Titanium vs Stainless hlau
Hlau yog ib qho hlau ua los ntawm hlau thiab carbon. Cov pa roj carbon feem pua tuaj yeem sib txawv nyob ntawm qib thiab feem ntau nws nyob nruab nrab ntawm 0.2% thiab 2.1% los ntawm qhov hnyav. Txawm hais tias cov pa roj carbon yog cov khoom tseem ceeb alloying rau hlau qee yam khoom xws li Tungsten, chromium, manganese kuj tuaj yeem siv rau lub hom phiaj. Ntau hom thiab ntau npaum li cas ntawm cov khoom siv alloying txiav txim siab hardness, ductility thiab tensile zog ntawm steel. Alloying lub luag haujlwm yog lub luag haujlwm tswj xyuas cov qauv siv lead ua lattice ntawm cov hlau los ntawm kev tiv thaiv kev tawg ntawm cov hlau atoms. Yog li, nws ua raws li tus neeg sawv cev hardening hauv steel. Qhov ceev ntawm cov hlau txawv ntawm 7, 750 thiab 8, 050 kg / m 3 thiab, qhov no cuam tshuam los ntawm cov khoom sib xyaw ua ke ib yam. Kev kho cua sov yog txheej txheem uas hloov cov khoom siv ntawm cov hlau. Qhov no yuav cuam tshuam rau ductility, hardness thiab hluav taws xob thiab thermal zog ntawm steel. Muaj ntau hom hlau xws li carbon steel, me me steel, stainless hlau, thiab lwm yam. Hlau yog tsuas yog siv rau kev tsim kho lub hom phiaj. Cov tsev, chaw ntau pob, railway lem, txuas hniav yog ob peb qhov chaw ntawm ntau qhov chaw uas siv hlau hnyav heev. Tsis tas li ntawd, lawv tau siv hauv tsheb, nkoj, dav hlau, tshuab, thiab lwm yam. Feem ntau ntawm cov khoom siv hauv tsev niaj hnub no kuj ua los ntawm cov hlau. Tam sim no feem ntau cov rooj tog kuj tau hloov los ntawm cov khoom steel.
YTitanium
Titanium yog lub caij nrog tus lej atomic 22 thiab lub cim Ti. Nws yog d block element thiab tam sim no nyob rau hauv 4 thlub sijhawm ntawm lub sijhawm teem sijhawm. Kev teeb tsa hluav taws xob ntawm Ti yog 1s2 2s2 2p63s2 3p64s23d2Ti feem ntau tsim cov tebchaw nrog +4 oxidation xeev, tab sis nws tseem tuaj yeem muaj +3 oxidation xeev. Atomic mass ntawm Ti yog txog 48 g mol-1
Ti yog cov hlau hloov pauv nrog cov xim ci ci. Nws yog muaj zog tab sis muaj tsawg ntom ntom thiab kuj corrosion resistant thiab ruaj khov. Nws muaj qhov melting point ntau dua ntawm 1668 o C. Titanium yog paramagnetic thiab muaj hluav taws xob tsawg thiab thermal conductivity. Muaj cov ntshiab Ti yog tsis tshua muaj vim nws yog reactive nrog oxygen. Cov txheej txheej titanium dioxide tsim ua raws li txheej tiv thaiv ntawm Ti thiab tiv thaiv nws los ntawm corrosion. Titanium dioxide muaj txiaj ntsig zoo hauv cov ntawv, xim thiab kev lag luam yas. Txawm hais tias Ti yog soluble hauv concentrated acids, nws tsis yog reactive nrog dilute inorganic thiab organic acids.
Cov khoom ntawm titanium ua rau nws siv tau ntau yam kev siv. Txij li nws tsis yooj yim corroded los ntawm dej hiav txwv, Ti yog siv los ua cov khoom nkoj. Tsis tas li ntawd, lub zog thiab lub teeb yuag tso cai rau Ti siv hauv dav hlau, foob pob hluav taws, cuaj luaj, thiab lwm yam. Ti tsis muaj tshuaj lom thiab siv tau rau biomaterial, ua rau nws tsim nyog rau kev siv biomaterial. Ti yog cov hlau muaj txiaj ntsig, yog li siv los ua cov hniav nyiaj hniav kub.
Stainless hlau
Stainless steel txawv ntawm lwm cov hlau alloys vim nws tsis corrode los yog xeb. Tsis tas li ntawd, nws muaj lwm yam khoom tseem ceeb ntawm steel raws li tau hais los saum toj no. Stainless hlau yog txawv los ntawm cov hlau vim muaj cov chromium tam sim no. Nws muaj tsawg kawg yog 10.5% mus rau 11% chromium tus nqi los ntawm huab hwm coj. Yog li nws tsim ib txheej chromium oxide uas yog inert. Qhov no yog vim li cas rau tsis muaj peev xwm corrosion ntawm stainless hlau. Yog li ntawd, stainless hlau yog siv rau ntau lub hom phiaj xws li nyob rau hauv lub tsev, monuments, tsheb, machinery, hniav nyiaj hniav kub, thiab lwm yam.
Qhov txawv ntawm Titanium thiab Stainless Hlau yog dab tsi?
• titanium yog ib yam khoom hos stainless hlau yog ib qho alloy ntawm carbon.
• Thaum siv cov hniav nyiaj hniav kub stainless hlau tuaj yeem ua rau muaj kev tsis haum rau qee tus neeg vim muaj cov hlau alloying nyob hauv nws. Hom tshuaj tiv thaiv no tsis tuaj yeem pom nrog titanium.
• Titanium yog denser dua stainless hlau.
