Ntau txoj kev kom ua tiav corrosion tsis kam ntawm titanium alloys
Nrog kev nce qib nro ntawm science thiab thev naus laus zis, titanium alloys, tau siv dav hauv aerospace, marine engineering, kho mob thiab lwm daim teb. Txawm li cas los xij, cov corrosion tsis kam ntawm titanium alloys yog ncaj qha cuam tshuam nrog lawv txoj kev pabcuam lub neej thiab kev nyab xeeb. Yog li ntawd, yuav ua li cas kom ntseeg tau corrosion tsis kam ntawm titanium alloys tau dhau los ua cov ncauj lus tshawb fawb tseem ceeb. Tus kws kho mob haiboweier yuav qhia tau ntau txoj hauv kev kom ua tiav corrosion tsis kam ntawm titanium alloys, alloying, kev siv ntawm super-hydrophobic zaj duab xis thiab kev tiv thaiv kev tiv thaiv super-hydrophobic thiab cov kev tiv thaiv kev tiv thaiv super.
Ntuj tsim ntawm nto oxide zaj duab xis
Titanium alloys muaj peev xwm ib txwm muaj dense titanium dioxide (tio₂) oxide zaj duab xis nyob rau hauv huab cua. Qhov yeeb yaj kiab oxide no yog cov tuab heev (feem ntau tsuas yog ob peb tus nanometers tuab), thiab muaj peev xwm thaiv kev sib cuag ntawm cov tshuaj yeeb sab nraud thiab cov titanium matrix. Tsis tas li ntawd, cov yeeb yaj kiab oxide no tseem muaj peev xwm kho tus kheej. Txawm hais tias nws yog ib nrab puas, nws tuaj yeem rov ua tau sai dhau los ntawm oxidation tshuaj tiv thaiv, yog li txuas ntxiv ua si lub luag haujlwm tiv thaiv. Qhov kev kho tus kheej ntawm tus kheej no ua rau titanium alloys kom tswj hwm corrosion zoo thaum siv.
Tshuab Axidation Micro-Arc Oxidation
Micro-arc oxidation (Mao) yog ib txoj kev rau tsim tawm cov tswj kav oxide cov yeeb yaj kiab ntawm titanium alloy. Qhov thev naus laus zis no tsim hluav taws xob rau saum npoo ntawm titanium alloy los ntawm elecro-arc oxidation me ntsis, thiab tom qab ntawd tsim kom tuab olide oxide txheej. Cov txheej txheem ceramic no tsuas yog muaj kev sib raug zoo nrog lub substrate, tab sis kuj muaj cov tshuaj tiv thaiv corrosion zoo thiab hnav tsis kam. Piv txwv li, cov yeeb ncuab zaj duab xis tsim nyob rau saum npoo ntawm tc4 titanium alloy los ntawm anatase thiab rutile tiol o ions thiab txhim kho kev txhim kho lub corrosion tsis kam ntawm titanium alloy.
Kev Hloov Kho Nto thiab Kev Kho Sealing
Txhawm rau txhawm rau txhim kho lub corrosion tsis kam ntawm micro-arc oxidation zaj duab xis, cov kws tshawb nrhiav feem ntau siv nrog lwm cov kev kho mob saum npoo. Sealing kev kho yuav muab cov micropores hauv cov micro-arc oxidation zaj duab xis thiab txo kev sib cuag ntawm lub nruab nrab ntawm lub ntsej muag thiab lub substrate. Piv txwv li, pleev qhov saum npoo ntawm titanium alloy tom qab cov ntaub ntawv me me (xws li postsetrothoxs, ots) rau kev hloov pauv ntawm cov khoom nplaum superhesion thiab nkag rau ntawm cov xov xwm corrosive rau saum npoo. Tsis tas li ntawd, los ntawm kev sib txuas ua ke micro-arc oxidation nrog ydrotalcite zaj duab xis yog lawm
Sib ntxaws
Cov corrosion tsis kam ntawm titanium alloys tuaj yeem txhim kho los ntawm kev ntxiv cov ntsiab lus alloying. Piv txwv li, ntxiv cov kab cim tseg ntawm tantalum (Ta) tuaj yeem txhim kho cov peev txheej ntawm Ta23 titanium alloy, nce tus kheej txoj kev muaj peev xwm thiab txo tus kheej-corrosion tam sim no ceev. Tsis tas li ntawd, kev sib ntxiv ntawm cov ntsiab lus nruab nrab xws li zirmonium (zr) kuj tseem tuaj yeem cuam tshuam qhov kev loj hlob ntxiv los ntawm kev tsim cov tuab ntawm zaj duab xis. Microalloying Technology tseem tuaj yeem tswj hwm theem hloov pauv ntawm titanium alloys, lis kev ua kom zoo rau cov khoom siv ntawm lub microrizale thiab txhim kho nws txoj kev ua tau zoo.
Kev thov ntawm superhydrophobic zaj duab xis
Kev tsim kho cov zaj duab xis superhydrophobic nyob rau saum npoo ntawm titanium alloy yog qhov zoo corrosion corrosion zoo. Lub zog superhydrophobic muaj lub zog qis heev, uas tuaj yeem txo qis kev tiv tauj ntawm dej-solubble corrosive media thiab lub substrate corrosive thiab substrate, yog li txo corrosion. Piv txwv li, cov zaj duab xis superhydropic tau tsim nyob rau saum npoo ntawm titanium alloy los ntawm cov neeg muaj zog hauv lub cev muaj peev xwm txhim kho nws txoj kev daws teeb meem corrosive hauv corrosive cl s daws. No superhydrophobic zaj duab xis tsis tsuas yog muaj zoo corrosion tsis kam, tab sis kuj muaj cov tshuab kev ruaj khov ruaj khov thiab ntxuav tus kheej.
Txoj kev tiv thaiv kev tiv thaiv zoo
Lub corrosion tsis kam ntawm titanium alloy tuaj yeem txhim kho ntxiv los ntawm kev sib txuas ntau hom kev kho kom zoo nkauj. Piv txwv li, cov txheej txheej composating npaj rau saum npoo ntawm titanium alloy los ntawm kev sib txuas nrog cov thev naus laus zis roj ntsha muaj cov khoom lag luam laser tsis kam thiab hnav tsis kam. Ib qho ntxiv, ntau cov txheej txheem kho hauv cov thev naus laus zis xws li sol-gel kev tiv thaiv tshuab thiab hluav taws xob kev tiv thaiv kev tiv thaiv kev tiv thaiv corrosion tsis kam ntawm titanium alloy.
Lub corrosion tsis kam ntawm titanium alloy tau txhim kho. Lub ntuj tsim ntawm saum npoo oxide zaj duab xis, micro-kev kho mob thiab lwm yam kev ua haujlwm ntawm lub tog raj ntawm titanium alloy los tsim ntau qib kev tiv thaiv. Daim ntawv thov ntawm cov thev naus laus zis tau ua cov titanium alloy dav siv nyob rau hauv aerospace, kho mob thiab lwm liaj teb, thiab tau txais kev lav kom muaj zog rau nws lub lag luam ntev ruaj khov.
