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Vol.20, No.7, 580 ~ 586, 1982
Title
A Study on the Bonding Characteristics of Stainless Clad Steel
노재상Jae Sang Ro, 이후철Hu Chul Lee
Abstract
Autovacuum cleaning and hot rolling processes were applied to produce stainless clad steel. The effects of manufacturing variables on the bonding shear strength were investigated. The principal factor that controls the bonding shear strength was known to be the rolling reduction ratio and good bonding strength over 30㎏f/㎟ was obtained at over 40% rolling reductions. Thickness of the nickel layer or annealing time showed little effects on the bonding strength. The effect of surface roughness was greatly reduced at over 50% rolling reductions. Rearrangement of mild steel-nickel interface was observed after annealing process but the rearrangement did not affect the bonding strength when the rolling reduction is over 50%. Porosities were observed after up to 40% rolling reductions but were barely noticed after 60% rolling reduction. Carbon diffusion was not significant right after hot rolling but occurred very rapidly during annealing process.
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