Effect of Direct Aging on Heat-Affected Zone and Tensile Properties of Electrospark-Deposited Alloy 718

The degradation of high-temperature components in the aerospace industry becomes a greater concern with the use of higher operating temperatures and increased operating cycles. Although the repair of defects can extend component lifespans, welding often results in a heat-affected zone (HAZ) or fusion zone with reduced mechanical properties. Due to the low energy input of electrospark deposition (ESD), repaired components should be less …