A method for repairing a damaged metallic component using additive manufacturing techniques, the method comprising the steps of: separating a damaged portion of the damaged metallic component from an undamaged portion of the damaged metallic component; further separating areas of the metallic component in the undamaged portion that are adjacent to the damaged portion to form protrusions and recesses in the undamaged portion of the metallic component adjacent to the damaged portion; measuring the undamaged portion to determine the dimensions of the removed damaged portion and the removed areas from the undamaged portion; fabricating a replacement portion using additive manufacturing techniques in accordance with the determined dimensions of the removed damaged portion and the removed areas from the undamaged portion, wherein the replacement portion includes a locking feature that comprises protrusions and recesses that correspond in shape with the protrusions and recesses of the damaged metallic component, and further wherein the replacement portion is fabricated using a first material at a first end thereof and a second material at a second end thereof that is opposite the first end, wherein the first end comprises the locking feature and the first material comprises a joining material that differs from a material of the metallic component, and wherein the second end comprises the material of the metallic component; and joining the replacement portion with the undamaged portion of the damaged metallic component to form a repaired metallic component, wherein joining further comprises fitting the protrusions and recesses of the locking feature with the protrusions and recesses in the undamaged portion of the damaged metallic component. separating a damaged portion of the damaged metallic component from an undamaged portion of the damaged metallic component; further separating areas of the metallic component in the undamaged portion that are adjacent to the damaged portion to form protrusions and recesses in the undamaged portion of the metallic component adjacent to the damaged portion; measuring the undamaged portion to determine the dimensions of the removed damaged portion and the removed areas from the undamaged portion; fabricating a replacement portion using additive manufacturing techniques in accordance with the determined dimensions of the removed damaged portion and the removed areas from the undamaged portion, wherein the replacement portion includes a locking feature that comprises protrusions and recesses that correspond in shape with the protrusions and recesses of the damaged metallic component, and further wherein the replacement portion is fabricated using a first material at a first end thereof and a second material at a second end thereof that is opposite the first end, wherein the first end comprises the locking feature and the first material comprises a joining material that differs from a material of the metallic component, and wherein the second end comprises the material of the metallic component; and joining the replacement portion with the undamaged portion of the damaged metallic component to form a repaired metallic component, wherein joining further comprises fitting the protrusions and recesses of the locking feature with the protrusions and recesses in the undamaged portion of the damaged metallic component.