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Author Huang, Tsai Shang
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2010
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword buildup ♦ cermet ♦ CoCrAlY ♦ hearth roll ♦ HVOF ♦ Operating Procedures, Materials Treatment ♦ Tribology, Corrosion and Coatings ♦ Surfaces and Interfaces, Thin Films ♦ Analytical Chemistry ♦ Characterization and Evaluation of Materials ♦ Materials Science
Abstract Thermal spray coatings have been widely used on hearth rolls in a continuous annealing line to improve steel sheet quality and to prolong the roll service life. One of the common defects formed on a working hearth roll is the oxide buildup. HVOF-sprayed CoCrAlY-CrB$_{2}$-Y$_{2}$O$_{3}$ coating was used in this study to duplicate buildups by reacting with Fe and Mn oxides. The reaction was performed in a furnace at 900 °C with inert gases flowing through. After reacting for 8 days, large Mn-rich buildups were formed on the coating while the buildups without Mn were very small. Mn was shown to enhance the formation of buildups. Buildups from a hearth roll were also examined and compared with the laboratory ones.
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 2010-07-15
Publisher Place Boston
e-ISSN 15441016
Journal Journal of Thermal Spray Technology
Volume Number 20
Issue Number 3
Page Count 9
Starting Page 447
Ending Page 455


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Source: SpringerLink