Properties of Cr3C2-20NiCr Coatings Sprayed on Different Substrates by High Velocity Oxygen Fuel (HVOF)

doi:10.11896/cldb.19060210

	Properties of Cr3C2-20NiCr Coatings Sprayed on Different Substrates by High Velocity Oxygen Fuel (HVOF)
	Tang, Pengjun; Li, Xuqiang; Zhai, Haimin; Li, Wensheng
	2020-06-25
发表期刊	Cailiao Daobao/Materials Reports
ISSN	1005023X
卷号	34 期号:12 页码:12115-12121
摘要	The Cr3C2-20NiCr coatings were prepared on 38CrMoAl and 316L substrate by high velocity oxygen fuel (HVOF) spraying. The microstructure and phase of the coatings were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectrometer, and the bonding strength, mechanical impact resistance, thermal shock resistance, wear resistance and high temperature microhardness of the Cr3C2-20NiCr coatings were tested. The results showed that Cr3C2-20NiCr coatings deposited on both 38CrMoAl and 316L substrate by HVOF exhibited good bonding strength (more than 70 MPa), and the tensile fracture mechanisms of the coatings were mainly characterized by brittle fracture and localized ductile fracture. The mechanical impact failure forms were mainly two ways of interlayer cracking and detachment of hard particles from bond phase inside the coatings. The hardness of 316L substrate was higher than that of 38CrMoAl substrate, and the impact of powder particles on 316L substrate made them fully deformed, resulting in a relatively low porosity (3.83%). Therefore, the thermal shock resis-tance, oxidation resistance and wear resistance of the coatings deposited on 316L substrate were better than that of the coatings deposited on 38CrMoAl substrate. Abrasive wear mainly occurred in the two coatings at room temperature, while hardness of the coatings decreased at 600 and the main wear mechanisms were oxidation wear and delamination wear, accompanied by slight abrasive wear. © 2020, Materials Review Magazine. All right reserved.
关键词	Abrasion Aluminum alloys Aluminum metallography Chromium alloys Chromium metallography Ductile fracture Hard coatings Hardness HVOF thermal spraying Inorganic coatings Molybdenum metallography Nickel metallography Oxidation resistance Oxygen Scanning electron microscopy Sprayed coatings Substrates Ternary alloys Thermal shock Vanadium metallography Wear resistance Delamination wear Different substrates High velocity oxygen fuel(HVOF) High Velocity OxygenFuel (HVOF) spraying Mechanical impacts Raman spectrometers Tensile fractures Thermal shock resistance
DOI	10.11896/cldb.19060210
收录类别	EI
语种	英语
出版者	Cailiao Daobaoshe/ Materials Review
EI入藏号	20203709152565
EI主题词	Abrasive coatings
EI分类号	531.2 Metallography - 539.1 Metals Corrosion - 541.1 Aluminum - 541.2 Aluminum Alloys - 543 Chromium, Manganese, Molybdenum, Tantalum, Tungsten, Vanadium and Alloys - 804 Chemical Products Generally - 813 Coatings and Finishes - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science
来源库	Compendex
分类代码	531.2 Metallography - 539.1 Metals Corrosion - 541.1 Aluminum - 541.2 Aluminum Alloys - 543 Chromium, Manganese, Molybdenum, Tantalum, Tungsten, Vanadium and Alloys - 804 Chemical Products Generally - 813 Coatings and Finishes - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115091
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Tang, Pengjun,Li, Xuqiang,Zhai, Haimin,et al. Properties of Cr3C2-20NiCr Coatings Sprayed on Different Substrates by High Velocity Oxygen Fuel (HVOF)[J]. Cailiao Daobao/Materials Reports,2020,34(12):12115-12121.
APA	Tang, Pengjun,Li, Xuqiang,Zhai, Haimin,&Li, Wensheng.(2020).Properties of Cr3C2-20NiCr Coatings Sprayed on Different Substrates by High Velocity Oxygen Fuel (HVOF).Cailiao Daobao/Materials Reports,34(12),12115-12121.
MLA	Tang, Pengjun,et al."Properties of Cr3C2-20NiCr Coatings Sprayed on Different Substrates by High Velocity Oxygen Fuel (HVOF)".Cailiao Daobao/Materials Reports 34.12(2020):12115-12121.