Formation of an Intermetallic Layer during Arc Facing of Aluminum Alloys onto a Steel Substrate

Resumo

Aluminum alloys, the composition of which is close to the matrix alloy of a composite antifriction materials, are deposited onto a steel substrate with a 10-μm-thick zinc coating. An aluminum coating on a steel substrate is formed by manual argon-arc facing with a nonconsumable electrode, arc facing using the cold metal transfer technology, and the technology that combined these methods with remelting of the first layer. The influence of the rate of energy input in facing and the alloying elements in a filler material (silicon is used as an example) on the kinetics of formation and growth of an intermetallic layer at the interface during the deposition of an aluminum layer onto a steel substrate is studied.