Abstract
A 0.13% Csteel weld obtained by the submerged arc welding process has been rolled at different temperatures up to 1100°C and reductions up to 40% (in steps of 10%) using a 2-high rolling mill. After rolling the mechanical properties of the weld, such as tensile strength, yield strength, fracture elongation, percentage reduction in area of cross-section, true fracture strength, impact strength, and hardness, have been measured and are reported. The fractured specimen surfaces have been studied using a scanning electron miscroscope. The results of the experiments show that at a rolling temperature of 1100°C after a reduction of about 30% the structure and mechanical properties of the weld seam and the base metal are very nearly equal. Even the fractographs show similar types of ductile fracture.
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