Additively manufactured rotor blades and components

A method of forming a rotor blade using additive manufacturing, the method comprising:

• fusing a plurality of layers of a first material via additive manufacturing to form an airfoil, wherein the airfoil defines a leading edge and a tip at a distal end;
• fusing a plurality of layers of a second material via additive manufacturing to form a coupled component;
• and
• undetachably coupling the airfoil and the coupled component by forming an interlocking transition zone comprising a plurality of projections alternately extending from the airfoil and the coupled component, respectively, wherein the interlocking transition zone allows for relative motion between the airfoil and the coupled component.