Análise do revestimento de 410NiMo depositado pelo processo de aspersão térmica a arco elétrico contra o desgaste por riscamento

Abstract

Welding or thermal spray coating can be used to protect surfaces subject to wear, thus avoiding a reduction in the service life, replacement or premature wear of equipment and systems. Martensitic stainless steels are generally used in applications that require good mechanical properties and wear resistance, as with hydroelectric turbine rotors. The welding process in stainless steels is somewhat more critical, so the thermal spray coating process is more suitable for producing coatings in this type of material. This is due to the lower tenacity loss of the martensitic structures. It was deposited by the electric arc thermal spray coating, the 410NiMo martensitic stainless steel in the form of a solid wire on the substrate of the martensitic stainless steel CA6NM. The Vickers microhardness tests and scratch abrasive wear were done on the specimen in order to evaluate the coating layer.