904L insimbi engagqwali plateiwuhlobo lwensimbi engagqwali ye-austenitic enokuqukethwe kwekhabhoni ephansi kakhulu kanye nengxubevange ephezulu eklanyelwe izindawo ezinezimo ezimbi ezigqwalayo.Inokumelana nokugqwala okungcono kune316Lfuthi317L, kuyilapho kucatshangelwa inani, ukusebenza, kanye nokusebenza kahle kwezindleko.ngaphezulu.Ngenxa yokwengezwa kwethusi elingu-1.5%, inokumelana nokugqwala okuhle kakhulu ekunciphiseni ama-asidi afana ne-sulfuric acid ne-phosphoric acid.Futhi inokumelana nokugqwala okuhle kakhulu ngokumelene ne-stress corrosion pitting kanye nokugqwala kwe-crevice okubangelwa ama-ion e-chloride, futhi inokumelana kahle nokugqwala kwe-intergranular.Ku-asidi ye-sulfuric ehlanzekile ebangeni lokuhlushwa lika-0-98%, izinga lokushisa lensiza le-904L lensimbi lingafinyelela ku-40 degrees Celsius.Ku-asidi ye-phosphoric ehlanzekile ebangeni lokuhlushwa lika-0-85%, ukumelana nokugqwala kwayo kuhle kakhulu.Ezimbonini ze-phosphoric acid ezikhiqizwa izinqubo ezimanzi, ukungcola kunomthelela oqinile ekuphikiseni ukugqwala.Phakathi kwazo zonke izinhlobo ze-phosphoric acid, i-904L super austenitic insimbi engagqwali inokumelana nokugqwala okungcono kunensimbi evamile engagqwali.Kuma-acid oxidizing aqinile, insimbi engagqwali engu-904L inokumelana nokugqwala okuphansi kunezinhlobo zensimbi ezixubene kakhulu.ngaphakathi kwalolu hlu lokuhlushwa.Ukumelana nokugqwala kwensimbi engu-904L kungcono kunokwensimbi evamile engagqwali.Insimbi engagqwali engu-904L inokumelana okuphezulu nokugqwala kwe-pitting.Ukumelana kwayo nokugqwala kwe-crevice ezixazululweni ze-chloride.Amandla nawo mahle kakhulu.Okuqukethwe kwe-nickel okuphezulu kwe904L ipuleti lensimbikunciphisa izinga lokugqwala emigodini nasemithungo.Ngenxa yokuqukethwe kwayo okuphezulu kwe-nickel, i-904L inokumelana okuphezulu nokucindezeleka kokubola kokuqhekeka kuzixazululo ze-nitride, izixazululo ze-hydroxide ezigxilile kanye nezindawo ezicebile nge-hydrogen sulfide.
Isikhathi sokuthumela: Nov-20-2023