904L insimbi engagqwali plateiwuhlobo lwensimbi engagqwali ye-austenitic enokuqukethwe kwekhabhoni ephansi kakhulu kanye nengxubevange ephezulu eklanyelwe izindawo ezinezimo ezimbi ezigqwalayo. Inokumelana nokugqwala okungcono kune316Lfuthi317L, ngenkathi 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. Embonini ye-phosphoric acid ekhiqizwa izinqubo ezimanzi, ukungcola kunomthelela onamandla 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 kokugqwala kokuqhekeka kuzixazululo ze-nitride, izixazululo ze-hydroxide ezigxilile kanye nezindawo ezicebile nge-hydrogen sulfide.
Isikhathi sokuthumela: Nov-20-2023