AlC coating[J]. SURFACE & COATINGS TECHNOLOGY,2021,422:8.
APA	Li, Jingjing,Xiang, Huimin,Xu, Jingjun,Zheng, Lili,&Qian, Yuhai.(2021).Oxidation and cracking behaviors of triple-layered Cr2AlC coating.SURFACE & COATINGS TECHNOLOGY,422,8.
MLA	Li, Jingjing,et al."Oxidation and cracking behaviors of triple-layered Cr2AlC coating".SURFACE & COATINGS TECHNOLOGY 422(2021):8.