Influence of Y2O3 Content on Microstructure and Properties of Laser Cladding 0.3C-18Cr Alloy Coating
Guo Tieming1; Pu Yabo1; Zhang Ruihua2; Li Zilin2; Li Qiang1
2019-11
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume48Issue:11Pages:3643-3650
Abstract0.3C18Cr composite coatings were prepared with different Y2O3 contents on 3Cr14 stainless steel substrate by laser cladding. The effects of different Y2O3 contents on the microstructure, phase composition and hardness of the cladding layer were studied by metallographic microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and microhardness tester. The results show that there are many pores in the cladding layer without Y2O3 addition, and the microstructure of the cladding layer consists of intragranular ferrite, bainite distributed on grain boundary and a small amount of martensite; After Y2O3 addition, the dendrite length of the cladding layer decreases and the number decreases, the dendrite tip is passivated and radially roughened, the length to diameter ratio decreases, meanwhile the pores of the cladding layer decrease, and the cladding layer is purified. The microstructure of the cladding layer is composed of lath martensite and a small amount of bainite in the grain boundary. With the increase of Y2O3, the lath martensite is slightly coarsened, the number of bainite decreases obviously, the carbon concentration of bainite carbide increases, and the type of lamellar carbides transforms from low carbon carbide to high carbon carbide. After Y2O3 addition, the microhardness of the clad layer is significantly improved; When 2wt% Y2O3 is added, the hardening effect of the cladding layer comes up to the best; the hardness is 1600 MPa higher than that of the cladding layer without Y2O3.
Keywordlaser cladding Y2O3 content microstructure properties
Indexed BySCI
Language中文
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000500083600032
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64130
Collection材料科学与工程学院
省部共建有色金属先进加工与再利用国家重点实验室
Corresponding AuthorGuo Tieming
Affiliation1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
2.Hardware Knife Cut Ind Technol Res Inst Yangjiang, Yangjiang 529533, Peoples R China
First Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Recommended Citation
GB/T 7714
Guo Tieming,Pu Yabo,Zhang Ruihua,et al. Influence of Y2O3 Content on Microstructure and Properties of Laser Cladding 0.3C-18Cr Alloy Coating[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(11):3643-3650.
APA Guo Tieming,Pu Yabo,Zhang Ruihua,Li Zilin,&Li Qiang.(2019).Influence of Y2O3 Content on Microstructure and Properties of Laser Cladding 0.3C-18Cr Alloy Coating.RARE METAL MATERIALS AND ENGINEERING,48(11),3643-3650.
MLA Guo Tieming,et al."Influence of Y2O3 Content on Microstructure and Properties of Laser Cladding 0.3C-18Cr Alloy Coating".RARE METAL MATERIALS AND ENGINEERING 48.11(2019):3643-3650.
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