Titanium khoom

Lub zog siab: 1.3 npaug ntawm aluminium alloys, 1.6 npaug ntawm magnesium alloys, 3.5 npaug ntawm cov hlau tsis muaj steel, tus yeej ntawm cov khoom siv hlau. Titanium alloy ntom yog feem ntau nyob ib ncig ntawm 4.5g / cm3, tsuas yog 6 0% ntawm cov hlau, lub zog ntawm ntshiab titanium yog ze rau lub zog ntawm cov hlau zoo tib yam, ib co high-strength titanium alloy tshaj lub zog ntawm ntau alloy steel qauv. , yog li lub zog tshwj xeeb ntawm titanium alloys (lub zog / ntom) ntau dua li lwm cov khoom siv hlau, tuaj yeem ua los ntawm chav tsev ntawm lub zog siab, toughness, lub teeb yuag qhov chaw, cov khoom siv, hauv cov khoom siv dav hlau, cov pob txha, tawv nqaij, lub dav hlau cav qauv, pob txha, tawv nqaij, fasteners thiab tsaws iav, thiab lwm yam yog siv titanium alloy. Lub zog thermal muaj zog: kev siv qhov kub thiab txias tshaj li cov aluminium alloy ob peb puas degrees siab dua, nyob rau hauv nruab nrab qhov kub thiab txias tseem tuaj yeem tswj tau qhov yuav tsum tau muaj zog, tuaj yeem nyob rau hauv qhov kub ntawm 450-500 degree C ntawm kev ua haujlwm ntev. Zoo corrosion kuj: tiv taus acid, alkali thiab atmospheric corrosion, tshwj xeeb tshaj yog muaj zog tiv taus pitting thiab kev ntxhov siab corrosion. Titanium alloy nyob rau hauv cov huab cua ntub thiab seawater media ua hauj lwm, lwm yam corrosion kuj zoo dua stainless hlau; pitting, acid corrosion, kev nyuaj siab corrosion kuj yog tshwj xeeb tshaj yog muaj zog, alkali, chloride, chlorine organic khoom, nitric acid, sulfuric acid, thiab lwm yam muaj zoo corrosion kuj, tab sis titanium muaj ib tug txo oxygen thiab chromium ntsev tsis zoo corrosion kuj ntawm nruab nrab. Kev ua tau zoo ntawm qhov kub thiab txias: titanium alloy TA7 nrog cov ntsiab lus qis heev tseem tuaj yeem tuav tau qee yam ntawm plasticity ntawm -253 degree . Titanium alloy nyob rau hauv tsis tshua muaj kub thiab ultra-tsawg kub, tseem muaj peev xwm tswj tau nws txhua yam khoom, tsis tshua muaj kub kev ua tau zoo, lub interstitial ntsiab ntawm cov titanium alloy tsawg heev, xws li TA7, nyob rau hauv -253 degree C kuj muaj peev xwm tswj tau ib tug qee qhov kev kawm ntawm plasticity, yog li ntawd, kev lag luam titanium alloy yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob qis. Kev siv tshuaj lom neeg: cov tshuaj lom neeg ua haujlwm siab ntawm qhov kub thiab txias, yooj yim nrog hydrogen, oxygen thiab lwm yam gaseous impurities hauv huab cua tshuaj tiv thaiv los tsim cov txheej txheem hardened. Titanium cov tshuaj ua haujlwm loj, thiab cov huab cua O, N, H, CO, CO2, dej vapor, ammonia, thiab lwm yam los tsim cov tshuaj tiv thaiv muaj zog. Thaum cov ntsiab lus carbon ntau dua 0.2%, TiC nyuaj yuav raug tsim nyob rau hauv titanium alloys; ntawm qhov kub thiab txias dua, TiN txheej txheej tawv tawv yuav tsim los ntawm kev ua haujlwm nrog N. Saum toj no 600 degree, titanium absorbs oxygen los tsim cov txheej txheem hardened nrog siab hardness; qhov nce hauv cov ntsiab lus hydrogen kuj yuav tsim ib txheej embritled. Qhov tob ntawm txheej txheej tawv thiab tawv tawv uas ua los ntawm cov pa nqus tau tuaj yeem ncav cuag 0. Titanium cov tshuaj affinity kuj loj, yooj yim nrog cov adhesion tshwm sim uas tsim los ntawm kev sib txhuam nto. Thermal conductivity yog me me, elastic kov me me: titanium thermal conductivity λ=15.2W / (M, K) txog 1/4 ntawm npib tsib xee, hlau 5/1, txhuas 1/14, thiab ntau yam titanium alloys dua. titanium coefficient ntawm thermal conductivity ntawm thermal conductivity ntawm titanium alloys txog 50% down, titanium alloys, elastic kov txog 1/2 ntawm cov hlau, yog li nws rigidity tsis zoo, yooj yim deform, tsis haum rau ua ntev nyias rods thiab nyias. -walled qhov chaw, txiav, machining nto ntawm lub rebound tus nqi yog loj, txog Stainless hlau 2-3 lub sij hawm, ua rau khaus kev sib txhuam, adhesion, bonding hnav ntawm lub cuab tam tom qab riam nto.