Hais txog tooj liab-nickel alloy
1. Kev faib tawm ntawm tooj liab-nickel alloys
Daim duab 1 qhia txog qib thiab cov ntsiab lus ntawm cupronickel alloy. Cupronickel tuaj yeem muab faib ua manganese cupronickel, hlau cupronickel, zoo tib yam cupronickel, aluminium cupronickel thiab zinc cupronickel. Vim muaj cov ntsiab lus sib txawv ntawm Ni keeb, nws cov khoom sib txawv, thiab cov sijhawm thov kuj txawv. txawv. Vim nws irreplaceable corrosion kuj thiab ntau yam khoom superior rau tsoos alloys, nws muaj peev xwm siv tau zoo.
2. Khoom thiab kev siv ntawm tooj liab-nickel alloys
Ordinary dawb tooj liab feem ntau yog cov qauv tooj liab-nickel alloy. Ntxiv nrog rau nws cov kev tiv thaiv corrosion siab, nws kuj muaj cov khoom siv zoo txhua yam ntawm qhov kub thiab txias, uas yog, zoo plasticity thiab toughness. Nws feem ntau yog siv los ua rods lossis strips. Nyob rau tib lub sijhawm, ntxiv qee cov kab hlau rhuav tshem xws li Fe, Mn, Zn thiab Al ntawm lub hauv paus ntawm cov tooj liab zoo tib yam tuaj yeem ua tiav cov kev xav tau tshwj xeeb hauv kev siv tswv yim thiab ua tau raws li kev xav tau ntawm kev lag luam. Feem ntau siv hlau-nickel tooj liab yog BFe10-1-1 (C70600) thiab BFe30-1-1 alloy kav. Cov khoom siv kho tshuab hauv lub xeev nyuaj yuav tsum tau raws li: tensile zog Ntau dua los yog sib npaug rau 370MPa, yield zog Ntau dua los yog sib npaug rau 150MPa, elongation Ntau dua los yog sib npaug rau 18%, Vickers hardness Ntau dua los yog sib npaug rau 85; corrosion kuj: corrosion npaum (50 degree, 3.5% NaCl seawater) Tsawg dua los yog sib npaug rau 0.025mm/a, pitting corrosion tsis pub. Manganese dawb tooj liab (BMn{14}} alloy) muaj qhov nruab nrab kuj coefficient, me me kuj kub coefficient thiab yog qhov ruaj khov. Vim nws cov khoom hluav taws xob zoo, BMn 3-12 alloy tuaj yeem siv los ua tus qauv resistors thiab cov khoom tiv thaiv ntawm lwm cov cuab yeej precision. Nrog rau txoj kev loj hlob ntawm lub sij hawm, qhov yuav tsum tau rau qhov precision ntawm cov twj paj nruag tau nce siab dua, yog li kev tshawb fawb ntawm cov hlau no tsis tuaj yeem tso tseg ntawm kev hloov cov alloy muaj pes tsawg leeg thiab cov ntsiab lus [6]. Los ntawm annealing, kab rov tav extrusion tsis ua hauj lwm thiab cov txheej txheem kos duab, BMn 3-12 alloy muaj tshwj xeeb coherent ntxaib ciam teb, uas tuaj yeem txhim kho lub zog ntawm cov khoom tsis cuam tshuam rau cov khoom siv. BMn40-1.5 alloy yog ib qho hluav taws xob tooj liab-nickel alloy uas tau siv ua ntej BMn3-12 alloy. Vim tias nws qhov kub me me coefficient ntawm kev ua haujlwm, nws muaj qhov kub zoo dua thiab tuaj yeem siv rau hauv qhov kub thiab txias. Piv nrog BMn 3-12 alloy, BMn 40-1.5 alloy muaj qhov ntsuas kub ntau dua tiv thaiv tooj liab, yog li nws yog qhov tsim nyog rau cov khoom siv hluav taws xob zoo, zawv zawg resistors, pib thiab tswj kev hloov pauv thiab cov ntsuas ntsuas tsis haum rau AC [8 ]. Aluminium-nickel tooj liab muaj ob lub zog siab thiab zoo plasticity thiab toughness. Ntawm lawv, BAl 13-3 alloy feem ntau yog siv los ua kom muaj zog dua corrosion-resistant qhov chaw, thiab BAl 16-1.5 alloy yog siv los ua cov tiaj tiaj tiaj nrog kev siv tseem ceeb. Rau lub sijhawm ntev, txhawm rau txhim kho kev ua haujlwm ntawm aluminium-nickel tooj liab, ib qho me me ntawm cov kab lus feem ntau tau ntxiv los tsim kom muaj zog matrix ntawm aluminium-nickel tooj liab, uas muaj cov conductivity zoo thaum tuav lub zog siab kom tau raws li cov kev xav tau ntawm daim ntawv thov. . Vim tias txhuas-nickel tooj liab muaj lub zog siab, muaj hluav taws xob zoo thiab hnav tsis kam, nws tuaj yeem siv los ua cov khoom siv rau cov hlau lead thiab cov khoom hnav-tiv taus [9-11].
Zinc cupronickel (BZn{0}}BZn15-20 alloy) kuj hu ua "German silver" [12]. Vim tias zinc-nickel tooj liab muaj qhov zoo ntawm lub zog tensile zoo, qaug zog tsis kam, thiab corrosion kuj, nws yog tsuas yog siv los ua lub plhaub ntawm cov khoom siv lossis cov khoom siv lead ua, cov khoom siv kho mob, cov khoom siv, thiab cov cuab yeej cua tshuab plhaub [13].
3. Copper-nickel alloy kev ua tau zoo
Nrog rau txoj kev loj hlob sai ntawm kuv lub teb chaws txoj kev lag luam shipbuilding, offshore roj thiab roj kev lag luam, marine mining, marine power thiab seawater desalination industries, cov kev xav tau ntawm cov khoom siv tau nce siab dua [16]. Ntawm lawv, cov kav dej tooj liab-nickel alloy feem ntau yog siv. Copper alloy condenser kav rau cov nkoj tau ntev ua haujlwm nyob rau hauv qhov kub thiab txias, siab siab thiab corrosive txias nruab nrab - seawater ib puag ncig. Yog li ntawd, nws tsis txaus rau cov tshuaj muaj pes tsawg leeg, txhua yam khoom, thiab seawater corrosion kuj ntawm cov khoom kom tau raws li qhov yuav tsum tau ua. Cov kev cai nruj me ntsis yuav tsum tau muab tso rau ntawm qhov tseeb ntawm qhov geometric dimension, kev ua tau zoo ntawm cov txheej txheem, lub koom haum sab hauv thiab lwm yam ntsuas. Nyob rau tib lub sijhawm, cov kav dej tooj liab-nickel alloy tseem yuav tsum muaj kev tiv thaiv corrosion zoo. , high heat transfer coefficient, loj txoj kab uas hla, siab precision, zoo heev mechanical vuam tshuab, thiab muaj peev xwm zoo inhibit qhov adhesion ntawm marine microorganisms [17] thiab lwm yam ntxwv.
