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Work‐roll surface degradation due to spalling of oxide layer
Author(s) -
Zhang Wenge,
Krempaszky Christian,
Werner Ewald
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200701045
Subject(s) - spall , oxide , materials science , layer (electronics) , stress (linguistics) , composite material , surface stress , work (physics) , surface layer , surface (topology) , structural engineering , metallurgy , forensic engineering , engineering , mechanical engineering , surface energy , geometry , mathematics , linguistics , philosophy
Surface damage of work‐rolls in hot strip rolling mills is often associated with the local removal of the oxide layer developing in service. A simple thermomechanical stress analysis in combination with an estimated buckling stress shows that the size of oxide free spots on the roll surface is roughly the same as the lateral distance between the cracks in the observed crack pattern. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)