Formation of chromium carbide coatings on HT250 steel by thermal diffusion processes in fluoride molten salt bath

doi:10.1016/j.vacuum.2018.06.015

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Formation of chromium carbide coatings on HT250 steel by thermal diffusion processes in fluoride molten salt bath
	Su, XZ ; Zhao, SF ; Hou, J ; Yu, GJ ; Chen, YJ ; Sun, H ; Zhang, P ; Xie, LD
刊名	VACUUM
	2018
卷号	155 期号:-页码:219-223
关键词	REACTIVE DEPOSITION MECHANICAL-PROPERTIES GROWTH-BEHAVIOR FLINAK SALT MICROSTRUCTURE KINETICS ELECTRODEPOSITION TEMPERATURE SUBSTRATE FRICTION
ISSN号	0042-207X
DOI	10.1016/j.vacuum.2018.06.015
文献子类	期刊论文
英文摘要	LiF-NaF-KF (46.5-11.5-42 mol %, FLiNaK) molten salt was used in the thermal diffusion (TD) process to form chromium carbide coatings on gray cast iron HT250 at 900 degrees C for 8 h. The structure and chemical composition of the coating were observed by scanning electron microscopy coupled with energy dispersive X-ray microanalysis (SEM-EDX) and X-ray diffraction (XRD). Both the nanoindentation hardness and Vickers hardness were measured. A 3-5 mu m thick chromium carbides layer and approximately 10 pm thick transition layer were formed on the surface of gray cast iron HT250. The chromium carbides layer was composed of Cr23C6 and Cr7C3. The hardness of gray cast iron HT250 was increased 6 times after treatment. The tribological behavior was also improved. These results demonstrate that fluoride salts can be used as base salts to form excellent chromium carbides coatings via the TD process.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/30951]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Su, XZ,Zhao, SF,Hou, J,et al. Formation of chromium carbide coatings on HT250 steel by thermal diffusion processes in fluoride molten salt bath[J]. VACUUM,2018,155(-):219-223.
APA	Su, XZ.,Zhao, SF.,Hou, J.,Yu, GJ.,Chen, YJ.,...&Xie, LD.(2018).Formation of chromium carbide coatings on HT250 steel by thermal diffusion processes in fluoride molten salt bath.VACUUM,155(-),219-223.
MLA	Su, XZ,et al."Formation of chromium carbide coatings on HT250 steel by thermal diffusion processes in fluoride molten salt bath".VACUUM 155.-(2018):219-223.