90/10 tooj liab npib tsib (feem ntau tsim raws liAlloy C70600Nyob rau hauv Astm / Asme cov qauv, lossis "CW302G" hauv European ENGOY-}}}} Cov khoom siv hauv marine, kev lag luam, thiab cov ntawv thov kev lag luam, thiab txheej txheem txheej txheem. Nws cov ntsiab lus tseem ceeb muaj xws li:
Tshwj Xeeb Ntawm Seasater Corrosion Kuj: Nov yog nws cov txiaj ntsig tseem ceeb tshaj plaws. Cov ntaub ntawv Alloy ib qho nyias, ua rau tus kheej-}}} olide olides thiab tooj liab oxides) thaum raug dej hiav txwv. Zaj duab xis no tiv thaiv ntxiv oxidation thiab tiv thaiv cov tub rog sib luag, pitting, thiab creve}
Zoo yuam kev thiab yaig tsis kam: Tsis zoo li tus tooj liab tsis zoo nkauj, 90/10 muaj cov hlau me me muaj cov hlau me (feem ntau 0.5% -1.0%) thiab muaj sib npaug ntawm 1.0%), uas txhim kho nws txoj kev tiv thaivKev loj hlob ntawm corrosion(Yaig los ntawm high - kua dej hauv kua nqa cov khoom, xws li xuab zeb hauv seaterater). Qhov no ua rau nws zoo tagnrho rau cov khoom sib xyaw xws li dej hiav txwv kev nqus dej, twj tsis muaj roj, thiab cov hlab cua sov.
Zoo heev Thermal conductivity thiab formability: Raws li tooj liab -}} W / {{}}}}}}} {tooj, 70/30 tooj liab npib tsib). Cov cuab yeej no yog qhov tseem ceeb rau cov ntawv thov cua sov, xws li marine txias tshuab. Ib qho ntxiv, nws muaj kev pom zoo zoo: hauv annealed xeev, nws tuaj yeem yooj yim khoov, welded, los yog machined rau hauv cov nyom ua si thiab cov nqi.
Tus nqi - ua tau zoo thiab ua tau zoo: Piv rau Nickel - rich ricoys (piv txwv li cas} {tooj liab qab cov ntsiab lus, ua rau muaj cov nqi qis dua. Tsis tau nws tseem yog outperforms ntshiab tooj liab lossis tooj dag hauv corrosion tsis kam, desalination cog cov khoom siv cua txias (desalination cog vaj tse) qhov twg ob qho kev ua tau zoo thiab nyiaj txiag yog qhov tseem ceeb.
Sib sau nrog marine muaj sia: Nws muaj tsawg biofouling muaj peev xwm - Barnacles, Algae, Algae) tsis tshua xa mus rau Steel lossis Aluminium. Qhov no txo qhov xav tau tu tu lossis anti -} kev kho cov nqi ntawm cov nqi sib npaug ntawm cov nyiaj sib zog.
Txawm tias nws ua tau zoo, 90/10 tooj liab Nickel muaj kev txwv uas txwv nws siv nyob rau qee qhov chaw lossis kev siv. Cov teeb meem tseem ceeb suav nrog:
Tsawg tsawg tiv taus kom txo cov kua qaub thiab cov txiv neej sulfide: Nws corrosion tsis kam yog heev nyob ntawm kev tsim ntawm lub ruaj khov oxide zaj duab xis, uas yuav tsum muaj oxidizing ib puag ncig (piv txwv li, dej hiav txwv nrog yaj oxygen). Hauv kev txo qhov chaw ib puag ncig- Xws li cov tshuaj acid (hclfurizers), lossis hydrogen sulfide (honds} cov oxide zaj duab xis tawg, ua rau kev ua yeeb yaj kiab oxide. Piv txwv li, nws yog qhov tsis zoo rau cov tso tsheb hlau luam chemical ua tso pa tawm cov kua qaub lossis cov roj av qib siab.
Txo lub zog thiab hardness piv rau siab - nickel alloys: Nrog cov ntsiab lus tsib xee tsawg dua (≈10%) dua 70/30 tooj liab npib tsib lossis monoys alloys, nws muaj qis dua zog thiab hardness. Nyob rau hauv Annealed xeev, nws lub zog tensile tsuas yog ≈275-345 mpa} {} {} {} {} Qhov kev txwv no txwv nws siv nyob rau hauv high- kev siv kev nyuaj siab, lossis cov fasteners uas yuav tsum muaj peev xwm siab.
Rhiab heev rau deplloying (xaiv leaching) hauv qee yam mob: Hauv kev txhoj puab heev, qis - oxygen, lossis siab} dej hiav txwv hauv cov dej hiav txwv, lossis dej khov kho), nws yuav raug mob heev rauhais lus- Tus txheej txheem uas cov neeg tooj liab nquag tshaj yog xaiv tau ntau dua yog xaiv lub ntsej muag, tawm ntawm lub ntsej muag, nkig {{1 {rabidue. Qhov kev ua kom tsis muaj zog no ua rau muaj kev tsis muaj zog no thiab tuaj yeem ua rau tsis ua tiav yog tias tsis hais (piv txwv li, hauv cov laus, tsis zoo tswj cov cua sov.
