Kev siv titanium alloy

Titanium alloy muaj lub zog siab thiab qhov tsis tshua muaj zog, cov kws kho mob zoo, tawv thiab corrosion tsis zoo heev. Tsis tas li ntawd, titanium alloys muaj cov txheej txheem tsis zoo, kev txiav thiab kev ua haujlwm nyuaj, hauv thermal ua, yooj yim heev rau nqus cov impurities xws li hydrogen, oxygen, nitrogen thiab carbon. Kuj tseem muaj kev puas tsuaj tsis zoo, cov txheej txheem ntau lawm yog complex. Kev lag luam tsim khoom ntawm titanium tau pib hauv xyoo 1948. Qhov kev xav tau ntawm kev tsim kho kev lag luam aviation, kom cov titanium kev lag luam mus rau qhov nruab nrab txhua xyoo kev loj hlob ntawm txog 8% kev loj hlob. Tam sim no, lub ntiaj teb cov khoom tsim tawm txhua xyoo ntawm titanium alloy ua cov ntaub ntawv tau mus txog ntau dua 40, 000 tonnes, titanium alloy qib ze li 30 hom. Feem ntau siv titanium alloy yog Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) thiab muaj ntshiab titanium (TA1, TA2 thiab TA3).
Titanium alloys feem ntau yog siv los ua lub dav hlau lub cav compressor qhov chaw, ua raws li cov khoom siv rau cov foob pob hluav taws, cov cuaj luaj thiab cov dav hlau ceev ceev.Nyob rau hauv nruab nrab -1960s, titanium thiab nws cov alloys tau siv dav hauv kev lag luam siv los ua electrodes. rau kev lag luam electrolysis, condensers rau cov chaw nres tsheb fais fab, cov cua sov rau cov roj av refineries thiab seawater desalination nrog rau cov khoom siv hluav taws xob ib puag ncig. Titanium thiab nws cov alloys tau dhau los ua cov khoom siv corrosion-resistant. Nws kuj tseem siv los tsim cov khoom siv hydrogen cia thiab cov duab nco alloys.
Tuam Tshoj pib tshawb fawb txog titanium thiab titanium alloys hauv xyoo 1956; kev tsim khoom ntawm titanium pib hauv nruab nrab -1960s thiab TB2 alloy tau tsim.

Titanium alloy yog cov khoom siv tseem ceeb tshiab siv hauv kev lag luam aerospace, qhov tshwj xeeb lub ntiajteb txawj nqus, lub zog thiab kev siv kub ntawm aluminium thiab steel, tab sis siab dua lub zog thiab muaj kev tiv thaiv zoo rau seawater corrosion thiab ultra-low-temperature kev ua tau zoo. Xyoo 1950 Tebchaws Asmeskas thawj zaug hauv F-84 fighter-bomber siv los ua lub fuselage tshav kub tiv thaiv, cua tshuab, tus Tsov tus tw cowl, thiab lwm yam uas tsis yog-cov kabmob. 60s pib ntawm titanium alloy qhov chaw los ntawm lub rear fuselage mus rau nruab nrab fuselage, ib feem ntawm tus Tsov tus tw cowl. Kev siv cov titanium alloy txav mus rau nruab nrab fuselage, ib nrab hloov cov qauv hlau los tsim cov khoom tseem ceeb ntawm cov kabmob xws li spacer thav duab, kab teeb, flap slides thiab lwm yam. Kev siv titanium alloy hauv cov tub rog dav hlau tau nce sai, nce mus txog 20% ​​mus rau 25% ntawm qhov hnyav ntawm cov qauv dav hlau. 70's, civil aircraft pib siv titanium alloy nyob rau hauv ntau qhov ntau, xws li Boeing 747 airliner nrog titanium ntau tshaj 3,640 kg. Mach tus lej tsawg dua 2.5 lub dav hlau nrog titanium feem ntau yog los hloov cov hlau kom txo qhov hnyav ntawm cov qauv. Lwm qhov piv txwv, United States SR-71 high-altitude high-speed reconnaissance aircraft (flight Mach 3, flight altitude of 26,212 meters), titanium accounted for 93% of the weight of the structure of the aircraft, hu ua " tag nrho titanium" aircraft. Thaum lub aero-engine thrust-rau-hnyav piv los ntawm 4 ~ 6 mus rau 8 ~ 10, lub siab kub lub qhov hluav taws xob sib txuas los ntawm 200 ~ 300 degree C mus rau 500 ~ 600 degree C, thawj txhuas tsim ntawm low-pressure gas discs. thiab cov hniav yuav tsum tau hloov mus rau titanium alloys, los yog titanium alloys es tsis txhob stainless hlau manufacturing ntawm high-pressure pressurized gas discs thiab hniav, thiaj li yuav txo tau qhov hnyav ntawm cov qauv. 70's, titanium alloys nyob rau hauv aero-engine npaum li cas Feem ntau suav rau 20% mus rau 30% ntawm tag nrho qhov hnyav ntawm cov qauv, feem ntau yog siv rau hauv kev tsim cov khoom siv zog, xws li forged titanium kiv cua, pressurized discs thiab hniav, cam khwb cia titanium pressurized magazines. , intermediary magazines, bearing vaj tse thiab lwm yam. Spacecraft mas siv titanium alloys ntawm lub zog siab, corrosion kuj thiab kub tsis kam los tsim ntau yam ntawm cov hlab ntsha siab, roj cia tso tsheb hlau luam, fasteners, ntsuas pluaj, thav ntawv thiab foob pob ua ntxaij plhaub. Artificial Earth satellites, hli tsaws module, manned spacecraft thiab chaw shuttles kuj siv titanium alloy phaj weldments.