1. Nto txheej tshuab
Qhov saum npoo ntawm cov khoom siv hauv paus yog kho nrog cov txheej txheem sib xws, thiab cov txheej txheem thiab cov khoom siv hauv paus tau sib xyaw ua ke los tsim cov txheej txheem tiv thaiv ntawm cov khoom siv hauv paus, uas muaj cov khoom zoo hauv cov ntsiab lus ntawm chemistry thiab thermal zog. Kev tiv thaiv corrosion thiab kub tsis kam ntawm cov txheej txheej tuaj yeem siv los txhim kho cov khoom lag luam thiab muaj kev pabcuam ntev dua hauv kev siv tom ntej. Tam sim no, txheej txheej txheej txheej txheem xws li vapor deposition thiab cladding yog siv los txhim kho cov hnav tsis kam ntawm titanium alloys thiab kuj muaj cov teebmeem zoo ntawm corrosion kuj. Kev sib koom ua ke ntawm cov organic ua kom lub ntsej muag thiab kev kho hydrogenation tuaj yeem txhim kho qhov zoo ntawm titanium alloys thiab zam cov khoom siv teeb meem los ntawm kev sib cuag nrog cov dej nag, piv txwv li. Siv cov tshuab vapor deposition los ua TA2 thiab TC11 substrates rau hauv TiAIN txheej, txheej zaj duab xis thiab cov substrate tuaj yeem ua ke los tsim cov hlau ua ke ntawm peb lub ntsiab lus, txhim kho ntau yam khoom ntawm lub substrate.
2. Kev kho deg nanotechnology
Raws li cov cuab yeej kho tshiab saum npoo av, kev kho nano tuaj yeem ua tiav qhov kev sib sib zog nqus ntawm cov nplej hauv txheej txheej sab saud ntawm cov khoom siv uas yuav tsum tau ua tiav yam tsis muaj kev hloov pauv ntawm cov khoom nto ntawm titanium thiab titanium alloys, tsuas yog siv lub cev, tshuaj lom neeg. thiab lwm yam txhais tau tias, kom txog rau thaum qib nanometer, hauv paus daws qhov teeb meem ntawm cov khoom nto qaug zog, yog li txhim kho corrosion kuj ntawm titanium thiab titanium alloy nto, thiab tseem tuaj yeem txhim kho qhov hnav tsis kam hauv kev siv tswv yim. Siv cov txheej txheem supersonic particle bombardment, thiab lwm yam., cov cuab yeej ua haujlwm muaj kev cuam tshuam nrog lub ntsej muag ntawm lub workpiece, kom lub ntsej muag ntawm titanium thiab titanium alloys yog mechanically tawg, thiab tom qab sib sib zog nqus refinement, nto yog ntxiv dag zog. Kev siv hluav taws xob tua hluav taws xob 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 nrog kev pab los ntawm cov txheej tawv tawv nrog cov tawv tawv siab dua li cov khoom siv raw. Tom qab ua tiav TA2, cov nplej loj nyob ze rau ntawm nanometer nto txheej ntawm 30nm, thiab cov nplej saum npoo tsim deformation ntxaib uas tuaj yeem txhim kho cov khoom tawv tawv. Tshwj xeeb, kuv lub teb chaws kev ua cov titanium thiab titanium alloys nyob rau hauv 623K tej yam kev mob yog muaj zog tshaj li cov specifications nyob rau hauv lub tebchaws United States, thiab nws yog tam sim no nyob rau hauv lub thawj theem ntawm kev lag luam. Siv cov txheej txheem supersonic particle bombardment los kho Ti-6Al-4V alloy, nano-equiaxed qauv tuaj yeem muab tau rau ntawm qhov chaw nrog cov nplej loj ntawm 20nm, uas tuaj yeem ntau dua ob npaug ntawm qhov hardness ntawm alloy nto piv rau cov khoom siv raw.
3. Nto diffusion thiab ion implantation
Sib txawv ntawm qhov chaw nanotechnology, nto diffusion thiab ion implantation dope hlau los yog cov khoom tsis yog xim hlau rau hauv cov khoom siv titanium alloy matrix los hloov nws cov ntaub so ntswg muaj pes tsawg leeg, thiab txhim kho qhov chaw tiv thaiv ntawm titanium alloy matrix nrog kev pab los ntawm cov txheej txheem hloov kho, los yog siv. aluminium, molybdenum thiab lwm yam ntaub ntawv hlau yog diffused, yog li txhim kho cov hnav tsis kam thiab corrosion kuj ntawm titanium alloy matrix. Siv lub mesh cathode glow paug txoj kev tso nyiaj Ta rau ntawm qhov chaw ntawm TC4 substrate tuaj yeem txhim kho corrosion kuj ntawm TC4 substrate. Cov khoom siv hmoov embedding txoj kev thiab kev npaj ntawm molybdenum infiltrated txheej yuav ua tau zoo hloov lub nto theem qauv ntawm TC6 thiab nce lub hardness ntawm TC6 rau 1400HV. Tam sim no, nrog rau kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis, kev tshawb fawb theoretical thiab siv cov haujlwm ntawm lub tshuab nqus tsev kuj tseem maj mam zuj zus. Txhawm rau txhim kho, ib qho ion implantation thev naus laus zis tuaj yeem muab tau los ntawm cov cuab yeej siv thev naus laus zis thev naus laus zis. Piv txwv li, siv txoj kev ion nitriding, qhov tawv tawv ntawm TA7 titanium alloy tuaj yeem nce mus rau 1200HV. Siv arc glow ion hydrogen-free carburizing thev naus laus zis los kho qhov chaw ntawm Ti6AI4V alloy, nws qhov tawv tawv tuaj yeem ncav cuag 935HV, thiab nws kuj qhia tau tias muaj zog hnav tsis kam. Cov kua plasma electrolytic carbonitriding thev naus laus zis kuj tuaj yeem siv los kho Ti6Al4V alloy los tsim Ti-deposited tawv txheej ntawm cov hlau nplaum. Txhim kho lub sijhawm kho ntawm titanium alloy siv txoj kev no tuaj yeem ua kom cov tuab ntawm cov txheej txheem infiltration thiab txhim kho qhov hnav tsis kam ntawm titanium alloy.
