Cov ntawv thov tseem ceeb ntawm titanium alloy ntawm cov nkoj muaj xws li lub plhaub resistant, seawater pipeline systems, heat exchangers, coolers, many pipe joints, engine components, lifting devices, and launch devices. Russia thiab Tebchaws Meskas yog lub tebchaws ntxov tshaj plaws los koom nrog kev tshawb fawb ntawm titanium alloys rau nkoj, thiab tsim lawv tus kheej titanium alloy systems rau nkoj. Russia yog nyob rau hauv lub forefront ntawm lub ntiaj teb no nyob rau hauv txoj kev loj hlob thiab tswv yim daim ntawv thov ntawm titanium rau ships, nrog sib txawv zog theem ntawm titanium alloys rau cov nkoj, thiab tau faib cov titanium alloys raws li lawv siv. Tam sim no nws yog tib lub tebchaws uas muaj tag nrho cov titanium submarines. Tuam Tshoj pib tsim cov titanium alloys rau cov nkoj hauv xyoo 1960, thiab tam sim no tau tsim cov titanium alloys rau cov nkoj nrog lub zog ntau ntawm 320-1250 MPa. Cov qib tseem ceeb suav nrog cov hlau tsis muaj zog xws li TA2 thiab Ti31, nruab nrab lub zog alloys xws li Ti70, Ti75, thiab Ti91, thiab siab-lub zog alloys xws li TC4, Ti80, TC11, Ti62A, Ti-B19, thiab Ti-B25. Los ntawm kev pom ntawm hom alloy, lub zog qis thiab nruab nrab lub zog titanium alloys rau cov nkoj feem ntau yog alpha thiab ze ntawm alpha titanium alloys, thaum siab -lub zog titanium alloys rau nkoj yog alpha + beta lossis ze ntawm beta titanium alloys. Tsis tshua muaj zog titanium alloy muaj cov yam ntxwv ntawm high plasticity thiab zoo weldability, ua kom yooj yim rau txheej txheem rau hauv nyias- cov phab ntsa phab ntsa thiab haum rau kev npaj ntawm ntau yam kub exchangers, coolers, thiab lwm yam yeeb nkab ntaub ntawv; Lub zog nruab nrab ntawm titanium alloy muaj kev ua tau zoo sib xws thiab tsim nyog rau cov khoom loj tuab, cov kav dej hiav txwv, thiab lwm yam; Lub zog muaj zog titanium alloy muaj cov yam ntxwv ntawm lub zog siab thiab tsis tshua muaj plasticity, thiab haum rau lub siab resistant shells, high-pressure nkoj, tshwj xeeb nkoj Cheebtsam, thiab lwm yam.
Rau qhov zoo tib yam marine titanium alloy structural Cheebtsam, xav txog qhov sib txuam ntawm cov khoom siv zog thiab toughness, kev nyuaj siab corrosion puas toughness, weldability, thiab lwm yam, lub zog theem ntawm cov khoom yuav tsum tsis txhob siab dhau, thiab paub tab nyob ze alpha titanium alloys yuav tsum tau xaiv ntau li ntau tau. Txawm li cas los xij, rau cov khoom siv nrog lub zog tshwj xeeb, siab -lub zog titanium alloys yuav tsum raug xaiv. Nrog rau kev txhim kho cov khoom siv dej hiav txwv ntawm kev sib sib zog nqus xiav, cov kev xav tau siab dua tau muab tso rau pem hauv ntej rau kev ua haujlwm ntawm titanium cov ntaub ntawv siv hauv cov txheej txheem siab resistant xws li sib sib zog nqus - hiav txwv submersibles thiab qhov chaw sib sib zog nqus chaw nres tsheb, txhawb kev txhim kho siab - lub zog titanium alloys rau kev siv dej hiav txwv. Kev txhim kho lub zog ntawm cov ntaub ntawv tuaj yeem txo tus ntoo khaub lig- ntu tuab ntawm cov khoom thiab qhov hnyav ntawm cov qauv ua haujlwm siab. Txawm li