Research on Behavior of Slab Surface Defects in Forward Slip Zone during V-H Rolling Process

Abstract:

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Behavior of the transversal crack and the longitudinal crack on slab surface during V-H rolling was simulated by the FEM. The contact pressure on crack surfaces and the crack-tip stress change rules during rolling were analyzed. Results show that the contact pressure on crack surfaces decreases and the tensile stress appears at crack tip in the zone of slippage on the delivery side, which may make the cracks propagation. For the phenomenon, the stress distribution along rolling direction and along width direction in rolling are analyzed, and the influence of forward slip on the closure and growth of the surface transversal crack and the surface longitudinal crack are discussed. Results support some significant information for researching the behavior of the slab surface defects in rolling process.

Info:

Periodical:

Materials Science Forum (Volumes 575-578)

Edited by:

Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou

Pages:

243-248

DOI:

10.4028/www.scientific.net/MSF.575-578.243

Citation:

H. L. Yu et al., "Research on Behavior of Slab Surface Defects in Forward Slip Zone during V-H Rolling Process", Materials Science Forum, Vols. 575-578, pp. 243-248, 2008

Online since:

April 2008

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Price:

$35.00

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