Development of New Corrosion-Resistant Bimetals with Increased Corrosion Resistance Prepared by Electroslag Surfacing Technology

Resumo

Results are presented for research in the development of new grades of corrosion-resistant steels for a bimetal cladding layer prepared by electroslag surfacing technology. It is shown that steel of transition martensiticaustenitic class may surpass martensitic steels both with respect to reliability characteristics and wear resistance. In this case, these steels have a more economic alloying system, and correspondingly low cost compared with austenitic chromium-nickel steels. Based on thermodynamic modeling of regions for phase existence optimum steel alloying systems are determined for new grades as a bimetal cladding layer.