METHOD OF PRODUCING WEAR RESISTANT HEATPROOF COATS Russian patent published in 2011 - IPC B23K9/04 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to welding, and may be used in producing wear resistant heatproof coats in part from carbon and alloy steels. Proposed method comprises electric-arc building-up welding in atmosphere of protective gases using filler wire made from aluminium or aluminium alloys Building-up welding is carried in conditions that allow producing coat from aluminium solid solution in iron with non-equilibrium structure, and, thereafter, thermal treatment is performed to produce coat based on intermetallic phase of Fe₃Al with aluminium content of 20-25 wt %.

EFFECT: improved operating properties of built-up layers.

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