Puas yog titanium alloy bulletproof?
Nyob rau hauv lub tshav pob ntawm cov khoom siv tub rog thiab kev tiv thaiv tshwj xeeb, ballistic kev ua tau zoo yeej ib txwm yog ib qho tseem ceeb qhia rau kev ntsuam xyuas cov khoom zoo. Thaum cov tsoos steel armor muaj lub zog siab, nws qhov hnyav hnyav thiab qhov cuam tshuam rau corrosion txwv nws daim ntawv thov scenarios. Titanium alloys, nrog rau lawv cov khoom tshwj xeeb ntawm lub cev thiab kev ua tau zoo, tau maj mam dhau los ua "cov peev txheej" hauv cov khoom siv niaj hnub ballistic. Los ntawm kev sib sib zog nqus- hiav txwv submarines mus rau thaj av- raws li tsheb armored, los ntawm aerospace mus rau ib tug tub rog tiv thaiv, ballistic kev ua tau zoo ntawm titanium alloys tau raug txheeb xyuas nyob rau hauv ntau yam xwm txheej, thiab nws txoj kev nyab xeeb thiab kev ua tau zoo tau raug lees paub los ntawm ntau thiab ntau thaj chaw.
Lub ballistic kom zoo dua ntawm titanium alloys stems feem ntau los ntawm lawv superior mechanical zog. Noj TC4 (Ti-6Al{14}}4V) alloy ua piv txwv, nws lub zog tshwj xeeb (lub zog rau qhov sib piv) yog 1.5 npaug ntawm cov hlau alloy. Nyob rau hauv tib theem kev tiv thaiv, titanium alloy armor tuaj yeem yog 25% -30% sib zog dua li cov cuab yeej steel. Lub tuam txhab Asmeskas ATK tau ua qhov kev sim sib piv: siv titanium alloy thiab cov qauv steel armor los tiv thaiv 7.62mm armor-piercing rounds, cov txiaj ntsig tau pom tias lawv qhov kev ua tau zoo sib xws, tab sis cov phiaj xwm titanium alloy yog 30% sib dua. Cov yam ntxwv no yog tshwj xeeb tshaj yog nyob rau hauv lub teb ntawm armored tsheb. Lub US Alfa-chav kawm nuclear submarines, los ntawm kev siv titanium alloy siab hulls, txo lawv qhov hnyav los ntawm 40% thaum tuav tib theem ntawm kev tiv thaiv, ho txhim kho underwater maneuverability thiab endurance. Tuam Tshoj tus Jiaolong manned submersible lub titanium alloy siab hull tau ntxiv ua pov thawj nws dual tsis kam rau siab siab thiab cuam tshuam nyob rau hauv ib tug 7000-meter tob-siav cheeb tsam.
Lub ballistic tiv thaiv mechanism ntawm titanium alloys yog ze ze rau lawv cov microstructure. Titanium alloys yog + dual-theem alloys; nyob rau hauv siab -kev cuam tshuam ceev, lawv cov qauv nplej tau zoo cuam tshuam cov kev ntxhov siab tsis muaj zog thiab inhibits kev nthuav tawm tawg. Kev sim cov ntaub ntawv qhia tau hais tias thaum titanium alloy phiaj phiaj phaj raug cuam tshuam los ntawm qhov projectiles, thawj hom tsis ua hauj lwm yog adiabatic shear plugging, es tsis yog qhov tawg ntawm cov ntaub ntawv hlau. Qhov no txhais tau hais tias titanium alloys tuaj yeem nqus tau ntau lub zog los ntawm cov yas deformation. Russia lub BT9 titanium alloy, nyob rau hauv simulated battlefield ib puag ncig, nthuav tawm ballistic tsis kam txawm superior rau ib co dov homogeneous armor steels, thiab tswj cov txheej txheem kev ncaj ncees tom qab muaj ntau yam cuam tshuam, txo cov kev pheej hmoo ntawm kev puas tsuaj theem nrab.
Rau qhov sib txawv daim ntawv thov scenarios, kev tiv thaiv ballistic kev ua tau zoo ntawm titanium alloys tuaj yeem txhim kho ntxiv los ntawm kev ua kom zoo ntawm cov hlau alloy thiab cov txheej txheem tshiab. Piv txwv li, tus nqi qis -tus nqi titanium alloy tsim los ntawm Tebchaws Meskas siv cov tshuab electron beam melting ib nrab hloov cov vanadium kim nrog hlau, txo cov nqi los ntawm 30% thaum tswj kev tiv thaiv ballistic. Tuam Tshoj tus TC21 titanium alloy, los ntawm kev ntxiv cov ntsiab lus xws li niobium thiab molybdenum, tuav lub zog siab txawm tias nyob ntawm 500 degree, ua rau nws tsim nyog rau cov khoom siv tiv thaiv hauv qhov kub siab - ib puag ncig. Tsis tas li ntawd, kev sib xyaw ntawm titanium alloys nrog cov khoom siv ceramic thiab fiber ntau yog ua rau lub cim tshiab ntawm cov khoom sib xyaw ua ke- titanium alloy li lub nraub qaum muab kev txhawb nqa tawv, thaum cov khoom siv ceramic yog lub luag haujlwm rau thawj lub zog nqus; qhov "rigid- hloov tau" tsim no txhim kho kev tiv thaiv ballistic ntau dua 40%.
Cov ntawv thov kev tiv thaiv ballistic ntawm titanium alloys tau nthuav dav los ntawm kev ua tub rog mus rau kev tiv thaiv pej xeem kev nyab xeeb. Nyob rau hauv qhov siab -kawg kev ruaj ntseg, titanium alloy mos txwv daim hlau yog siv los ua lub teeb yuag mos mos vests, hnyav tsuas yog 60% ntawm cov tsoos ceramic daim hlau, tseem muaj peev xwm tiv taus hluav taws. Nyob rau hauv aerospace teb, titanium alloys tsis yog tsuas yog siv nyob rau hauv lub mos txwv qauv ntawm aircraft fuselages tab sis kuj ua hauj lwm raws li ib tug tseem ceeb tiv thaiv Cheebtsam rau satellites thiab foob pob ua ntxaij, tiv thaiv kev cuam tshuam los ntawm qhov chaw khib nyiab. Txawm nyob rau hauv cov khoom siv kis las, titanium alloy golf qws taub hau, los ntawm kev txhim kho cov qauv tsim, ua tiav qhov sib npaug ntawm qhov cuam tshuam thiab hnav.
Los ntawm hiav txwv tob mus rau qhov chaw, los ntawm kev sib ntaus sib tua mus rau lub neej niaj hnub, titanium alloys yog reshaping toj roob hauv pes ntawm cov ntaub ntawv tiv thaiv nrog lawv "lub teeb yuag, siab -lub zog, corrosion-resistant, thiab ballistic{2}}resistant" yam ntxwv. Lawv qhov kev ua tau zoo ntawm cov mos txwv tsis yog tsuas yog tiv thaiv qhov kev sim ntawm huab cua ib puag ncig tab sis kuj tseem txuas ntxiv thawb ciam teb los ntawm kev hloov pauv hauv cov ntaub ntawv tshawb fawb thiab kev siv thev naus laus zis. Nrog rau kev txhim kho qis -tus nqi titanium alloys thiab kev loj hlob ntawm cov cuab yeej siv cuab yeej cuab tam, titanium alloys yuav tsum hloov cov khoom siv phom sij hauv ntau thaj chaw, muab cov kev daws teeb meem zoo dua thiab txhim khu kev qha rau tib neeg kev nyab xeeb.
