Muaj cov hlau uas yuav tsum tau tiv taus cov sij hawm raug hluav taws kub tshaj 1,000 degrees Celsius ntawm qhov siab ntawm 10,000 meters yam tsis muaj deforming; tseem nws yuav tsum tau nyob twj ywm nyob twj ywm nyob rau hauv tib neeg lub cev rau ntau xyoo lawm yam tsis tau txais kev pom zoo, corroded, los yog loosened. Ob qhov xwm txheej no xav tau qhov zoo sib xws los ntawm cov khoom siv. Ib qho yuav tsum muaj siab heev - qhov kub thiab txias, thaum lwm qhov xav tau ntev - lub sij hawm sib raug zoo nrog cov ntaub so ntswg nyob. Txawm li cas los lawv ob leeg taw rau tib lub hlau -titanium alloy.
Nov yog lo lus nug: Vim li cas nws thiaj li siv qee cov titanium alloys siv rau hauv cov cav, thaum lwm tus siv hauv tib neeg lub cev?
Cov lus teb tsis pom nyob rau hauv lub sij hawm lub sij hawm, tab sis nyob rau hauv lub invisible "structure" nyob rau hauv lawv.
I. Lub zog ntawm Titanium: Lub teeb yuag, muaj zog, thiab ruaj khov
Yuav kom nkag siab tias yog vim li cas titanium alloys siv nyob rau hauv ntau lub teb, peb yuav tsum xub saib lawv "lub Hoobkas chaw." Ib qho kev ntxim nyiam tshaj plaws ntawm titanium yog qhov sib xyaw ua ke ntau qhov zoo uas feem ntau tsis sib haum xeeb nrog ib leeg: nws muaj qhov ntom ntom qis dua li cov hlau, tab sis nws lub zog sib tw ntawm ntau cov qauv hlau; nws yog corrosion-resistant thiab nyob ruaj khov nyob rau hauv ntau qhov chaw hnyav; thiab nws tseem tuaj yeem tiv taus cov loads ntawm qhov kub nruab nrab.
Qhov tseem ceeb tshaj, ntshiab titanium muaj peev xwm "hloov pauv." Ntawm qhov kub thiab txias, nws cov atoms tau teem rau hauv ib qho ze - cov qauv ntim; thaum qhov kub nce siab tshaj qhov tseem ceeb, nws hloov mus rau qhov sib txawv. Hauv cov ntaub ntawv tshawb fawb, tus qub hu ua theem, thiab tom kawg yog hu ua theem. Yuav luag tag nrho cov titanium secrets yog encapsulated nyob rau hauv ob tsab ntawv no: muab stability thiab toughness, thaum muaj malleability thiab muaj peev xwm.
II. TI6AL4V: "Tus Tij Laug Loj" Ua Tau Txhua Yam -thiab Nws Puas Zoo Yog tias koj tsuas nco tau ib lub npe los ntawm tsev neeg titanium alloy, feem ntau nws yuav yog TI6AL4V. Nws belongs rau + ob-theem titanium alloy qeb, muaj ob theem ruaj khov thiab cov theem tsim nyog. Qhov kev teeb tsa "ib nrab-thiab{11}}ib nrab" no tsis ua rau muaj kev sib haum xeeb, tab sis tsis tshua muaj qhov sib npaug: muaj zog txaus, ductility zoo, kuj zoo machinability, thiab ruaj khov tag nrho kev ua tau zoo. Qhov kev vam meej ntawm TI6AL4V tsis yog los ntawm kev ua tau zoo hauv ib qho, tab sis los ntawm kev ua tau zoo nyob thoob plaws hauv pawg thawj coj.
III. Ti-6.5Al-3.5Mo-1.5Zr-0.3Si: Dhia tob me ntsis rau hauv tshav kub
Standard ob-theem titanium alloys pib "mos" ntawm qhov kub thiab txias-lawv lub zog txo qis, thiab qhov ntev ntawm cov cua sov ua rau lawv maj mam deform. Txhawm rau tswj lawv txoj kev ncaj ncees ntawm qhov kub thiab txias, qhov sib xyaw ntawm Gr5 ib leeg tsis txaus.Ti-6.5Al-3.5Mo-1.5Zr-0.3S yog tsim tshwj xeeb rau daim ntawv thov "heat-resistant". Los ntawm kev kho qhov sib npaug ntawm cov ntsiab lus alloying, nws cov microstructure tseem nyob ruaj khov ntawm qhov kub thiab txias, muab kev tiv thaiv zoo tshaj rau kev nkag thiab muag muag.
Nyob rau hauv luv luv: Titanium alloys feem ntau hu ua "universal hlau," tab sis qhov no versatility tsis yog innate. Nws lub hauv paus nyob hauv "zoo li-hloov" duplex qauv, thiab nws lub peev xwm txiav txim siab los ntawm tib neeg kev tswj hwm nws cov microstructure. Los ntawm kev sib npaug duplex alloys rau cov cua sov-cov qauv tiv thaiv, thiab mus rau ze - cov tshuab uas ua kom nws muaj peev xwm, txhua kauj ruam ntawm qhov kev nthuav dav no yog tsav los ntawm ib qho, yooj yim hauv paus ntsiab lus: cov khoom muab qhov muaj peev xwm; tus so yog nyob ntawm peb mus thawb cov ciam teb.
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