Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure

doi:10.1016/j.engfailanal.2022.106697

CORC > 金属研究所 > 中国科学院金属研究所

	Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure
	Hu, Ming 1,3,4; Pan, Mengfei 4; Shen, Mingli 2; Guo, Cean 4; Tang, Yueyang 4; Yu, Hangjian 4
刊名	ENGINEERING FAILURE ANALYSIS
	2022-11-01
卷号	141 页码:12
关键词	Thermal shock behaviour Cr coating Non-planar structure Electroplating Vacuum arc ion plating
ISSN号	1350-6307
DOI	10.1016/j.engfailanal.2022.106697
通讯作者	Hu, Ming(minghu_sylu@163.com)
英文摘要	Cr coating is widely used as a protective coating on the inner and outer surface of industrial equipment. However, current researches on Cr coatings are predominantly conducted on plane specimens, and few works have considered the effect of irregular substrates on coatings. The thermal shock behaviour and failure mechanisms of two-kind Cr coatings prepared by electro-plating and vacuum arc ion plating on non-planar structure at 900 C were investigated. The microstructure and crystalline phases of the two-kind Cr coatings were analysed by scanning electron microscopy, energy dispersive spectrometry, and X-ray diffraction. The results indicate that vacuum arc ion plating Cr coating has better thermal shock resistance. There were two typical damaged regions for both Cr coatings, i.e.the concave corner of groove and the convex corner of land. By analysing the thermal shock damage behaviour of the coatings, it is concluded that fatigue stress, thermal mismatch stress, and the inherent properties of the two-kind Cr coatings are the main reasons for the difference in the overall damage degree, and the temper-ature stress concentration in the concave corner of groove is the cause for the higher degree of thermal shock damage.
资助项目	Department of Science and Technology of Liaoning Province[2021 -BS -162] ; Basic Research Project for Higher Education Institutions of the Education Department of Liaoning Province[LJKZ0273]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000848499100002
资助机构	Department of Science and Technology of Liaoning Province ; Basic Research Project for Higher Education Institutions of the Education Department of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/175028]
专题	金属研究所_中国科学院金属研究所
通讯作者	Hu, Ming
作者单位	1.Shenyang Ligong Univ, 6 Nanpingzhong Rd, Shenyang 110159, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 3.Inner Mongolia North Heavy Ind Grp Co, Baotou, Peoples R China 4.Shenyang Ligong Univ, Sch Equipment Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Hu, Ming,Pan, Mengfei,Shen, Mingli,et al. Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure[J]. ENGINEERING FAILURE ANALYSIS,2022,141:12.
APA	Hu, Ming,Pan, Mengfei,Shen, Mingli,Guo, Cean,Tang, Yueyang,&Yu, Hangjian.(2022).Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure.ENGINEERING FAILURE ANALYSIS,141,12.
MLA	Hu, Ming,et al."Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure".ENGINEERING FAILURE ANALYSIS 141(2022):12.