Lub ntsiab sib txawv ntawmAustenitic Stainless Hlauthiab ferritic stainless hlau lus dag nyob rau hauv lawv cov qauv zoo thiab khoom.
Anustenitic Stainless hlau yog ib lub koom haum uas tseem nyob ruaj khov tsuas yog nyob ntawm qhov ntsuas kub siab dua 727 ° C. Nws ua rau cov qauv zoo zoo thiab yog cov qauv uas nyiam tshaj plaws rau feem ntau cov xim txuas ntxiv ua tiav ntawm kev nce siab kub. Tsis tas li ntawd, Austenitic steel yog qhov tsis sib nqus.
Ferrite yog qhov kev daws teeb meem ntawm cov roj carbon yaj hauv α-hlau, feem ntau ua cim raws F. hauvStainless hlau, "Ferrite" yog hais txog cov kev daws teeb meem ntawm cov pa roj carbon hauv α-hlau, cim los ntawm nws cov kev txwv solubility. Nyob rau hauv chav tsev kub, nws tsuas tuaj yeem yaj mus txog 0.0008% carbon, ncav tau ib qho solubility ntawm 0.02% ntawm 727 ° C, thaum tswj hwm lub cev-nruab nrab ntawm lub cev lattice. Nws yog feem ntau sawv cev los ntawm lub cim F.
Ntawm qhov tod tes, ferriticStainless hlauyog hais txog rau stainless hlau feem ntau tsim ntawm cov qauv ferritic thaum siv. Nws muaj chromium nyob rau hauv thaj tsam ntawm 11% mus rau 30%, muaj lub cev-nruab nrab cubic crystal crystal. Cov hlau cov ntsiab lus ntawm stainless hlau yog tsis cuam tshuam rau seb nws tau cais raws li cov hlau ferritic stainless.
Vim nws cov ntsiab lus carbon qis, ferritic stainless hlau nthuav tawm cov hlau ntshiab zoo li cov hlau ntshiab, suav nrog kev sib txuas tau zoo heev (Δ) ntawm 45% txog 50%. Txawm li cas los xij, nws lub zog thiab hardness yog qhov tsis tshua muaj, nrog lub zog tensile (σB) ntawm kwv yees li 250 mpa thiab lub harinell hardness (HBS) ntawm 80.
Lub Sijhawm Post: Dec-25-2023