Effect of Configuration of 2.5% Nickel Steel—Mild Steel Laminated Plate on Toughness

Abstract

Laminated plates of two to sixteen layers were made of 2.5% nickel steel and mild steel by hot rolling. Their impact values were examined on the specimens notched on plate side and plate surface, and the following results were obtained.
(a) The order of the impact values of the laminated plate is; Three layers plate with mild steel surface>two layers plate> three layers plate with nickel steel surface.
(b) Laminated plate notched on plate surface has a larger impact value than one notched on plate side.
(c) Four to sixteen layers laminated plates show smaller impact values as compared with a three layers plate with mild steel surface.