An investigation on controlling the hot cracking in arc welding using vibratory treatment

Abstract

Hot cracking is a major problem in arc welding of materials like newlinehigh strength aluminum alloys super austenitic stainless steel and nickel newlinealloys As the name indicates this type of cracking occurs when the metal is still hot Methods to control hot cracking are generally based on newlinecontrolling the mechanical effects like reducing the restraint level and newlinereducing the residual stresses ii controlling the thermal effects like newlineincreasing the cooling rate and decreasing the peak temperature and iii newlinecontrolling the metallurgical effects like grain refinement and modifying the mode of solidification newline newline