cas los xij, kev ua kom muaj zog feem ntau ua rau cov khoom tawv tawv. Yog li ntawd, kev tuav lub zog siab thaum muaj kev sib zog zoo yog tus yuam sij rau kev siv siab -lub zog titanium alloys rau cov nkoj. Lub zog siab thiab tawv tawv titanium alloys kuj tau dhau los ua kev tshawb fawb hotspot rau ntau lub koom haum tshawb fawb thiab cov tuam txhab titanium hauv xyoo tas los. Txoj kev tshawb nrhiav yog ua los ntawm ob yam. Ntawm qhov tod tes, teb rau cov kev xav tau ceev ntawm cov haujlwm tseem ceeb hauv lub tebchaws, cov qauv tsim yuav xaiv cov ntaub ntawv titanium alloy uas paub tab ntau dua. Los ntawm kev ua kom zoo ntawm cov alloy muaj pes tsawg leeg thiab cov txheej txheem kev npaj cov khoom, qhov kev ua tau zoo ntawm cov ntaub ntawv tuaj yeem tshawb pom, thiab lub zog toughness txuam ntawm cov alloys tuaj yeem txhim kho. Ntau cov kev tshawb fawb tau tsom mus rau optimizing tus tsim ntawm paub tab TC4 thiab Ti80 alloys. Ntawm qhov tod tes, peb kos rau ntawm lub tswv yim kev loj hlob ntawm aerospace siab - lub zog thiab tawv titanium alloys los tsim hom tshiab ntawm siab - lub zog thiab tawv titanium alloys rau marine engineering.
Thaum lub sij hawm 13th Tsib Xyoo Plan lub sij hawm, lub Northwest Nonferrous Metals Research Institute (Northwest Institute) tau tshawb fawb txog alloy muaj pes tsawg leeg optimization tsim raws li Ti80 alloy, aiming los txhim kho lub toughness ntawm alloy thaum tuav nws lub zog siab. Kev cuam tshuam ntawm - cov ntsiab lus ruaj khov, - cov ntsiab lus ruaj khov, thiab cov khoom sib txuas ntawm lub zog thiab tawv ntawm Ti80 alloy tau raug kawm los ntawm kev sib xyaw ua ke ntawm Yu Rui txoj kev xav thiab kev sim. Lub micro mechanism ntawm lub ntsiab cuam tshuam rau alloy lub zog thiab toughness tau tshwm sim los ntawm Yu Rui txoj kev xav suav. Kev tshawb fawb tob tau ua tiav ntawm kev hloov pauv ntawm lub zog thiab tawv ntawm Ti-6Al alloy tom qab ntxiv Mo thiab Nb cov ntsiab lus. Nws tau pom tias Mo thiab Nb cov ntsiab lus tsis tshua muaj txiaj ntsig rau chav tsev kub tensile zog ntawm cov hlau, tab sis tuaj yeem txhim kho qhov cuam tshuam ntawm cov alloy. Qhov no feem ntau yog los ntawm qhov sib ntxiv ntawm - stabilizing cov ntsiab lus hloov cov theem muaj pes tsawg leeg nyob rau hauv microstructure, zoo siab ntau dislocations thiab deformation ntxaib nyob rau hauv kev cuam tshuam load, noj ntau yam load, li no txhim kho cov alloy lub peev xwm los tiv thaiv tawg propagation thiab ua tau zoo dua tej yam kev kawm. Kev cuam tshuam ntawm O cov ntsiab lus ntawm kev cuam tshuam kev ua tau zoo ntawm Ti80 alloy tuav nrog cov qauv sib txawv tau kawm, thiab nws tau pom tias qhov cuam tshuam kev ua tau zoo dua rau cov ntsiab lus O hauv cov hlau. Los ntawm kev kho cov ntsiab lus ntawm txhua lub ntsiab lus thiab kev kho cua sov, nws tau pom tias Ti80 alloy muaj qhov zoo tshaj plaws lub zog toughness txuam hauv lub xeev annealed. Nws cov microstructure yog ib qho qauv bimodal uas tsim los ntawm equiaxed thawj alpha theem thiab beta hloov pauv, raws li qhia hauv daim duab 1.
