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SUMMARY Electrolytic codeposition is a promising alternative low-cost process for fabricating MCrAlY coatings.  In this process, CrAlY particles are codeposited with the (Ni,Co) to form an (Ni,Co)-CrAlY composite coating, which is subsequently heat treated at elevated temperatures to be transformed to the MCrAlY coating containing phases of β-NiAl, γ-(Ni,Co), etc.  Two types of CrAlY-based particles (made by ball milling and gas atomization) were employed.  The effects of several key processing parameters, such as current density, particle loading, and particle size/shape density, on the CrAlY particle incorporation in the electrodeposited (Ni,Co)-CrAlY coatings were studied.  For the ball-milled CrAlY powder, an increase in current density led to a decrease in particle incorporation, whereas for the gas-atomized CrAlY powder the current density showed a negligible influence on particle incorporation.  The relationship of particle incorporation and particle loading followed t

United statesOak ridgeZuid hollandUniversity of tennesseeYing zhangJames lindsayMalvern mastersizerPrentice hallE jennings taylorUniversity of albertaUniversity of tennessee knoxvilleClare omolesey ltdLehigh universityDepartment of mechanical engineeringCo niSandvik materials technology