1.Can Incoloy 925 Siv tau rau hauv kev lag luam roj thiab roj?
Yog lawm, Incoloy 925 tau siv dav thiab siv tau zoo hauv kev lag luam roj thiab roj, vim nws qhov tshwj xeeb ua ke ntawm kev tiv thaiv corrosion, siab -kub txhua yam muaj zog, thiab tsis kam rau sulfide stress cracking (SSC) thiab chloride-induced stress corrosion cracking (SCC).
Incoloy 925 yog npib tsib xee- hlau-chromium superalloy ntxiv dag zog los ntawm titanium thiab txhuas, nrog ntxiv ntawm molybdenum thiab tooj liab los txhim kho nws cov corrosion kuj. Nws cov txiaj ntsig tseem ceeb rau kev siv roj thiab roj suav nrog:
Tsis kam mus hnyav downhole ib puag ncig
Cov xwm txheej hauv cov roj thiab roj ua haujlwm feem ntau suav nrog qhov kub siab (txog 315 degree), kev kub siab, thiab kev tawm tsam hnyav xws li hydrogen sulfide (H₂S), carbon dioxide (CO₂), thiab chlorides. Incoloy 925 nthuav tawm SSC kev ua haujlwm zoo raws li NACE MR0175 / ISO 15156 tus qauv, uas yog qhov tseem ceeb rau cov khoom siv hauv kev pabcuam roj qaub. Nws kuj tseem tiv thaiv corrosion thiab pitting / crevice corrosion tshwm sim los ntawm chloride ions.
Haum rau cov khoom tseem ceeb
Cov alloy feem ntau yog siv los tsim cov cuab yeej downhole, cov cuab yeej ua tiav, valve trim, sucker rods, tubing hangers, thiab cov khoom siv lub taub hau. Cov khoom no xav tau ntev - kev cia siab rau lub sijhawm kom tsis txhob raug nqi qis thiab muaj kev nyab xeeb.
Weldability thiab fabricability
Incoloy 925 tuaj yeem welded siv cov txheej txheem txheej txheem (piv txwv li, GTAW, SMAW) nrog cov khoom siv sib xyaw ua ke, ua kom muaj kev sib koom ua ke rau cov roj thiab cov khoom siv roj. Tshaj tawm -weld kev kho cua sov tuaj yeem ua kom zoo dua nws cov tshuab thiab corrosion-cov khoom tiv taus.
2.Yog Incoloy 925 haum rau Marine Environments?
Qhov tseeb tiag, Incoloy 925 yog qhov zoo- haum rau thaj chaw hauv hiav txwv, qhov twg cov khoom raug raug dej hiav txwv, tshuaj tsuag ntsev, thiab tidal zones -tag nrho cov no yog corrosive heev vim muaj cov tshuaj chloride siab, yaj oxygen, thiab microbial kev ua si.
Nws qhov tsim nyog rau kev siv marine yog txhawb los ntawm cov yam ntxwv hauv qab no:
Zoo heev tiv taus seawater corrosion
Incoloy 925 resists uniform corrosion, pitting, thiab crevice corrosion nyob rau hauv natural thiab hluavtaws seawater. Tsis zoo li cov pa roj carbon steel lossis qee cov hlau tsis muaj steel, nws tsis raug kev txom nyem los ntawm kev xeb sai lossis kev xeb hauv cheeb tsam uas tuaj yeem ua rau ua tsis tiav ntxov ntawm marine Cheebtsam.
Tsis zoo rau marine biofouling thiab microbiologically cuam tshuam corrosion (MIC)
Cov hlau tsis muaj zog oxide txheej inhibits adhesion ntawm marine kab mob (xws li, barnacles, algae) rau qee qhov, txo qhov kev pheej hmoo ntawm MIC los ntawm sulfate-txo cov kab mob (SRB) lossis lwm yam microbes. Qhov no txuas ntxiv kev pab cuam lub neej ntawm cov khoom hauv submerged los yog txaws-zone daim ntawv thov.
Kev siv hauv marine engineering
Incoloy 925 yog siv los tsim cov khoom siv marine xws li fasteners, connectors, seawater intake screens, heat exchanger tubes, thiab offshore platform Cheebtsam. Nws kuj tseem tsim nyog rau cov khoom siv hauv dej hiav txwv hauv cov roj av thiab cov khoom siv roj av, qhov chaw uas nws tiv taus kev sib xyaw ua ke ntawm seawater corrosion thiab siab hydrostatic siab.
Sib piv kom zoo dua cov pa alloys
Piv rau 316 stainless hlau, Incoloy 925 muaj kev tiv thaiv corrosion zoo tshaj hauv cov tshuaj chloride- nplua nuj nyob rau hauv marine ib puag ncig, tshwj xeeb tshaj yog nyob rau hauv cov kab mob (xws li, bolted pob qij txha, gasketed nto) qhov twg 316 yog nquag pitting. Nws kuj tseem muaj lub zog zoo dua qub ntawm qhov kub siab dua li cov nickel alloys ntshiab, ua rau nws tus nqi - zoo thiab siab - kev xaiv.
