Duplex Stainless Hlau
Microsing Cov Ntsiab Lus
DuPlex stainless hlau (DSS) muaj cov microstructure ntawmferrite () thiab austenite (), nrog qee qib sib txuam nrog martensite. Qhov no dual -} pay qauv yog ua tiav los ntawm kev tswj cov ntsiab lus tseem ceeb:
Chromium (CR, 18-28%): Txhim kho corrosion tsis kam los ntawm kev tsim ib txheej oxide passive.
Npib tsib xee (ni, 4-10%): Txhab cov theem Austenitic thiab txhim kho kev nruj.
Molybdenum (mo, 2-5%): Nce tsis kam rau pitting thiab corrose corrosion.
Nitrogen (n, 0.1-0.3%): Txhawb zog muaj zog thiab qeeb theem ua phom sij nag lossis daus.
Tus50-50 Theem Sib Tsoosib txuas ntawmSiab zog ntawm ferritenrog tusductility thiab tawv ntawm austenite, thaum lubSynergistic nyhuv ntawm cov ntsiab lusntxiv txhim kho kev ua tau zoo.
Tseem Ceeb Zoo
Siab Zog & Lub Hnav Tsim:
Ferrite muabMuab ob npaug rau cov txiaj ntsig lub zogNtawm cov qauv Austenitic steels (piv txwv li, 304/316), pub thinner seem thiab cov khoom txuag.
Zoo tshaj corrosion Kuj:
TusCr - mo - n} h smergyXyuas kom muaj kev tsis kam zoo rau chloride -}} Qhov kev tawg ntau dua lossis sib npaug ntawm 35), kev ntxhov siab rau cov qib qis ntawm cov qib.
Zoo Weldability:
Lub dual - pay qauv hmoov nplej nyob rau hauv cov cua sov {}} weld annealing (tsis zoo li Marticitic cov hlau).
Tus Nqi Muaj Zog:
Txo cov ntsiab lus npib tsib xee (thiab cov hlau tsis muaj roj) txo cov rhiab rau cov lej uas tus nqi hloov pauv.
Raug cov qib yas & cov ntawv thov
Tag
Los ntawm kev sib txuasferritic lub zogthiabAustenitic toughnessNrog optimized alloying, duplex stainless hlau xa tawm tsis tauSib npaug ntawm cov khoom siv neeg kho tshuab, corrosion tsis kam, thiab tus nqi - ua hauj lwm zooCov. Lawv tau nce zuj zus hauvTshuaj lom neeg ua yeeb yam, marine engineering, thiab lub zog Sectors, nrog rau yav tom ntej nce qib kev cia siab rau hauvhigh - nitrogen alloysrau cov mob heev.
