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Preparation, microstructure and tribological behavior of laser cladding NiAl intermetallic compound coatings
Department先进润滑与防护材料研究发展中心
Yu YJ(俞友军)1,2; Zhou JS(周健松)1; Chen JM(陈建敏)1; Zhou HD(周惠娣)1; Guo C(郭纯)1,2; Wang LQ(王凌倩)1,2; Yang LB(杨连斌)3; Chen JM(陈建敏)
The second department固体润滑国家重点实验室
2012
Source PublicationWear
ISSN0043-1648
Volume274Pages:298-305
AbstractNickel aluminide (NiAl) intermetallic compound coatings were in situ synthesized from pre-placed mixed powders of Ni and Al by laser cladding. The phase composition and microstructure of the NiAl coatings were studied by means of X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The effects of laser cladding parameters on the microstructure and friction and wear behavior of the NiAl coatings were investigated. It has been found that laser power density had a crucial influence on the microstructure and friction and wear behavior of NiAl coatings. Namely, the NiAl coatings synthesized under a lower power density have more dense and fine microstructure, and lower friction coefficient and wear rate. Besides, the friction and wear behavior of the laser cladding NiAl coatings is highly dependent on applied normal load and sliding speed; and the resulting coatings sliding against Si3N4 in a ball-on-disc contact mode is more suitable for tribological application at a moderate normal load of 3–7 N and sliding speed of 0.16–0.21 m/s.
KeywordNial Coating Intermetallics Laser Processing Wear Testing
Subject Area材料科学与物理化学
DOI10.1016/j.wear.2011.09.011
Funding Organizationthe National Natural Science Foundation of China (NSFC, Nos. 50705094;51045004);Innovative Group Fund from NSFC (No. 50421502);Ministry of Science and Technology of China (“973” Plan, No. 2007CB607601)
Indexed BySCI
If1.262
Language英语
Funding Project磨损和表面工程组
compositor第一作者单位
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Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/3514
Collection固体润滑国家重点实验室(LSL)
中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心
Corresponding AuthorChen JM(陈建敏)
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.NW Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China
Recommended Citation
GB/T 7714
Yu YJ,Zhou JS,Chen JM,et al. Preparation, microstructure and tribological behavior of laser cladding NiAl intermetallic compound coatings[J]. Wear,2012,274:298-305.
APA Yu YJ.,Zhou JS.,Chen JM.,Zhou HD.,Guo C.,...&陈建敏.(2012).Preparation, microstructure and tribological behavior of laser cladding NiAl intermetallic compound coatings.Wear,274,298-305.
MLA Yu YJ,et al."Preparation, microstructure and tribological behavior of laser cladding NiAl intermetallic compound coatings".Wear 274(2012):298-305.
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