Cov yam ntxwv thiab kev siv ntawm titanium thiab titanium alloys

Cov yam ntxwv thiab kev siv ntawm titanium thiab titanium alloys
Ntshiab titanium muaj lub zog tsawg thiab siab melting point, tab sis muaj lub zog tshwj xeeb, zoo plasticity thiab tsis tshua muaj kub toughness, zoo corrosion kuj, thiab yog ib qho yooj yim rau txheej txheem thiab zoo. Ntshiab titanium muaj kev tiv thaiv zoo heev hauv cov huab cua thiab dej hiav txwv, thiab ruaj khov hauv sulfuric acid, hydrochloric acid, nitric acid thiab lwm yam xov xwm. Raws li purity ntawm titanium txo qis, lub zog nce thiab plasticity txo qis heev.
Nws muaj cov tshuaj ua haujlwm siab heev thiab ua rau muaj zog nrog Cl, O, S, C, N, thiab lwm yam (ntawm qhov kub siab). Nyob rau hauv lub xeev cov kua, nws reacts nrog yuav luag tag nrho cov crucibles tsuas yog ThO2. Nws tsuas yog smelted nyob rau hauv lub tshuab nqus tsev hluav taws xob arc rauv.
Zoo weldability; zoo stamping kev ua tau zoo; tab sis tsis zoo hnav tsis kam; Tsawg elastic modulus (120GPa), txog 54% hlau; Tsawg thermal conductivity thiab linear expansion coefficient. Nws cov thermal conductivity yog ob peb zaug qis dua cov hlau, thiab nws yog qhov ua rau kub gradients thiab thermal stress thaum siv.

Ntxiv cov ntsiab lus alloying rau cov ntshiab titanium txhim kho thiab ntxiv dag zog rau nws cov khoom los tsim cov titanium alloy, uas muaj lub zog siab, kub tsis kam, thiab corrosion kuj. Nws muaj cov khoom tsis sib nqus, tsis tshua muaj kev cuam tshuam cov yam ntxwv ntawm lub suab tsis zoo thiab kev co, biocompatibility zoo, thiab yog sib xws nrog carbon. Cov ntaub ntawv sib xyaw ua ke muaj kev sib raug zoo thiab muaj cov khoom zoo xws li cov khoom siv hluav taws xob, cov cim xeeb thiab cov khoom siv hydrogen. Txawm li cas los xij, lawv kuj muaj qee qhov tsis txaus, xws li kev ua haujlwm kub nyuaj, kev ua haujlwm tsis zoo, kev ua haujlwm tsis zoo, thiab kev hnav tsis zoo.
Kev faib tawm ntawm titanium alloy: -Titanium alloy muaj qhov kub thiab txias (<500℃), good structural stability, and good weldability. It is the main component of heat-resistant titanium alloy, but it cannot be strengthened by heat treatment, has low strength at room temperature, and low plasticity;
titanium alloy: siab zog ntawm chav tsev kub, tuaj yeem ua kom muaj zog los ntawm kev kho cua sov, tab sis cov qauv tsis ruaj khov txaus; vuam kev ua tau zoo tsis zoo;
β-titanium alloy and near-β titanium alloy: have good plastic processing properties (quick cooling to obtain β structure), high mechanical properties (strength can be improved through aging), and have the greatest potential for the development of high-strength (tensile strength >1400-1500MPa) titanium alloys. alloy, tab sis cov qauv kev ruaj ntseg tsis zoo thiab kev ua haujlwm kub qis dua 200 degrees
Tam sim no, tsuas yog carbon fiber reinforced plastics muaj lub zog tshwj xeeb tshaj li titanium alloys, thiab titanium alloys yog cov ntaub ntawv hlau uas muaj lub zog tshwj xeeb tshaj plaws. Yog li ntawd, nws tseem hu ua "qhov chaw hlau", uas yog lub ntsiab yog vim li cas titanium alloy yog dav siv nyob rau hauv kev lag luam aviation. Piv txwv li, nyob rau hauv dav hlau cav, titanium alloys feem ntau yog siv los ua compressor disks, compressor hniav, cav npog, combustion chamber casings, thiab dav hlau kav.

Kev siv thaj chaw ntawm titanium thiab titanium alloys
Aerospace: dav hlau cav Cheebtsam, fuselage Cheebtsam, foob pob ua ntxaij, satellites, missiles thiab lwm yam Cheebtsam
Compressor thiab kiv cua hniav, discs, casings, qhia vanes, shafts, tsaws iav, flaps, spoiler, cav
Nacelle, bulkheads, tis spars, roj tso tsheb hlau luam, boosters
Chemistry, petrochemicals thiab kev lag luam dav dav: electrolyzers, reactors, steamers rau chlor-alkali, soda tshauv, plastics, petrochemicals, metallurgy, ntsev thiab lwm yam lag luam
Distillation kab, concentrators, separators, heat exchangers, kav, electrodes, thiab lwm yam.
Nkoj: Submarine siab hull, kiv cua, dej dav hlau kiv cua, seawater tshav kub exchanger system, nkoj twj tso kua mis (valve thiab kav dej)
Marine engineering: pipelines rau seawater desalination, twj, li qub, yeeb nkab fittings rau offshore roj drilling, thiab lwm yam.
Biomedicine: Artificial pob qij txha, kev cog hniav cog hniav thiab orthodontics, pacemakers, cardiovascular stents, cov cuab yeej phais, thiab lwm yam.
Cov khoom ua si: golf hau, ntaus pob tesniv, ntaus pob tesniv, billiard cues, hiking sticks, ski ncej, ice skates, thiab lwm yam.
Cov khoom siv niaj hnub: iav thav duab, watches, crutches, nuv ntses, cov khoom siv hauv chav ua noj, cov khoom siv digital, khoom siv tes ua, kho kom zoo nkauj, thiab lwm yam.
Kev tsim kho: ru tsev, sab nrauv phab ntsa, kho kom zoo nkauj, kos npe, railings, kav dej, thiab lwm yam ntawm cov tsev
Tsheb: tsheb tso tsheb hlau luam thiab cov twj tso kua mis, lub tshuab nqa cov kabmob, txuas cov pas nrig thiab bolts, thiab lwm yam.