Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm titanium alloy?
Qhov zoo:
1. Kev ua haujlwm siab. Qhov ceev ntawm titanium alloy feem ntau yog nyob ib ncig ntawm 4.51 g / cm3, uas tsuas yog 60 feem pua ntawm cov hlau.
2, siab thermal kuj, kev siv kub yog ob peb puas degrees siab tshaj aluminium alloy, nyob rau hauv nruab nrab kub tseem tuaj yeem tswj qhov yuav tsum tau ua, tuaj yeem ua haujlwm ntawm qhov kub ntawm 450 ~ 500 degree rau lub sijhawm ntev, ob hom Titanium alloy hauv Qhov ntau ntawm 150 degree ~ 500 degree tseem muaj lub zog tshwj xeeb, thiab aluminium alloy ntawm lub zog tshwj xeeb ntawm 150 degree C poob qis. Kev ua haujlwm kub ntawm titanium alloy tuaj yeem ncav cuag 500 degree C, thaum lub aluminium alloy qis dua 200 degree C.
3. Zoo corrosion kuj. Titanium alloy ua haujlwm nyob rau hauv huab cua ntub thiab dej hiav txwv ib puag ncig, thiab nws cov corrosion kuj zoo dua li cov hlau tsis muaj steel; Tshwj xeeb muaj zog tiv thaiv pitting corrosion, acid corrosion thiab kev nyuaj siab corrosion cracking; Rau alkali, chloride, chlorine organic khoom, nitric acid, sulfuric acid thiab lwm yam zoo heev corrosion kuj. Tab sis titanium muaj qhov tsis zoo corrosion los txo cov pa oxygen thiab chromium ntsev media.
4. Kev ua haujlwm kub tsis zoo. Titanium alloy tseem tuaj yeem tswj hwm nws cov khoom siv dag zog ntawm qhov qis thiab ultra-tsawg kub. Titanium alloys nrog zoo kub tsis zoo thiab tsis tshua muaj interstitial ntsiab, xws li TA7, muaj peev xwm tuav ib tug tej yam kev kawm ntawm plasticity ntawm -253 degree C. Yog li ntawd, titanium alloy kuj yog ib qho tseem ceeb cov khoom uas tsis muaj kub qauv.
5. Cov tshuaj lom neeg muaj zog, kev ua haujlwm siab ntawm titanium, thiab cov tshuaj tiv thaiv muaj zog nrog O, N, H, CO, CO2, dej vapor, ammonia hauv huab cua.
Lub thermal conductivity ntawm titanium=15.24w/(mK) yog hais txog 1/4 ntawm npib tsib xee, 1/5 ntawm hlau, thiab 1/14 ntawm txhuas. Lub thermal conductivity ntawm ntau yam titanium alloys yog kwv yees li 50 feem pua qis dua li ntawm titanium.
Qhov tsis zoo:
1. Titanium thiab titanium alloys yog tsuas yog txwv los ntawm lawv cov tshuaj tsis zoo reactivity nrog rau lwm cov ntaub ntawv ntawm qhov kub thiab txias. Cov cuab yeej no yuam cov titanium alloys kom sib txawv ntawm cov qauv kev ua kom zoo nkauj, melting, thiab casting txheej txheem, feem ntau ua rau xeb puas.
2. Tus nqi ntawm titanium alloy tau dhau los ua kim heev. Yog li ntawd, lawv tau pib siv feem ntau hauv airframes thiab aircraft, nrog rau hauv kev lag luam high-tech xws li roj thiab tshuaj lom neeg kev lag luam.
