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Author Deng, C. ♦ Liu, M. ♦ Wu, C. ♦ Zhou, K. ♦ Song, J.
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences
Subject Keyword chip-resistance ♦ electrolytic hard chrome plating ♦ fracture toughness ♦ HVAF WC coatings ♦ impingement-resistance ♦ steel ball free fall ♦ Analytical Chemistry ♦ Operating Procedures, Materials Treatment ♦ Characterization and Evaluation of Materials ♦ Materials Science ♦ Tribology, Corrosion and Coatings ♦ Surfaces and Interfaces, Thin Films
Abstract High-velocity oxygen/air fuel (HVO/AF) WC-17Co and WC-10Co4Cr coatings exhibit great potential in the replacement of electrolytic hard chrome (EHC) plating, and comprehensive properties of such coatings should be superior to those of electrolytic hard chrome plating. The impingement resistance of HVAF WC-based coatings sprayed on 300M ultrahigh-strength steel was studied in this paper. As an important property index, the fracture toughness of HVAF WC-based coatings was measured using the microindentation method at loads of 9.8, 19.6, 24.5, 29.4, and 49.0 N, respectively. The cracks resulting from stress concentration in the microindentation were analyzed. The impingement resistance for two HVAF WC coatings and EHC was evaluated according to the ASTM D 3170 standard, and steel ball free-fall experiment was performed at the height of 0.61, 1.52, 1.83, 2.36, and 2.59 m, respectively. The cracks caused by both impingements were analyzed using scanning electron microscopy (SEM) and optical microscopy (OM) in comparison with the cracks in microindentation test.
ISSN 10599630
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-10-24
Publisher Place Boston
e-ISSN 15441016
Journal Journal of Thermal Spray Technology
Volume Number 16
Issue Number 5-6
Page Count 6
Starting Page 604
Ending Page 609


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Source: SpringerLink