1. Lub zog tensile ntawm ntshiab titanium yog 265-353MPa, lub dav titanium alloy yog 686-1176MPa, thiab qhov siab tshaj plaws tam sim no tuaj yeem ncav cuag 1764MPa. Titanium alloys yog piv rau lub zog rau ntau cov hlau, tab sis lub zog tshwj xeeb ntawm cov hlau tsis tshua muaj qis dua cov titanium alloys.
2. Lub zog compressive ntawm titanium thiab titanium alloys tsis qis dua lawv lub zog tensile. Lub compressive thiab tensile yield zog ntawm industrial ntshiab titanium yog kwv yees li sib npaug, thaum lub compressive zog ntawm Ti-6AI-4V thiab Ti-5AI-2.5Sn yog me ntsis siab dua tshaj lub zog tensile.
3. Lub zog shear feem ntau yog 60 feem pua rau 70 feem pua ntawm lub zog tensile. Lub zog yield zog ntawm titanium thiab titanium alloy nplooj ntawv yog kwv yees li 1.2 txog 2.0 npaug ntawm lub zog tensile.
4. Nyob rau hauv ib puag ncig atmospheric cua, lub durability txwv ntawm cov txheej txheem thiab annealed titanium thiab titanium alloys yog 0.5 ~ 0.65 tensile zog. Qhov kev txwv tsis pub dhau ntawm annealed Ti-6AI-4V yog 0.2 npaug ntawm lub zog tensile thaum raug rau 10 lab kev xeem qaug zog hauv lub xeev tsis muaj zog (Kt=3.9 ).
5. Lub hardness ntawm lub siab tshaj plaws purity qib ua tiav kev lag luam ntshiab titanium feem ntau yog tsawg dua 120HB (Brinell hardness), thiab hardness ntawm lwm yam kev lag luam ntshiab titanium yog 200 txog 295HB. Lub hardness ntawm ntshiab titanium castings yog 200-220HB. Tus nqi hardness ntawm titanium alloy nyob rau hauv lub xeev annealed yog 32-38HRC (Rockwell), uas yog sib npaug rau 298-349HB. Lub hardness ntawm as-cam khwb cia Ti-5Al-2.5Sn thiab Ti-6AI-4V yog 320HB, thiab lub hardness ntawm tsawg interstitial impurity Ti{{14 }}Al-4V casting yog 310HB.
6. Lub tensile elastic modulus ntawm industrial ntshiab titanium yog 105-109GPa. Lub tensile elastic modulus ntawm feem ntau titanium alloys nyob rau hauv lub xeev annealed yog 110-120GPa. Lub hnub nyoog-hardened titanium alloy muaj ib tug me ntsis siab dua tensile elastic modulus tshaj nyob rau hauv lub annealed lub xeev, thiab lub compressive elastic modulus yog sib npaug los yog ntau tshaj lub tensile elastic modulus. Qhov tshwj xeeb elastic modulus ntawm titanium alloy yog sib npaug ntawm aluminium alloy, thib ob tsuas yog beryllium, molybdenum, thiab qee cov superalloys.
7. Lub torsional los yog shear modulus ntawm industrial ntshiab titanium yog 46GPa, thiab shear modulus ntawm titanium alloy yog 43-51GPa. Txhawm rau txhim kho lub zog ntawm titanium alloys, nce cov ntsiab lus ntawm interstitials yuav ua rau muaj kev cuam tshuam rau kev cuam tshuam thiab tawg toughness ntawm alloy. Nyob ntawm hom thiab lub xeev ntawm titanium alloys, Charpy notched cuam tshuam lub zog ntawm denatured industrial ntshiab titanium yog 15-54J/㎡, thiab txog 4-10J/㎡ nyob rau hauv lub cam khwb cia lub xeev. Qhov cuam tshuam lub zog ntawm titanium alloy nyob rau hauv lub xeev annealed yog 13-25.8J/㎡, thiab lub xeev laus qis dua me ntsis. Lub Charpy V-notch cuam tshuam lub zog ntawm lub as-cast Ti-5AI-2.5Sn yog 10J/㎡, thiab ntawm Ti-6AI-4V yog { {15}}J/㎡. Qhov qis dua cov pa oxygen ntawm titanium alloys, tus nqi siab dua.
8. Ntau cov titanium alloys muaj siab tawg toughness, los yog muaj peev xwm ntawm titanium alloys los tiv thaiv tawg propagation yog zoo heev. Lub annealed Ti-6AI-4V yog cov khoom siv zoo heev. Thaum qhov ntsuas qhov ntsuas qhov ntsuas Kt=25.4 hli, qhov piv ntawm qhov tsis sib haum ntawm lub zog tensile rau qhov tsis muaj zog tensile yog ntau dua 1.
9. Titanium alloys tuaj yeem tswj tau qee yam khoom ntawm qhov kub thiab txias. General industrial titanium alloys tuaj yeem tswj hwm lawv cov khoom ntawm qhov kub ntawm 540 degree, tab sis tsuas yog siv rau lub sijhawm luv luv, thiab qhov ntsuas kub mus ntev yog 450-480 degree . Titanium alloys siv rau qhov kub txog li 600 degree tau tsim. Raws li cov khoom siv foob pob hluav taws, titanium alloy tuaj yeem siv tau ntev ntawm qhov kub ntawm 540 degree, thiab tseem tuaj yeem siv rau lub sijhawm luv luv ntawm qhov kub ntawm 760 degree.
1 0. Titanium thiab titanium alloys tseem tuaj yeem tswj hwm lawv cov khoom qub qub ntawm qhov kub thiab txias. Raws li qhov kub thiab txias, lub zog ntawm titanium thiab titanium alloys nce tsis tu ncua, thaum lub ductility maj mam deteriorates. Ntau cov annealed titanium alloys kuj muaj txaus ductility thiab tawg toughness ntawm -195.5 degree . Ti-5AI-2.5Sn nrog cov ntsiab lus qis qis tuaj yeem siv tau ntawm -252.7 degree . Qhov piv ntawm nws lub zog tensile rau unnotched tensile zog yog 0.95 rau 1.15 ntawm -25.7 degree .
Cov pa oxygen ua kua, kua hydrogen, thiab kua fluorine yog cov khoom tseem ceeb hauv cov cuaj luaj thiab cov khoom siv hauv chaw. Cov khoom uas tsis muaj qhov kub thiab txias ntawm cov ntaub ntawv siv los ua cov khoom siv hluav taws xob qis thiab cov khoom siv hluav taws xob tsawg yog qhov tseem ceeb heev. Thaum lub microstructure yog equiaxed thiab cov ntsiab lus ntawm interstitial cov ntsiab lus (oxygen, helium, hydrogen, thiab lwm yam) yog tsawg heev, ductility ntawm titanium alloys tseem siab tshaj 5 feem pua. Feem ntau cov titanium alloys tsis zoo ductility ntawm -252.7 degree, thaum Ti-6AI-4V mus txog 12 feem pua elongation.
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