Siab dua thermal expansion coefficient tshaj cov hlau zoo li hlau: Nws muaj qhov siab tshaj plaws thermal nthuav tawm coefficient (≈17 × 10⁻⁶ / degree), uas yog qib 10 / degree) lossis stainless hlau × 10⁻⁶ / degree). Hauv kev thov nrog loj kub hloov pauv (piv txwv li, siab - Kev tawg rog, lossis txo qis kev siv hluav taws xob yog tias tsis them rau kev tsim nyog tsim qauv (piv txwv li, nthuav tawm pob qij txha).
Cov khoom siv siab dua thiab tsim cov nqi dua li tooj liab lossis tooj dag: Thaum lub sijhawm pheej yig dua li siab - nickel alloys, 90/10 tooj liab liab qab tooj liab, tooj dag, lossis tooj liab vim nws cov ntsiab lus npib tsib xee. Tsis tas li ntawd, nws txoj kev xav tau siv cov txuj ci tshwj xeeb (piv txwv li siv cov khoom siv khib nyiab kom tsis txhob muaj roj av
Yog, lub corrosion tiv taus ntawm 90/10 tooj liab npib yogmuaj zog thiab zoo {- teev}-}} Tseeb nyob rau hauv cov tub rog, ntug dej hiav txwv-}}} Kuv tau nyob ntawm qhov chaw tshwj xeeb (piv txwv li, oxidizing vs. txo cov xwm txheej, dej nrawm, kub). Hauv qab no yog cov ncauj lus kom ntxaws tawg ntawm nws corrosion tsis muaj zog thiab txwv rau cov ntsiab lus ntawm nws "lub zog":
Dej hiav txwv (raus thiab immospheric): Qhov no yog qhov 90/10 tooj liab li xee. Thaum raug rau dej hiav txwv, nws sai sai ua ib tug ntom, tsis muaj ntxhiab oxide zaj duab xis (Nickel Oxide + tooj liab oxide) uas ua raws li kev thaiv kev tiv thaiv kev xeb ntxiv. Ntev - Term xeem (piv txwv li, los ntawm International Nickel Tuam Txhab) qhia nws corrosion tus nqi hauv dej hiav txwv yog tsawg li0.01-0.05 mm / xyoo-far lower than pure copper (≈0.1 mm/year) or carbon steel (which corrodes at >1 hli / xyoo nyob rau hauv seawater). Nws tseem tiv thaiv pitting thiab crevice corrosion nyob rau hauv seawater, txawm nyob rau ntawm 60℃(140 Degree F), nkoj Hulls, thiab Offshore Buoyancy qauv.
Dej nag thiab cov dej brackish: Nws tswj hwm muaj zog nyob rau hauv dej ntshiab (piv txwv li cov dej ntws, pas dej) thiab cov dej ntws tshiab (xyaw cov nqi ntawm corresion)<0.1 mm/year. This makes it suitable for water treatment plants, freshwater piping, and cooling towers in coastal regions.
Cov Khoom Siv Hluav Taws Xob: Nws tiv taus atmospheric corrosion nyob rau hauv ib puag ncig nrog kev tsav cov av noo), piv txwv li, plua plav, plua plav, tsis muaj zog acids). Nws cov yeeb yaj kiab oxide tso tiv thaiv tarnishing thiab pitting, ua rau nws muaj txiaj ntsig rau sab nraum zoov cov khoom lag luam xws li vaj tse vajtse lossis cov cuab yeej siv khoom lag luam.
Thaum muaj zog tag nrho, nws corrosion tsis kam yogtsis universal:
Txo cov kua qaub: In solutions like concentrated hydrochloric acid (HCl) or sulfuric acid (H₂SO₄) without oxidizers (e.g., no oxygen, ferric ions), the protective oxide film dissolves, leading to rapid corrosion (rates >1 hli / xyoo).
Sulfide -} muaj ib puag ncig: Hydrogen sulfide (h₂s) (ib txwm nyob rau hauv kev siv dej pheeb suab lossis dej phwj tuaj nrog tooj liab sulpide {} {1} {{1} {{} {{1} {{1} {{
Pheej Yias, Tsawg - pa kua: Hauv kev tsis huv hiav txwv lossis cov tshuab kaw uas tau kaw (piv txwv li cov kab cua sov tsis tuaj yeem tsim txom tsis muaj oxygen ntws.
Nyob rau hauv nws npaj siv cov neeg mob siv - Cov tub rog tsis yooj yim, thiab cov chaw muaj tsheb me-90/10 Tooj liab Cuprosion tsis kam yogNtawm cov muaj zog tshaj ntawm tooj liab - raws li alloysThiab piv rau qee cov hlau uas tsis muaj roj (piv txwv li, 304 stainless hlau, txawm hais tias 304 yog ntau tshaj rau pitting hauv seawater). Nws lub zog "dag zog" nyob hauv nws lub peev xwm los muab kev xaiv ntev}}} kev ua haujlwm ntawm ntug dej hiav txwv lossis dej-}} kev siv. Txawm li cas los xij, nws tsis yog "universal corrosion {{}} {{{} {{12} {oxygen kua.
