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Effects of Temperature Drop on Ultralow Cycle Fatigue of G20Mn5QT Cast Steel
Publisher: ASCE
Abstract: Cast steels are inherently suitable for fabricating complex joints in steel constructions. These joints may suffer from ductile fracture under ultralow cycle fatigue (ULCF) loadings during earthquakes. This problem could ...
Characterization of Mechanical Properties of Welds of Q355D Steel by DSI Technique
Publisher: ASCE
Abstract: Temperature variation during the welding will cause different solid-state phase transformations in the welding area and result in a heat-affected zone (HAZ) between the weld metal (WM) and the base metal (BM). Depth-sensing ...
Thermal Simulation and Fracture Resistance Evaluation of Coarse-Grain Heat-Affected Zone in Welds of Q355D Steel
Publisher: ASCE
Abstract: The coarse-grain heat-affected zone (CGHAZ) is often the most fragile part of the weld region due to hard phases and coarse grains generated during the welding. Characterization of the mechanical properties and fracture ...