Wear behavior of brazed WC/NiCrBSi(Co) composite coatings
Lu, SP; Kwon, OY; Guo, Y
Corresponding AuthorLu, SP()
Source PublicationWEAR
AbstractA metallurgically bonded composite coating of a Ni-Cr-B-Si alloy reinforced with cobalt-coated tungsten carbide (WC-Co) particles was produced on a carbon steel substrate by high temperature vacuum brazing. The bond strength of the coating/substrate interface and the tensile strength of the coating itself reached 300-360 and 100-140 MPa, respectively. Effects of Co and WC-17Co contents on the wear behavior of the coating have been systematically investigated at two different wear conditions, namely the high speed rotating slurry erosive wear and the wet sand/rubber wheel abrasive wear. Results show that the higher was the Co content in the coating, the lower were the hardness and wear resistance. In the slurry erosive wear, the WC reinforcement of the composite coating plays an important role protecting the matrix from being worn-out, whereas in the abrasive wear, the wear mechanism is mainly controlled by the scratching and micro-cutting of the matrix followed by the pull out of WC particles due to the scratching action of abrasives. The wear resistance of the brazed composite coating (WC/NiCrBSi(Co)) is better than that of the flame overlaid coating. (C) 2003 Elsevier Science B.V. All rights reserved.
Keywordcomposite coating tungsten carbide nickel-base alloy vacuum brazing bond strength wear resistance
Indexed BySCI
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000183454000005
Citation statistics
Cited Times:63[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLu, SP
Affiliation1.Inha Univ, Dept Mech Engn, Inchon 402751, South Korea
2.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Lu, SP,Kwon, OY,Guo, Y. Wear behavior of brazed WC/NiCrBSi(Co) composite coatings[J]. WEAR,2003,254(5-6):421-428.
APA Lu, SP,Kwon, OY,&Guo, Y.(2003).Wear behavior of brazed WC/NiCrBSi(Co) composite coatings.WEAR,254(5-6),421-428.
MLA Lu, SP,et al."Wear behavior of brazed WC/NiCrBSi(Co) composite coatings".WEAR 254.5-6(2003):421-428.
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