Qhov txawv ntawm qib 3, qib 5 titanium

1. Cov neeg sib txawv: Tshuaj lom neeg muaj pes tsawg leeg

Qhov loj tshaj qhov sib txawv nyob hauv lawv cov tshuaj pleev: Qib 3 yog ze rau qib titanium, thaum qib 5 muaj kev ua kom muaj zog los txhim kho lub zog.

Ib feem	Qib 3 Titanium (Astm B265)	Qeb 5 titanium (ti-6al-4V, Astm B265)	Qhov Tseem Ceeb
Titanium (ti)	Ntau dua los yog sib npaug rau 99% (tshuav nyiaj li cas)	~ 88-90% (tshuav nyiaj li cas)	Qib 3 Kev vam khom Ti cov khoom ntshiab; Qib 5 siv alloying los hloov kev ua tau zoo.
Aluminium (AL)	Lw (tsawg dua los yog sib npaug rau 0.10 wt%)	5.5-6.75 WT%	Thawj alpha -} theem theem stabilizer: boosts muaj zog, txhim kho siab- kub ruaj khov.
Vanadium (V)	Lw (tsawg dua los yog sib npaug rau 0.10 wt%)	3.5-4.5 wt%	Thawj Beta -} pasease stabilizer: txhim kho kom muaj zog ntxiv rau kev ntxiv dag zog ntxiv.
Cov pa (O)	Max 0.35 WT%	Max 0.20 wt%	Qib 3 siv oxygen rau kev ntxiv dag zog me; Qib 5 txwv kev oxygen kom tsis txhob ua rau brittleness (alloying ntsiab twb muab lub zog).
Lwm yam tsis zoo	Tsawg (n tsawg dua los yog sib npaug rau 0.05%, C Tsawg dua lossis sib npaug rau 0.08%, H tsawg dua lossis sib npaug rau 0.015%)	Tsawg (n tsawg dua los yog sib npaug rau 0.05%, C Tsawg dua lossis sib npaug rau 0.08%, H tsawg dua lossis sib npaug rau 0.015%)	Qhov kev txwv zoo ib yam rau ob qho tib si kom tiv thaiv kom sawv.

Nyob rau hauv luv luv, qib 3 yog "ntshiab titanium nrog trace impurities," thaum qib 5 yog "ua alloy" nrog aluminium thiab vanadium ua haujlwm hloov kho.

2. Cov Khoom Siv Neeg Kho Tshuab: Lub zog thiab tawv

Cov khoom siv alloy hauv qib 5 xanyob deb dua lub zog thiab zoo dua lub zog - rau {{1} txoj kev nyhavPiv rau qib 3, txawm yog qib 3 khaws cov duction zoo dua.

Cov Cuab Yeej Cuab Yeej (Annealed mob, tshwj tsis yog sau)	Qib 3 Titanium	Qib 5 Titanium (Annealed)	Qeb 5 titanium (tov -}}} nrhiav & laus, sta)	Qhov tseem ceeb sib piv
Tensile lub zog (yam tsawg kawg nkaus)	450 MPa (65 KSI)	{{0 {} mpa mpa (125 ksi)	1100 MPa (160 Ksi)	Qib 5 (STA) yog2.4x muaj zogtshaj qib kawm 3.
Yield zog (yam tsawg kawg nkaus)	380 MPa (55 KSI)	760 MPa (110 KSI)	1030 MPa (150 ksi)	Qib 5 (STA) muaj2.7x ntau dua cov txiaj ntsig lub zog(Tsis kam mus rau deformation puas mus lawm).
Elongation (tsawg kawg, hauv 50 hli)	15%	10%	8%	Qib 3 yog1.5-1.9x Ntau du(ncab ntxiv ua ntej tawg).
Hardness (Brinell, HB)	~135	~300	~350	Qeb 5 yog2.2-2.6x nyuajtshaj qib kawm 3.
Ceev	4.51 g / cm³	4.43 G /M³	4.43 G /M³	Qeb 5 yog tsawg dua ntom ntom, txhim kho nws lub zog - {2} Qhov hnyav} qhov hnyav.