Daim duab 2 qhia txog cov txiaj ntsig ntawm O cov ntsiab lus ntawm cov txiaj ntsig muaj zog thiab cuam tshuam lub zog ntawm Ti80 alloy nrog dual microstructure. Nws tuaj yeem txiav txim siab tias thaum O cov ntsiab lus yog 0.1% (feem ntau), lub zog ntawm cov hlau tawm mus txog 800 MPa thiab lub zog cuam tshuam tuaj yeem ncav cuag 72 J (tus qauv ntsuas GB / T229-2020). Lub plhaub tiv thaiv lub siab ntawm qhov sib sib zog nqus- hiav txwv submersible yog ib tus neeg sawv cev ntawm siab- lub zog thiab tawv titanium alloy siv hauv cov khoom sib sib zog nqus- hiav txwv, thiab qhov tob tob ntawm submersible yog ze ze rau lub zog tshwj xeeb ntawm cov khoom. Lub Alvin submersible hauv Tebchaws Meskas tau nce nws qhov siab tshaj plaws dhia dej tob los ntawm 1868 txog 4500 meters los ntawm kev hloov lub siab tiv thaiv plhaub khoom los ntawm cov hlau mus rau titanium. Tom qab kev hloov kho ntxiv nrog titanium alloy, nws qhov tob tsim tau nce mus rau 6000 meters. Saib ntawm cov khoom xaiv ntawm lub siab resistant plhaub rau cov dej hiav txwv sib sib zog nqus submersibles nyob rau hauv ntau lub teb chaws, nws yuav pom tau hais tias lub ntsiab qib ntawm titanium cov ntaub ntawv yog Ti-6Al-4V (TC4) thiab Ti-6Al-4VELI (TC4ELI), thiab qhov tob tob ntawm peb tus neeg submersible ua los ntawm ob alloys yog tsis ntau tshaj 7000 meters. Xyoo 2017, Tuam Tshoj tus kheej tsim thiab ua tiav ua tiav TC4ELI alloy manned spherical plhaub thiab Ti80 alloy manned spherical plhaub, thiab ua tiav cov TC4ELI manned spherical plhaub rau ntawm Dej Hiav Txwv Warrior submersible, nrog qhov siab tshaj plaws dhia dej tob tsis tshaj 7000 meters. Qhov siab tshaj plaws dhia dej tob ntawm TC4ELI manned spherical plhaub, uas yog zoo li zoo li melon petals thiab mas los ntawm Russia, yog 7000m. Lub "Striver" 3-tus neeg submersible ua los ntawm Ti62A alloy tuaj yeem ncav cuag qhov tob tob ntawm 10909m Lub alloy yog lub zog siab thiab siab toughness puas siab rau titanium alloy ua ke tsim los ntawm lub koom haum ntawm Hlau ntawm Tuam Tshoj Academy ntawm Sciences thiab Baoji Titanium Industry Co., Ltd.
Jiti Kev Lag Luam Co., Ltd. thiab lwm chav nyob tau ua kev tshawb fawb txog kev ua tau zoo ntawm Ti62A alloy thiab tsim Ti542222 titanium alloy. Lub zog index ntawm titanium alloy no yog 1000MPa, thiab lub zog cuam tshuam yog 40J. Tom qab muab ob npaug rau annealing kho, nws muaj qhov zoo tshaj plaws lub zog plasticity toughness txuam.
