Influence of welding gap on microstructure and mechanical performance of AH36 steel SAW joints
The present investigation explored how welding gap sizes (5, 8, and 11 mm) influence the microstructural evolution and mechanical performance of AH36 steel joints produced by submerged arc welding (SAW). Macroscopic and microscopic analyses showed sound weld formation without major defects. The heat-affected zone (HAZ)...