Incoloy 925 yog anag lossis daus-nickel hardening-hlau-chromium superalloy, ntxiv dag zog los ntawm kev ntxiv ntawm molybdenum, tooj liab, titanium, thiab txhuas. Nws yog tsim los ntawm classic Incoloy alloy system, nrog optimized tshuaj muaj pes tsawg leeg los txhim kho corrosion kuj, txhua yam muaj zog, thiab thermal stability. Nws cov yam ntxwv tseem ceeb tau piav qhia meej raws li hauv qab no:
Zoo heev Mechanical Strength thiab Toughness nyob rau hauv nruab nrab kub
Incoloy 925 ua tiav los ntawm kev ntxiv dag zog los ntawm cov txheej txheem kev kho cua sov tshwj xeeb (kev daws teeb meem annealing + aging). Thaum aging, nplua intermetallic theem xws liNi₃(Ti,Al) (gamma prime, ′)thiab carbides precipitate uniformly nyob rau hauv lub alloy matrix. Cov precipitates pin lub dislocation txav thiab refine lub grain qauv, endowing lub alloy nrog zoo tensile zog, yield zog, thiab qaug zog tsis kam ntawm kub mus txog rau.540℃(1000℃F). Piv txwv li, tom qab cov txheej txheem kev laus, nws lub zog tawm los tuaj yeem ncav cuag ntau dua 690 MPa, uas yog siab dua li cov khoom siv sib xyaw ua ke - kev daws teeb meem muaj zog nickel alloys. Meanwhile, cov alloy tuav zoo ductility thiab cuam tshuam toughness, tsis txhob nkig tawg nyob rau hauv hnyav kev pab cuam tej yam kev mob xws li kev kub siab thiab cyclic loading.
Superior Corrosion Resistance nyob rau hauv Complex Corrosive Media
Cov nyhuv synergistic ntawm ntau yam alloying ntsiab muab Incoloy 925 zoo heev corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv chloride -muaj thiab sulfide- muaj ib puag ncig:
Resistance rau pitting thiab crevice corrosion: Chromium (19% – 23%) tsim cov ntaub ntawv tuab Cr₂O₃ passive zaj duab xis rau ntawm qhov chaw, thaum molybdenum (2.5% – 3.5%) thiab tooj liab (1.5% – 3.0%) txhim kho zaj duab xis stability thiab kho muaj peev xwm, zoo inhibiting pitting thiab crevice corrosion tshwm sim los ntawm high {{6} ideions. Qhov no ua rau nws tsim nyog rau kev pabcuam hauv dej hiav txwv, dej ntsev, thiab cov tshuaj chloride- cov kua dej ntau.
Tsis kam rau sulfide kev nyuaj siab corrosion cracking (SSCC): Cov hlau tsis tshua muaj kev cuam tshuam rau SSCC nyob rau hauv cov cheeb tsam qaub uas muaj hydrogen sulfide (H₂S), carbon dioxide (CO₂), thiab chloride ions, ua tau raws li cov kev cai ntawm NACE MR0175 / ISO 15156 cov qauv rau cov ntawv thov kev pabcuam qaub.
Resistance rau general corrosion: Nws ua tau zoo nyob rau hauv dilute acids (piv txwv li, sulfuric acid, phosphoric acid), alkaline daws, thiab organic acids, nrog deb zoo corrosion kuj zoo tib yam austenitic stainless hlau.
Zoo Weldability thiab Processability
Tsis zoo li qee qhov nag lossis daus- cov alloys tawv uas ua rau embrittlement thaum vuam, Incoloy 925 muaj qhov zoo tshaj plaws weldability. Nws tuaj yeem koom nrog siv txoj kev sib txuas xws li roj tungsten arc vuam (GTAW / TIG) thiab roj hlau arc vuam (GMAW / MIG) nrog cov khoom siv hlau sib txuam. Cov pob qij txha welded khaws cia siab zog thiab corrosion kuj tom qab post-weld aging kho. Tsis tas li ntawd, cov hlau muaj kev ua haujlwm zoo kub thiab txias formability: nws tuaj yeem raug forged, dov, thiab extruded ntawm qhov kub thiab txias, thiab tseem tuaj yeem raug rau cov txheej txheem ua haujlwm txias xws li khoov thiab stamping, nrog rau kev kho cua sov tom qab los txhim kho nws cov kev ua tau zoo.
Qhov Zoo Tshaj Plaws rau Kev Nyuaj Siab Corrosion Cracking (SCC)
Incoloy 925 nthuav tawm kev ua haujlwm siab rau SCC hauv ntau qhov chaw nruj, suav nrog cov tshuaj chloride-muaj cov tshuaj aqueous, cov roj qaub, thiab siab - dej kub. Cov yam ntxwv no yog ntaus nqi rau nws qhov ruaj khov austenitic matrix, cov ntsiab lus tsis tshua muaj carbon, thiab kev faib tawm ntawm cov theem ntxiv. Nws ua tau zoo zam qhov tsis ua haujlwm SCC uas feem ntau tshwm sim hauv cov pa stainless hlau thiab npib tsib xee alloys nyob rau hauv kev sib xyaw ua ke ntawm tensile stress thiab corrosive media, kom ntseeg tau ntev -lub sij hawm ua haujlwm kev nyab xeeb ntawm cov khoom.
Compatibility nrog High -purity Media thiab Hygienic Performance
Cov hlau tsis muaj impurity cov ntsiab lus thiab zoo corrosion kuj nyob rau hauv siab - purity ib puag ncig, ua rau nws tsim nyog rau kev siv nyob rau hauv kws tshuaj, khoom noj khoom haus, thiab nuclear industries. Nws qhov chaw tuaj yeem polished mus rau qib siab ntawm smoothness, ua tau raws li cov qauv kev tu cev nruj, thiab nws tsis tso cov khoom tsis zoo rau hauv nruab nrab, tsis txhob muaj kev sib kis ntawm cov khoom lossis cov dej ua haujlwm.
