Raws li kev kho deg tshiab thev naus laus zis, kev ua nano tuaj yeem siv rau hauv cov khoom siv saum npoo ntawm titanium thiab titanium alloy qhov chaw, tsuas yog siv cov kev siv xws li physics, thiab chemistry, cov khoom yuav xav tau los tuav txoj haujlwm saum toj kawg nkaus ntawm cov nplej refinement, in- qhov tob kom txog rau thaum nanoscale, hauv paus daws qhov teeb meem ntawm cov khoom nto tiv thaiv kev qaug zog, yog li txhim kho corrosion kuj ntawm titanium thiab titanium alloy nto, Nws tuaj yeem txhim kho qhov hnav tsis kam hauv kev siv tswv yim. Siv txoj kev txhaj tshuaj peening, supersonic particle bombardment txoj kev, cov cuab yeej ua, thiab lub workpiece nto tau ua tiav tag nrho, yog li ntawd titanium thiab titanium alloy nto nplej tau tawg los ntawm kev siv tshuab, qhov tob refinement, thiab qhov chaw ntawm lub zog. Siv high-zog txhaj tshuaj peening nto nanotechnology rau TC4 tuaj yeem xyuas kom meej tias cov nplej loj nyob ze rau 20nm thiab txhim kho qhov qaug zog ntawm cov khoom siv los ntawm kev tsim txiaj ntawm cov txheej tawv tawv uas nws qhov tawv tawv yog siab dua li ntawm cov khoom siv raw. Tom qab TA2 kev kho mob, cov nplej loj ntawm nanosurface yog ze rau 30nm, thiab cov nplej saum npoo tuaj yeem tsim cov menyuam ntxaib deformation uas tuaj yeem txhim kho cov qib hardening ntawm cov khoom. Tshwj xeeb, ntawm 623K, Tuam Tshoj txoj kev kho mob titanium thiab titanium alloy muaj zog dua li cov kev qhia tshwj xeeb ntawm Tebchaws Meskas, uas tam sim no ua rau kev ua haujlwm. Siv cov txheej txheem supersonic particle bombardment, ti-6Al-4V alloy tuaj yeem ua tiav ntawm cov qauv nano-equiaxed, nrog cov nplej loj ntawm 20nm, kom cov alloy nto hardness piv nrog cov khoom siv raw tuaj yeem nce ntau dua ob zaug. Txawm li cas los xij, qhov zoo ntawm nano-processing no tsis tau nthuav dav vim nws pib lig.
Deg diffusion thiab ion implantation
Sib txawv ntawm qhov chaw nano-kho, qhov chaw diffusion thiab ion implantation doped hlau los yog cov ntaub ntawv tsis yog hlau rau hauv titanium alloy matrix los hloov nws qhov chaw muaj pes tsawg leeg thiab txhim kho qhov chaw tiv thaiv ntawm titanium alloy matrix nrog kev pab los ntawm cov txheej txheem hloov. Piv txwv li, qhov chaw ntawm titanium thiab titanium alloy yog permeated los ntawm non-metallic cov ntaub ntawv xws li nitrogen thiab carbon, los yog diffused los ntawm hlau cov ntaub ntawv xws li txhuas thiab molybdenum, thiaj li mus txhim kho lub hnav tsis kam thiab corrosion kuj ntawm titanium alloy matrix. Kev tiv thaiv corrosion ntawm TC4 matrix tuaj yeem txhim kho tau zoo los ntawm kev siv netted cathode glow paug txoj kev los imbue Ta ntawm qhov chaw ntawm TC4 matrix. Cov txheej txheem saum npoo ntawm TC6 tuaj yeem hloov pauv tau zoo heev los ntawm cov khoom siv hmoov embedding txoj kev thiab molybdenum infiltration txheej txheej npaj, thiab lub hardness ntawm TC6 tuaj yeem nce mus rau 1400HV. Tam sim no, nrog kev txhim kho sai ntawm kev tshawb fawb thiab thev naus laus zis, kev tshawb fawb theoretical thiab kev ua haujlwm tob ntawm lub tshuab nqus tsev yog maj mam txhim kho. Raws li lub hauv paus ntawm thawj qhov chaw nkag tshuab, ib qho ion implantation technology tuaj yeem muab tau. Piv txwv li, qhov tawv tawv ntawm TA7 titanium alloy tuaj yeem txhim kho rau 1200HV los ntawm kev siv ion nitriding. Qhov tawv tawv ntawm Ti6AI4V alloy tuaj yeem ncav cuag 935HV los ntawm kev siv arc glow ion yam tsis muaj hydrocarburizing tshuab, thiab nws kuj qhia tau tias muaj zog hnav tsis kam. Ti6Al4V alloy kuj tseem tuaj yeem kho los ntawm cov kua theem ntshav plasma electrolytic carbonitriding tshuab los tsim cov txheej txheej nyuaj tso los ntawm Ti rau saum npoo ntawm cov hlau. Txhim kho lub sijhawm kho ntawm titanium alloy tuaj yeem txhim kho cov tuab ntawm cov txheej tawv tawv thiab hnav tsis kam ntawm titanium alloy.
Nto txheej tshuab
Nyob rau saum npoo ntawm cov khoom siv matrix, cov txheej txheem sib raug yog siv los kho cov txheej txheem sib xyaw nrog cov khoom siv matrix los tsim cov txheej txheem tiv thaiv ntawm lub matrix, uas muaj kev ua tau zoo hauv chemistry, thermal thiab lwm yam. Los ntawm kev tsim txiaj ntawm kev tiv thaiv corrosion thiab kub tsis kam ntawm txheej txheej, tus nqi ntawm cov khoom tuaj yeem txo qis, txhawm rau txhim kho kev ua haujlwm ntawm cov khoom, thiab nws kuj muaj lub neej ua haujlwm ntev hauv kev siv tom ntej. Tam sim no, txheej txheej txheej txheej txheem xws li vapor deposition thiab cladding tuaj yeem txhim kho qhov hnav tsis kam ntawm titanium alloy, thiab tseem muaj zog tiv thaiv corrosion. Organic kev koom ua ke ntawm kev ua kom ntog thiab kev kho hydrogenation tuaj yeem txhim kho qhov zoo ntawm titanium alloy, thiab tuaj yeem zam kev xeb ntawm cov khoom tom qab kev sib cuag nrog cov nag, piv txwv li. Los ntawm kev siv thev naus laus zis thev naus laus zis, TA2 thiab TC11 substrates tau tsim rau hauv TiAIN zaj duab xis txheej, uas tuaj yeem muab cov txheej txheem zaj duab xis nrog cov matrix los tsim cov hlau ua ke ntawm peb lub ntsiab lus, txhim kho ntau yam khoom ntawm substrate.
Yog tias koj xav paub xov xwm ntxiv txog Titanium, thov nyem qhov no.
Tiv tauj peb:zhangjixia@bjygti.com
