Nyob rau hauv lub realm ntawm cov ntaub ntawv science, ib hom tshiab ntawm stainless hlau hu ua duplex stainless hlau yog ua nthwv dej.Qhov zoo kawg nkaus alloy no muaj cov qauv tshwj xeeb, nrog rau theem ferrite thiab austenite theem txhua tus accounting rau ib nrab ntawm nws cov qauv hardened.Txawm ntau intriguing yog qhov tseeb hais tias qhov tsawg kawg nkaus theem cov ntsiab lus tuaj yeem ncav cuag 30%.
Duplex stainless hlau nthuav tawm cov khoom siv kho tshuab zoo heev vim nws ob theem.Nrog cov ntsiab lus qis carbon, cov ntsiab lus chromium nyob ntawm 18% mus rau 28%, thaum cov ntsiab lus nickel sawv ntawm 3% thiab 10%.Ntxiv nrog rau cov khoom tseem ceeb no, qee hom duplex stainless hlau kuj suav nrog cov ntsiab lus alloying xws li molybdenum (Mo), tooj liab (Cu), niobium (Nb), titanium (Ti), thiab nitrogen (N).
Cov yam ntxwv tshwj xeeb ntawm cov hlau no nyob rau hauv qhov tseeb tias nws muab cov khoom zoo tshaj plaws ntawm ob qho tib si austenitic thiab ferritic stainless hlau.Tsis zoo li nws cov ferrite counterpart, duplex stainless hlau boasts ntau dua plasticity thiab toughness.Tsis tas li ntawd, nws qhia tau zoo heev rau kev ntxhov siab corrosion cracking, ua rau nws xav tau ntau yam kev siv.
Ib qho tseem ceeb tshaj plaws uas ua rau duplex stainless hlau sib nrug yog nws tsis kam mus rau pitting corrosion, uas yog ib hom kev xeb uas tau ntsib nyob rau hauv ib puag ncig hnyav xws li marine thiab tshuaj ua lag luam.Qhov kev tiv thaiv corrosion no tuaj yeem raug ntaus nqi rau cov alloy siab dua chromium thiab molybdenum cov ntsiab lus piv rau cov tsoos stainless hlau.
Qhov tshwj xeeb microstructure ntawm duplex stainless hlau txhim kho nws cov kav ntev, ua rau nws haum rau ntau yam kev siv.Nws pom kev siv dav hauv kev lag luam uas xav tau cov ntaub ntawv muaj zog thiab corrosion-resistant, nrog rau kev tshawb nrhiav cov roj thiab roj, cov nroj tsuag desalination, tshuaj ua haujlwm, thiab kev thauj mus los.
Tsis tas li ntawd, cov hlau no lub zog siab ua kom sib zog thiab siv tau zoo dua, tso cai rau kev lag luam kom ua tau zoo dua.Nws qhov tshwj xeeb tsis kam tiv thaiv corrosion hauv zos ua kom lub neej ntev dua rau cov khoom siv thiab cov qauv, txo cov nqi kho mob hauv lub sijhawm ntev.
Nyob rau hauv xyoo tas los no, qhov kev thov rau duplex stainless hlau tau pom muaj kev nce ntxiv, nrog rau cov tuam txhab tsim cov qib tshiab kom haum rau ntau yam kev siv tshwj xeeb.Cov kev tsim kho no tsom mus rau kev ua kom zoo dua qub xws li kev tiv thaiv corrosion, lub zog, thiab weldability, ntxiv rau kev nthuav dav hlau ntau yam kev siv.
Nrog rau kev tshawb fawb thiab kev loj hlob tsis tu ncua, lub neej yav tom ntej ntawm duplex stainless hlau zoo li pheej hmoo.Cov kws tshawb fawb thiab engineers txuas ntxiv tshawb nrhiav txoj hauv kev los txhim kho nws cov yam ntxwv thiab nthuav dav nws cov kev siv tau rau ntau yam kev lag luam.
Raws li kev lag luam siv zog rau kev coj ua kom ruaj khov, duplex stainless hlau muab cov kev daws teeb meem zoo vim nws lub neej ntev, rov ua dua tshiab, thiab txo qhov xav tau kev saib xyuas.Qhov no ib puag ncig tus phooj ywg nam nws yog ib tug formidable contender nyob rau hauv kev sib tw rau sustainable cov ntaub ntawv.
Nyob rau hauv cov ntsiab lus, duplex stainless hlau sawv cev rau ib tug zoo kawg li kev puas tsuaj nyob rau hauv cov ntaub ntawv kev tshawb fawb, combining cov yam ntxwv zoo tshaj plaws ntawm austenitic thiab ferritic stainless hlau.Nrog nws cov khoom siv tshwj xeeb tshwj xeeb, tsis kam tiv thaiv ntau hom kev xeb, thiab kev xav tau thoob plaws hauv kev lag luam, cov hlau tshiab no tau npaj los hloov kho txoj hauv kev uas peb mus txog cov qauv tsim thiab kev siv lag luam.
Post lub sij hawm: Lub Xya hli ntuj-18-2023