Kev sib xyaw tooj liab thiab nickel tsim ib tsev neeg ntawm cov alloys hu ua tooj liab-nickel (Cu-Ni) alloys, uas muab cov khoom zoo tshaj plaws ntawm ob qho tib si hlau los ua cov khoom siv nrog cov yam ntxwv ua tau zoo tshwj xeeb. Qhov kev sib xyaw ua ke no hloov lawv cov yam ntxwv tus kheej mus rau hauv cov txiaj ntsig synergistic, uaCu-Ni alloystsis tseem ceeb hauv ntau yam kev siv hauv kev lag luam - thiab peb cov khoom Cu-Ni tau tsim los ua kom tau txiaj ntsig zoo tshaj plaws.
Ntawm theem molecular, tooj liab thiab nickel tsim cov kua khov thaum sib xyaw, txhais tau tias cov atoms ntawm ob qho hlau faib sib npaug thoob plaws hauv cov khoom siv. Qhov kev sib npaug no yog qhov tseem ceeb rau lawv cov khoom zoo dua. Tooj liab ntshiab yog cov khoom siv hluav taws xob zoo thiab yooj yim hloov pauv tab sis tsis muaj kev tiv thaiv xeb, thaum nickel yog cov khoom siv tawv thiab tiv thaiv xeb tab sis tsis tshua muaj kev coj ua. Ua ke, lawv tsim cov khoom siv uas sib npaug cov yam ntxwv no.
Ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws ntawm qhov sib tov no yog kev tiv thaiv xeb zoo dua. Cov ntsiab lus nickel hauv Cu-Ni alloys tsim cov txheej oxide ntom ntom, tiv thaiv ntawm qhov chaw, tiv thaiv cov khoom los ntawm dej ntsev, kua qaub, thiab cov tshuaj lom neeg kev lag luam. Qhov no ua rau Cu-Ni alloys zoo tagnrho rau cov chaw nyob hauv hiav txwv, xws li lub nkoj hulls, cov kav dej hiav txwv, thiab cov platforms offshore, qhov twg tooj liab ntshiab yuav sai sai corrode. Peb cov khoom Cu-Ni, tsim rau cov chaw nyuaj no, tiv taus pitting, crevice corrosion, thiab erosion, kom ntseeg tau tias lub sijhawm ntev.
Lub zog kho tshuab kuj tau txais kev txhawb nqa los ntawm kev sib xyaw ua ke ntawm tooj liab-nickel. Cu-Ni alloys muaj zog thiab nyuaj dua li tooj liab ntshiab, thaum khaws cia zoo ductility. Qhov no tso cai rau lawv kom tiv taus kev ntxhov siab siab hauv kev siv xws li twj tso kua mis, valves, thiab cov cua sov sib pauv. Tsis zoo li tooj liab ntshiab, uas tuaj yeem deform nyob rau hauv cov khoom hnyav, peb cov xov hlau Cu-Ni thiab cov ntawv tswj hwm kev ua haujlwm txawm tias nyob rau hauv cov xwm txheej nyuaj, txo cov kev xav tau txij nkawm.
Cov khoom siv hluav taws xob thiab thermal conductivity tseem zoo kawg nkaus hauv Cu-Ni alloys, txawm tias qis dua li tooj liab ntshiab me ntsis. Qhov no ua rau lawv haum rau cov khoom hloov pauv cua sov thiab cov khoom siv hluav taws xob qhov twg kev tiv thaiv corrosion yog qhov tseem ceeb npaum li kev ua tau zoo. Piv txwv li, hauv cov nroj tsuag desalination, peb cov raj Cu-Ni hloov pauv cua sov tau zoo thaum tiv taus cov teebmeem corrosive ntawm dej ntsev.
Peb cov khoom Cu-Ni muaj nyob rau hauv ntau yam kev sib xyaw, nrog rau cov ntsiab lus nickel xws li 10% txog 30%,ua raws li cov kev xav tau ntawm daim ntawv thov tshwj xeeb. Txawm koj xav tau cov xov hlau nyias nyias rau cov khoom sib xyaws lossis cov ntawv tuab rau cov qauv hnyav, peb qhov kev tsim khoom raug ua kom ntseeg tau tias muaj qhov zoo thiab kev ua tau zoo. Los ntawm kev siv cov txiaj ntsig tshwj xeeb ntawm kev sib xyaws tooj liab-nickel, peb cov khoom xa tuaj rau kev ntseeg tau thiab lub neej ntev hauv cov chaw uas cov hlau ntshiab tsis txaus.
Lub sijhawm tshaj tawm: Lub Yim Hli-29-2025
