Environment effects on the reciprocating wear of Inconel 690 steam generator tubes

摘要: Abstract Reciprocating sliding wear experiments have been performed in various environmental conditions, such as temperatures, air and water environments to examine the properties of Inconel 690 steam generator (S/G) tubes. For present study, test rig was designed reciprocating rolling high temperature. The consists pressure vessel, electric heater, reciprocating, loading units. Tests were at constant applied load distance investigate effects temperature environment. Then, worn surfaces observed using scanning electron microscope mechanism. In environment, loss increased with between 25 150 °C. Beyond 150 °C, decreased increasing However, all ranges. variation due formation oxide layer. It assumed that layer formed by debris sintering, cold welding or oxidation mechanisms these varied tests temperatures environments, which confirmed identification surface observation.