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
发表期刊RARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
卷号48期号:11页码:3643-3650
摘要0.3C18Cr 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.
关键词laser cladding Y2O3 content microstructure properties
收录类别SCI ; SCIE
语种中文
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000500083600032
出版者NORTHWEST INST NONFERROUS METAL RESEARCH
EI入藏号20201008264924
EI主题词Chromium alloys
EI分类号531.2 Metallography - 543.1 Chromium and Alloys - 804.2 Inorganic Compounds - 813.1 Coating Techniques - 813.2 Coating Materials - 951 Materials Science
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/64130
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
通讯作者Guo Tieming
作者单位1.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
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式
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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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