Thermal-mechanical working of wrought non-hardenable nickel alloy

摘要

The weld zone in Hastelloy X nickel superalloy is thermal mechanically worked by cold working the weld zone to reduce its thickness by about 5-40%, and by annealing at 1120 DEG -1175 DEG C. for one hour to cause recrystallization. Low cycle fatigue properties of laser and gas tungsten arc weld zones are substantially increased.