Tseem Ceeb: Qib 5 lub zog yog tag nrho xauv ntawmKev kho cov kev kho thiab kev laus (sta)- Kev kho kom sov tsis yooj yim sua kom qib 3 (ntshiab titanium tsis tuaj yeem siv zog dua los ntawm kev kho cua sov, tsuas yog ua haujlwm txias). Qhov no ua rau qib 5 qhov mus -} rau qhov siab {5} Cov ntawv thov thauj khoom siab.

3. Corrosion Kuj

Ob qib kawm no muaj kev tiv thaiv corrosion zoo tshaj plaws, tab sis lawv cov kev ua tau zoo sib txawv hauv kev sib zog:

Qib 3 (CP Titanium): Tso siab rau ntom ntom, tus kheej -}} kho cov titanium dioxide (tio₂) passive zaj duab xis. Nws zoo nyob rau hauvMe me mus rau nruab nrab corrosive ib puag ncig(Tsis muaj dej nag, tsis muaj dej hiav txwv / tsis muaj zog acids / alkalis) thiab yog qhov tsis txaus siab rau crevice / pitting corrosion nyob rau hauv cov xwm txheej. Txawm li cas los xij, nws yog qhov yooj yim raumuaj zog reducing acids(piv txwv li, concentrated sulfuric acid, hydrochloric acid) thiabhigh - qhov kub thiab txias oxidizing ib puag ncig(saum toj no ~ 300 degree), qhov twg cov zaj duab xis passive tuaj yeem sib tsoo.

Qeb 5 (Ti-6al-4V): Cov txhuas nyob rau hauv nws cov lus sau ntxiv rau cov zaj duab xis tio₂, txhim kho tsis kamoxidizing ib puag ncig(xws li, nitric acid, siab - huab cua kub). Nws tseem ua tau zoo nyob rau hauv seaterater thiab feem ntau muaj tshuaj lom neeg. Txawm li cas los xij, qib 5 yogTsis tshua muaj kev tiv thaiv me ntsis rau cov crevice corrosion nyob rau hauv kub, concentrated chloride daws(piv txwv li, 80℃+ seagater) dua qib 3, vim tias Vanadium qhov kev cuam tshuam me me ntawm zaj duab xis muaj kev ruaj ntseg.

Rau feem ntau cov ntawv thov txheem feem ntau (piv txwv li, cov tubrog nkoj, kev kho mob, kev lag luam dav dav)}}} tiv taus txaus. Qib 3 yog qhov zoo dua rau cov chaw muaj xwm txheej loj uas muaj kev huv; Qib 5 yog xaiv thaum muaj zog yog qhov tseem ceebthiabcorrosion kuj tseem yuav tsum tau ua.

4. Formability thiab Machinability

Muaj peev xwm (shaping rau hauv seem) thiab machinity (txiav / drilling) yog qhov txawv vim tias qib 5 lub zog siab dua:

Qib 3: Nws lub zog qis thiab kev nce qib siab dua ua rau nwsmas muajCov. Nws tuaj yeem txias {- ua haujlwm (khoov tau, rub, tawm mus rau hauv nyias nplooj ntawv / xaim) nrog kev pheej hmoo tsawg thiab kev pheej hmoo ntawm kev tawg. Machinability yogtswj kav- titanium qhov thermal tsawg thermal conductivity (tab sis qib 3 lub qhov muag txo cov cuab yeej muab piv rau cov asloys.

Qib 5: Nws lub zog siab (tshwj xeeb tshaj yog hauv STA mob) ua rau nwstsis muaj peev xwmCov. Cov kev tsim kev txias yuav tsum muaj kev quab yuam dhau los thiab feem ntau ua ntej ua ntej- cua sov (rau ~ 300-500 degree) kom tsis txhob fracturing; Cov duab nyuaj yog feem ntau tsim tawm ntawm casting lossis forging (tsis yog khoov / dov / dov). Machinability yognyuaj: Nws lub siab tawv thiab tsis muaj thermal conductivity ua rau lub cuab tam sim sai sai, piv txwv li cov cuab yeej tshwj xeeb carbide), txias, thiab maj nrawm nrawm. Machining Qeb 5 feem ntau yog 2-3x ntau lub sijhawm-} kev noj thiab kim tshaj qib 3.

