Daim Ntawv Thov Ntawm Titanium-Nickel Alloy Hlau nyob rau hauv Cov iav tsom iav

Titanium-nickel alloy hlau yog ib hom kev cim xeeb hlau. Lub cim xeeb alloys yog cov hlau tshwj xeeb uas tuaj yeem rov qab tau lawv cov duab qub los ntawm cov yas deformation ntawm qee qhov kub thiab txias.

Nws muaj qhov ncab ntawm ntau dua 20%, lub neej qaug zog txog li 1 × 10⁷ cycles, thiab cov yam ntxwv damping kaum npaug siab dua li cov springs. Nws cov corrosion kuj yog superior rau qhov zoo tshaj plaws kev kho mob stainless hlau tam sim no, ua rau nws haum rau ntau yam engineering thiab kev kho mob daim ntawv thov. Nws yog cov khoom siv ua haujlwm zoo heev.
 

Raws li lub npe qhia, Daim Ntawv Thov Ntawm Titanium-Nickel Alloy Hlau nyob rau hauv Cov iav tsom iav yog binary alloy muaj li ntawm titanium thiab npib tsib xee. Nws muaj ob theem sib txawv ntawm cov qauv siv lead ua vim qhov kev hloov pauv ntawm qhov kub thiab txias ntawm txhua yam: theem austenite thiab theem martensite. Theem transformation sequence thaum lub sij hawm txias ntawm titanium-nickel alloy yog niam txiv theem → R theem → martensite theem. R theem yog rhombohedral, thaum austenite tshwm nyob rau ntawm qhov kub siab dua (saum toj no lub austenite pib kub) los yog nyob rau hauv unloaded tej yam kev mob. Austenite yog cubic, tawv, thiab kuj ruaj khov nyob rau hauv cov duab. Lub martensite theem tshwm sim ntawm qhov kub thiab txias los yog nyob rau hauv loading, yog hexagonal, ductile, thim rov qab, tsis ruaj khov, thiab ntau dua deformation.

Daim Ntawv Ceeb Toom Zoo: Cov duab nco yog hais txog qhov tshwm sim uas cov niam txiv theem ntawm qee yam duab, tom qab txias los ntawm saum toj no ntawm Af kub mus rau hauv qab ntawm Mf kub los ua martensite, tuaj yeem deformed ntawm qhov kub thiab txias hauv qab Mf thiab mam li rov qab mus rau qhov qub duab ntawm niam txiv theem thaum cua sov rov qab mus rau saum toj Af kub, nrog rau kev hloov pauv rov qab. Qhov tseeb, qhov zoo ntawm lub cim xeeb yog ib qho thermally induced theem transformation txheej txheem ntawm nickel-titanium alloy.

Superelasticity: Superelasticity yog hais txog qhov tshwm sim uas cov qauv nthuav tawm ntau dua li qhov elastic txwv nyob rau hauv sab nraud quab yuam, thiab cov strain cia li rov qab los thaum unloading. Ntawd yog, nyob rau hauv lub xeev austenite, vim yog siv kev ntxhov siab, kev ntxhov siab -vim kev hloov pauv martensitic tshwm sim, uas ua rau cov khoom siv sib txawv ntawm cov khoom siv sib txawv. Nws txoj kev txwv elastic yog siab dua li cov ntaub ntawv zoo tib yam thiab tsis ua raws li Hooke txoj cai. Piv nrog rau cov duab cim xeeb, superelasticity tsis cuam tshuam nrog cua sov. Hauv cov ntsiab lus, superelasticity yog hais txog qhov xwm txheej uas kev ntxhov siab tsis nce ntxiv nrog kev nce ntxiv hauv qee qhov deformation ntau yam. Superelasticity tuaj yeem muab faib ua linear superelasticity thiab nonlinear superelasticity.

Nrog rau qhov kev thov nce ntxiv rau kev nplij siab thiab ua haujlwm ntev hauv cov looj tsom iav, Daim Ntawv Thov Ntawm Titanium-Nickel Alloy Hlau nyob rau hauv Eyeglass Frames nco tsom iav thav duab tau maj mam tau txais kev nyiam hauv khw. Tshwj xeeb tshaj yog rau cov tsom iav kev ua si, cov menyuam yaus lub tsom iav, thiab cov xwm txheej uas tsom iav xav tau kev hloov kho tsis tu ncua, titanium-nickel alloy nco thav duab tau txais kev pom zoo rau lawv qhov tshwj xeeb zoo.

Titanium-nickel alloy nco iav thav duab yog nrov ntawm cov neeg siv khoom vim lawv lub teeb yuag, ruaj khov, thiab cov yam ntxwv zoo. Hauv kev ua lag luam, muaj ntau lub npe muab titanium-nickel alloy nco tsom iav, xws li Yingfeilaisi, Lanshuweiting, Dikelang, Xiangshihengji, thiab Jiamiliwei.

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