Physical metallurgy, materials and process selection, product failure analysis, materials processing (including casting, welding, thermal treatments, material removal, and thermomechanical processing), and hydrogen in metals. Areas of research interest include: (i) Control, characterization, and modeling of microstructures evolved during solidification of castings and weldments, and during heat treatment and thermomechanical processing; (ii) structure-property relationships; and (iii) hydrogen in metals.