Tooj liab (Cu) thiab tooj liab-nickel (copper-nickel (Cu-Ni) alloys yog ob qho tib si cov ntaub ntawv muaj nqis, tab sis lawv cov khoom sib txawv thiab cov khoom ua rau lawv haum rau ntau daim ntawv thov. Kev nkag siab txog cov kev sib txawv no yog qhov tseem ceeb rau kev xaiv cov khoom siv zoo rau koj qhov project - thiab thaum nws los txog rau qhov chaw xav tau, peb cov khoom Cu-Ni sawv tawm ua qhov kev xaiv zoo dua.
Hauv nws lub hauv paus, tooj liab ntshiab yog ib hom hlau mos mos, yooj ywm uas paub txog kev ua hluav taws xob thiab cua sov zoo heev. Nws yog ib qho yooj ywm heev, ua rau nws yooj yim rau kev ua cov xov hlau, cov kav dej, thiab cov ntawv, uas piav qhia txog nws txoj kev siv dav hauv kev txuas hluav taws xob thiab cov khoom sib pauv cua sov. Txawm li cas los xij, tooj liab ntshiab muaj cov kev txwv tseem ceeb: nws yooj yim rau xeb hauv cov chaw ib puag ncig hnyav, tshwj xeeb tshaj yog thaum raug dej ntsev, kua qaub, lossis cov pa phem hauv kev lag luam. Raws li lub sijhawm dhau mus, nws tsim cov xim ntsuab patina (txheej oxidation), uas tuaj yeem ua rau cov khoom tsis muaj zog thiab ua rau kev ua haujlwm tsis zoo hauv cov ntawv thov xws li kev ua haujlwm hauv hiav txwv lossis tshuaj lom neeg.
Cu-Ni alloys, los ntawm qhov sib piv, muab tooj liab nrog nickel (feem ntau yog 10-30% nickel, ntxiv rau me ntsis hlau thiab manganese) los daws cov teeb meem no. Qhov kev sib xyaw no hloov pauv cov khoom ntawm cov khoom, pib nrogkev tiv thaiv corrosion zoo duaCov ntsiab lus nickel tsim ib txheej oxide tiv thaiv uas tiv taus pitting, crevice corrosion, thiab erosion - txawm tias nyob rau hauv dej ntsev, dej brackish, lossis industrial effluents. Qhov no ua rau Cu-Ni zoo tagnrho rau cov khoom marine xws li lub nkoj hulls, seawater intake systems, thiab offshore roj rig piping, qhov twg tooj liab ntshiab yuav sai sai degrade.
Lub zog kho tshuab yog lwm qhov chaw uas Cu-Ni ua tau zoo dua li tooj liab ntshiab. Thaum tooj liab ntshiab yog ductile, nws tsis muaj lub zog tensile uas xav tau rau cov ntawv thov kev ntxhov siab siab. Cu-Ni alloys, ua tsaug rau lawv cov khoom sib xyaw, muab lub zog thiab qhov nyuaj dua, ua rau lawv haum rau cov khoom hnyav xws li twj tso kua mis, li qub, thiab cov raj hloov pauv cua sov. Lawv kuj tseem khaws qhov yooj ywm, tso cai rau kev tsim khoom yooj yim yam tsis muaj kev txi kev ruaj khov.
Hais txog kev ua kom sov thiab hluav taws xob zoo, tooj liab ntshiab tseem ua rau muaj kev ua kom sov txaus, tab sis Cu-Ni tswj tau qhov ua kom sov txaus rau feem ntau ntawm cov kev xav tau hauv kev lag luam - thaum ntxiv qhov txiaj ntsig tseem ceeb ntawm kev tiv thaiv xeb. Qhov sib npaug no ua rau Cu-Ni yog cov khoom siv xaiv hauv cov chaw uas ob qho tib si kev ua tau zoo thiab lub neej ntev tseem ceeb.
Peb cov khoom Cu-Ni tau tsim los siv cov txiaj ntsig no. Muaj ntau hom (cov xov hlau, cov ntawv, cov raj) thiab cov khoom sib xyaw ua ke nickel, lawv tau tsim ua kom raug raws li cov qauv kev lag luam nruj. Txawm hais tias rau kev tsim kho dej hiav txwv, kev ua tshuaj lom neeg, lossis cov tshuab kev lag luam, peb cov khoom Cu-Ni xa kev ntseeg siab, lub neej ntev, thiab kev siv nyiaj tsim nyog uas tooj liab ntshiab tsis tuaj yeem sib piv. Xaiv Cu-Ni rau cov ntawv thov uas kev ua tau zoo hauv cov xwm txheej hnyav tsis tuaj yeem sib tham tau - thiab ntseeg peb cov khoom kom dhau koj qhov kev cia siab.
Lub sijhawm tshaj tawm: Cuaj hlis-12-2025
