Titanium yeeb nkab yog hom tshiab ntawm cov khoom siv hlau, uas tau hloov tag nrho cov kav hlau thiab cov kav hlau hlau hauv qee yam, yog li dab tsi ua rau nws tuaj yeem hloov cov kav dej ib txwm muaj sai sai?
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Qhov zoo ntawm titanium raj
1. Lub zog tshwj xeeb ntawm titanium raj yog siab. Qhov ceev ntawm titanium alloy yog li 4.5g \ cm3, tsuas yog 60 feem pua ntawm cov hlau. Lub zog ntawm cov titanium ntshiab yog ze rau cov hlau zoo tib yam, thiab qee qhov muaj zog titanium alloys ntau dua li cov hlau alloy steel. Yog li ntawd, lub zog tshwj xeeb (lub zog \ qhov ntom) ntawm titanium alloy yog siab dua li ntawm lwm cov khoom siv hlau, thiab cov khoom siv nrog lub zog siab, zoo rigidity, thiab lub teeb yuag tuaj yeem tsim tau. Tam sim no, titanium alloys yog siv nyob rau hauv aircraft engine qhov chaw, skeletons, tawv, fasteners, tsaws gears, thiab lwm yam.
2. Titanium raj muaj lub zog thermal. Kev khiav hauj lwm ib puag ncig kub yog ob peb puas degrees siab dua li ntawm aluminium alloy, thiab nws tseem tuaj yeem tuav lub zog xav tau ntawm qhov nruab nrab thiab qhov sib txawv. Nws tuaj yeem txhim kho thiab ua haujlwm ntev ntawm qhov kub ntawm 450-500 degree . Kev tshawb fawb tseem muaj lub zog tshwj xeeb heev, thaum lub zog tshwj xeeb ntawm aluminium alloy tuaj yeem txo qhov pom tseeb ntawm 150 degree. Kev ua haujlwm kub ntawm titanium alloy tuaj yeem ncav cuag 500 degree, thaum cov khoom siv aluminium alloy qis dua 200 degree.
3. Titanium raj muaj corrosion kuj zoo. Titanium alloy ua haujlwm nyob rau hauv cov huab cua ntub dej thiab dej hiav txwv nruab nrab, thiab nws cov corrosion kuj zoo dua li cov hlau tsis muaj steel, tshwj xeeb tshaj yog vim nws muaj zog tiv taus pitting corrosion, acid corrosion, thiab kev nyuaj siab corrosion, thiab muaj zoo heev corrosion kuj rau alkali hlau thiab lwm yam khoom. Txawm li cas los xij, titanium muaj qhov tsis zoo corrosion rau cov xov xwm uas txo cov pa oxygen thiab chromium ntsev.
4. Titanium raj muaj qhov ua tau zoo ntawm qhov kub thiab txias. Cov khoom siv ntawm titanium alloys tuaj yeem khaws cia ntawm qhov kub thiab txias. Titanium alloys muaj qhov ua tau zoo ntawm qhov kub thiab txias tsis tshua muaj qhov cuam tshuam, xws li TA7, uas tuaj yeem tswj tau qee qhov kev ua tau zoo ntawm -253 degree . Yog li ntawd, titanium alloy kuj yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob qis.
5. Titanium raj muaj tshuaj lom neeg ua haujlwm siab. Titanium muaj cov tshuaj ua haujlwm siab thiab ua rau muaj zog nrog O, N, H, CO, CO2, dej vapor, thiab ammonia hauv huab cua. Thaum cov ntsiab lus carbon ntau dua 0.2 feem pua, TiC nyuaj yuav ua los ntawm titanium alloy. Thaum qhov kub thiab txias, txheej txheej tawv tawv ntawm TiN kuj tsim los ntawm kev sib cuam tshuam nrog N; Thaum qhov kub siab tshaj 600 degree C, titanium absorbs oxygen los ua ib txheej tawv tawv nrog siab hardness. Raws li cov ntsiab lus nce, ib txheej embrittlement kuj tsim. Lub titanium kuj muaj tshuaj lom neeg affinity thiab yooj yim adheres rau frictional nto.
6. Lub coefficient ntawm thermal conductivity ntawm titanium raj yog me me, thiab cov modulus ntawm elastic khoom yog me me. Lub thermal conductivity ntawm titanium yog me me, thiab elastic dynamic modulus yog me me. Qhov zoo modulus ntawm elasticity ntawm titanium alloy yog li ntawm 1/2 ntawm cov hlau, yog li nws cov rigidity tsis zoo thiab yooj yim rau deform. Nws tsis haum rau ua cov pas nrig thiab nyias-walled qhov chaw. Tus nqi ntawm rebound nyob rau saum npoo ntawm lub lag luam yog loj heev, li ntawm 2 mus rau 3 lub sij hawm ntawm stainless hlau, ua rau muaj kev sib txhuam loj heev, adhesion, thiab kev sib txuas ntawm cov cuab yeej sib txawv.
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