info-441-434 info-442-442

info-442-442 info-443-439

5. Kev kho cua sov

Qhov no yog qhov sib txawv ntawm cov ntshiab thiab alloyed titanium:

Qib 3: Raws li CP Titanium qib, nwstsis tuaj yeem txhawb nqa los ntawm kev kho cua sovCov. Annealing (cua sov- 650-700 DEGREEN) yog qhov kev kho mob cua sov uas tsuas yog ua haujlwm sab hauv thiab kev kho kom zoo dua qub, tab sis tsis hloov lub zog. Txias ua haujlwm (piv txwv li, dov, kos duab) yog txoj kev nce qib 3 lub zog (ntawm tus nqi ntawm ductility).

Qib 5: Raws li alma - beta alloy, nwsTeb ruaj ruaj rau kev kho cua sovCov. Cov txheej txheem feem ntau -Kev kho cov kev kho thiab kev laus (sta)-}} koom nrog:

Cua kub rau 920-960℃(alpha - theem theem ntawm cheeb tsam) kom yaj mus rau alpha matrix.

Rapid quenching (water cooling) to trap vanadium in a metastable state (martensitic '-phase).

Kev laus ntawm 480-650℃rau precipition nplua, uniform beta-} pa taws cov zog, uas thaiv kom muaj zog.

Qhov kev kho cua sov cua sov no yog vim li cas qib 5 dominates siab- lub zog thov.

6. Cov ntawv thov raug

Lawv cov khoom divergent ua rau muaj kev siv tshwj xeeb ntau:

Qib 3 daim ntawv thov (ua ntu zus formarity + me ntsis lub zog + corrosion tsis kam)

Marine engineering: Cov dej hiav txwv me me - valve rau cov (piv txwv li cov tsis muaj zog) qhov uas muaj lub zog me me thiab xeb tsis kam.

Kev Lag Luam: Tsawg {{-} Cov kua hlau siab, thiab cov fittings rau tsis {{{{{4 4}}}}}} be} qib acids).

Cov Khoom Siv Kho Mob: Tsis {{0} Ntaus ntawv (piv txwv li cov khoom siv hniav) qhov uas tsim nyog thiab biocompatibility yog tus yuam sij.

Cov Neeg Siv Khoom: Lub teeb hardware (piv txwv, fasteners rau sab nraum zoov iav) qhov twg tus nqi thiab yooj yim ntawm cov fabrication ntau dua li lub zog siab.

Qib 5 daim ntawv thov (ua ntej muaj zog lub zog + lub zog - {} Qhov hnyav} qhov hnyav} qhov hnyav. Piv)

Ib tug tub rog: Txheej txheem txheej txheem ua haujlwm (piv txwv li, lub cav hlau hluav taws xob, cov iav pob zeb, tsaws iav) qhov twg lub cev txuag tau thiab lub zog yog qhov tseem ceeb.

Biomedical: Load {- Cov kabmob cog cov kabmob (piv txwv li cov kabmob, pob txha caj pas, biocompatibility, thiab nkees tsis kam yog qhov tseem ceeb.

Automotive: High {{- Kev ua haujlwm hauv qhov chaw (piv txwv li, cov khoom sib tw, tso pa tawm) los txo qhov hnyav thiab txhim kho durability.

Muaj Machinery: High {{- Cov khoom lag luam hluav taws xob (piv txwv li, hnyav {{{} Lub zog} Lub zog ntawm CP Titanium lub peev xwm.

7. Nqi

Qeb 5 yogTseem tshua kim kimtshaj qib 3-feem 2-3 x tus nqi. Tus nqi kis nyuj stems los ntawm:

Alloying Ntsiab: Aluminium thiab vanadium ntxiv cov khoom siv raw.

Raug kev lag luam: Qeb 5 yuav tsum tau ntau dua cov smelting (los tswj cov kev kho mob alloy) thiab feem ntau kev kho mob / Forging (vs. Yooj yim dov rau qib 3).

Machining nqi: Qib 5 lub tshuab ua tsis zoo ua kom zoo nkauj lub sijhawm thiab cov peev txheej se.

Qhov sib txawv ntawm qib 3, qib 5 titanium