Nrog kev txhawb nqa ntawm cov haujlwm tseem ceeb hauv tebchaws, Northwest Institute thiab 725th Research Institute ntawm Tuam Tshoj Shipbuilding Industry Corporation (CSIC) tau ua tiav cov titanium alloys nrog cov txiaj ntsig zoo ntawm 800900 thiab 1000MPa. Lub koom haum Northwest tau tsim nws tus kheej lub siab - lub zog - hom titanium alloy Ti-B25, uas muaj cov yam ntxwv ntawm lub zog siab thiab kev ua haujlwm txias txias, thiab tau siv dav hauv kev sib txuas lus hauv nkoj. Lub koom haum ntawm Hlau ntawm Suav Academy ntawm Sciences tau tsim 1000 thiab 1200MPa siab -lub zog thiab siab toughness titanium alloys rau titanium siv nyob rau hauv dej hiav txwv engineering, thiab tau npaj titanium alloy plhaub rau lub Abyss nyob rau hauv -situ scientific trial chaw nres tsheb thiab lub me me batally lacches.
Nyob rau hauv xyoo tas los no, Tuam Tshoj kuj tau qhia cov cuab yeej tsim khoom siv ntxiv rau hauv kev sib sib zog nqus- cov khoom siv hauv hiav txwv. Tuam Tshoj Shipbuilding Industry Corporation Fenxi Heavy Industry Co., Ltd., koom tes nrog Xi'an Bolite, tau siv laser melting deposition (LMD) technology los sim tsim titanium alloy propellers, hollow shells, thiab lwm yam. Lub koom haum ntawm Hlau ntawm Tuam Tshoj Academy ntawm Sciences, nrog rau Shanghai University of Science thiab Technology, tau tsim ib tug ntau yam ntawm kev sib sib zog nqus. engineering titanium alloy Cheebtsam siv additive manufacturing thiab hmoov kub isostatic nias txheej txheem. Raws li kev tsim lub tswv yim ntawm kev ua kom qis qis qis thiab kev ntxiv dag zog thiab toughening txoj kev siab - lub zog titanium alloys, ib qho kev ntxhib los mos, equiaxed siv lead ua titanium alloy muaj pes tsawg leeg tsim nyog rau cov txheej txheem tsim khoom ntxiv tau tsim, ua kom titanium alloys tsim nrog cov khoom ntxiv kom ua tiav lub zog zoo, kev sib tw yas thiab cov cuab yeej cuab tam.
Thaum lub sij hawm 14th Tsib Xyoo Plan lub sij hawm, Northwest Institute, vam khom rau lub sub project ntawm National Key R & D Program "Kev ua kom zoo thiab kev npaj siab zog thiab tawv Titanium Alloy Composition rau Deep Sea Extreme Service Environment", tsim ultra siab zog titanium alloy Ti1300G rau cov khoom sib sib zog nqus dej hiav txwv thiab siab zog thiab tawv titanium 1G sib sib zog nqus cov khoom siv rau kev sib sib zog nqus dej hiav txwv Ti52. titanium alloys Ti1300 thiab Ti5321. Lub zog tawm ntawm Ti1300G alloy siab resistant plhaub tuaj yeem ncav cuag 1250MPa, elongation Ntau dua lossis sib npaug li 9%, cuam tshuam lub zog Ntau dua lossis sib npaug rau 24J, thiab tawg toughness Ntau dua lossis sib npaug ntawm 60MPa · m1/2; Lub zog tawm los ntawm Ti5321G alloy additive tsim cov khoom tuaj yeem ncav cuag 1050MPa, thiab tus nqi elongation yog ntau dua lossis sib npaug li 9%. Lub plhaub tiv thaiv lub siab tiv thaiv rau qhov sib sib zog nqus- hiav txwv gliders tau npaj siv Ti1300G alloy, thiab sib sib zog nqus- hiav txwv ROV thruster kiv cua thiab kev sim manipulator caj npab tau npaj siv Ti5321G alloy. Tam sim no, lub plhaub tiv thaiv lub siab yog tos rau kev sim tom qab kev teeb tsa, thiab ROV tau ua tiav kev sim dej hiav txwv hauv South Tuam Tshoj Hiav Txwv.
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