Basic Physical Properties ntawm Titanium Alloys

Qhov ntom

Ntau yam: 4.40-4.50 g/cm³

Daim ntawv thov: Nyob rau hauv aerospace, tsawg ntom pab txo qhov hnyav ntawm cov qauv ntawm aircraft thiab spacecraft.

 

Elastic Modulus

Ntau yam: 110-120 GPa

Daim ntawv thov: Siv nyob rau hauv daim ntawv thov yuav tsum tau elastic teb, xws li springs thiab structural Cheebtsam, qhov twg ib tug nruab nrab elastic modulus muab zoo kev nyuaj siab-strain teb.

 

Yield Strength thiab Tensile Strength

Ntau yam: Yield zog 380-1100 MPa, Tensile zog 900-1400 MPa

Daim ntawv thov: Cov yam ntxwv ntawm lub zog siab ua rau cov titanium alloys haum rau cov khoom siv siab-load-bearing mechanical Cheebtsam, xws li lub cav qhov chaw thiab lub zog muaj zog fasteners.

 

Hardness

Ntau yam: Vickers hardness 200-500 HV

Daim ntawv thov: Siv nyob rau hauv hnav-resistant Cheebtsam xws li bearings thiab gears, qhov chaw siab hardness yog xav tau los tiv thaiv hnav.

 

Toughness

Ntau yam: Charpy impact value 20-100 J/cm²

Daim ntawv thov: Hauv cov ntawv thov uas xav tau cov khoom siv los nqus lub zog, xws li lub zog nqus cov khoom hauv tsheb sib tsoo.

 

Thermal conductivity

Ntau yam: 6-22 W/m·K

Daim ntawv thov: Siv nyob rau hauv cov khoom uas yuav tsum tau tswj cov cua sov hloov mus, xws li cov dab dej kub hauv cov khoom siv hluav taws xob.

 

Coefficient ntawm Thermal Expansion

Ntau yam: 8-12 × 10⁻⁶ K⁻¹

Daim ntawv thov: Tsawg thermal expansion coefficient pab tswj qhov seem stability hauv precision instruments thiab pab kiag li lawm.

 

Melting Point

Ntau yam: Ntshiab titanium nyob ib ncig ntawm 1668 degree

Daim ntawv thov: Siv nyob rau hauv cov khoom uas yuav tsum tau ua kom kub kub los yog kev ua haujlwm, xws li cov khoom cua sov hauv qee qhov cub.

 

Tshwj xeeb kub muaj peev xwm

Ntau yam: 520-700 J/kg·K

Daim ntawv thov: Nyob rau hauv thermal zog cia thiab hloov tshuab, tshwj xeeb tshav kub muaj peev xwm cuam tshuam cov khoom muaj peev xwm nqus thiab tso cua sov.

 

Hluav taws xob conductivity

Ntau yam: Kwv yees li 1.2 × 10⁻⁷ S/m

Daim ntawv thov: Txawm hais tias tsis yog lub tshuab hluav taws xob zoo, titanium alloys yuav tsim nyog rau qee yam kev siv hluav taws xob tiv thaiv hluav taws xob.

 

Fatigue Limit

Ntau yam: Muaj peev xwm tiv taus cyclic stresses txog li 70-80% ntawm tensile zog

Daim ntawv thov: Siv nyob rau hauv daim ntawv thov uas yuav tsum tau rov loading thiab unloading, xws li aircraft tis spars thiab automotive ncua kev kawm ntawv systems.

 

Superplasticity

Ntau yam: Raws li cov xwm txheej tshwj xeeb, tuaj yeem ua tiav qhov ductility siab heev

Daim ntawv thov: Siv nyob rau hauv daim ntawv thov uas yuav tsum tau complex forming, xws li netshaping ntawm aerospace Cheebtsam.

 

Titanium alloys, nrog lawv lub teeb yuag, siab zog, thiab zoo heev corrosion kuj, tau dhau los ua cov khoom ntawm kev xaiv rau ntau yam high-end daim ntaub ntawv, los ntawm aerospace Cheebtsam mus rau chemical ua khoom. Raws li kev siv thev naus laus zis, kev siv ntau yam ntawm titanium alloys yuav tsum tau nthuav dav ntxiv.