Patent ID: 7771289

Claim:
A golf club head, comprising: a substrate including at least one of a fibrous material, a foam, a ceramic, a metal, a metal alloy, a polymer, and a composite; and a structural coating coupled to the substrate and including an electrodeposited fine-grained binary Ni—Fe alloy, the electrodeposited fine-grained metallic material having an average grain size that is in the range of 2 nm to 5000 nm, a yield strength that is in the range of 200 MPa to 2,750 MPa, and a hardness that is in the range of 100 Vickers to 2,000 Vickers, the structural coating having a thickness in the range of 30 μm to 5,000 μm, such that the electrodeposited fine-grained metallic material represents at least 10 percent of a total weight of the golf club head.