Qhov txawv ntawm Gr 2 thiab Gr 5 Titanium

1. Tub ntxhais hluas txhais lus & Tshuaj lom neeg muaj pes tsawg leeg

The root difference between Grade 2 and Grade 5 lies in their composition-one is pure titanium, while the other is an alloy.

Titanium Qib 2

Hom: Cais raws liCov neeg lag luam ntshiab titanium (cp ti), txhais tau tias nws muaj cov impurities minimal thiab tsis muaj kev cia siab ntxiv alloying ntsiab.

Tshuaj Muaj Tshuaj: Consists of >99% ntshiab titanium (ti). Trace impurities yog nruj me ntsis tswj, suav nrog:

Oxygen (O): Tsawg dua los yog sib npaug rau 0.25% (cov impurity cuam tshuam rau lub zog)

Hlau (FE): tsawg dua lossis sib npaug rau 0.20%

Cov pa roj carbon (c): tsawg dua los yog sib npaug rau 0.08%

Nitrogen (n): tsawg dua lossis sib npaug rau 0.03%

Hydrogen (H): Tsawg dua lossis sib npaug rau 0.015%

Tus yuam sij: Nws cov khoom siv feem ntau yog txiav txim siab los ntawm theem ntawm trace impurities (piv txwv li cov pa roj oxygen me ntsis ntxiv tab sis txo cov qauv ductility).

Titanium Qib 5 (Ti-6al-4V)

Hom: Feem ntauAlpha - beta titanium alloy(ib qho sib luag ntawm alpha thiab beta theem, muab kev sib xyaw ua ke ntawm lub zog thiab cov txheej txheem).

Tshuaj Muaj Tshuaj: Titanium yog lub hauv paus hlau (≈90%), nrog ob qho kev txhob txwm ua alloy los txhim kho kev ua tau zoo:

Aluminium (AL): 5.50-6.75% (ruaj khov rau alpha theem, nce lub zog thiab kub tiv taus).

Vanadium (V): 3.50-4.50% (Txawb cov beta theem, txhim kho kev ua haujlwm thiab lub zog kom txias).

Tus yuam sij: Qhov tseeb piv ntawm AL thiab V tsim cov microstructure uas tsis muaj zog dua lub zog dua li ntshiab titanium, thaum tswj cov kev ua tau zoo.

2. Cov Khoom Siv Neeg Kho Tshuab

Kev ua neeg kho tshuab yog qhov tseem ceeb tshaj plaws ntawm ob qib, ncaj ncaj rau lawv cov ntawv thov haum.

Cov cuab yeej (cov nqi raug, chav sov)	Titanium Qib 2	Titanium Qib 5 (Ti-6AL-4V, annealed)	Qhov tseem ceeb sib txawv
Lub zog tensile(MPa)	345–550	860–930	Qeb 5 yog ~ 2-3x muaj zog; Nws cov ntsiab lus siv tau ntxiv dag zog txhawb nqa theem uas tiv thaiv.
Paib lub zog(MPa)	275–480	790–860	Qib 5 muaj ntau dua cov txiaj ntsig lub zog, lub ntsiab lus nws tuaj yeem tiv taus ntau dua kev ntxhov siab ua ntej deformation tas mus li.
Elongation thaum so (%)	20–30	10–15	Qeb 2 muaj ntau ntau ducile (yooj yim khoov, dov, lossis ncab yam tsis muaj kev tawg); Qeb 5 yog ntau tus nplawm vim nws lub zog siab.
Kev nyuaj(HB)	110–150	300–350	Qib 5 yog qhov nyuaj dua, ua rau nws hnav ntau dua- tsis kam tab sis nyuaj rau lub tshuab.
Ceev(g / cm³)	~4.51	~4.43	Yuav luag txhua tus (ob lub teeb ci, ~ 60% lub ntom ntawm cov hlau).
Thaum Tshav Kub Kub Ua	Pluag (softens saum 300-400 degree; oxidizes sai sai ntawm qhov kub siab)	Zoo heev (tswj lub zog txog 600 degree; alloying cov ntsiab lus txhim kho thermal stability)	Qeb 5 yog tsim nyog rau high {{1},}} cov cav tov), thaum qib 2 yog txwv rau qis- kub siv.

3. Corrosion Kuj

Ob qib nthuav qhia cov khoom lag luam zoo heev vim yog qhov tuab, tus kheej - olich kho titanium oxide (tio₂) zaj duab xis ntawm lawv cov nplaim dej. Txawm li cas los xij, lawv cov kev ua tau txawv nyob rau hauv ib puag ncig hnyav:

Titanium Qib 2

Lub zog: Ua yeeb yam zoo nyob hauvMe me mus rau nruab nrab corrosive ib puag ncig, suav nrog:

Dej nag, dej hiav txwv, thiab huab cua noo (tsis muaj xeb lossis pitting).

Dilute acids (piv txwv li, sulfuric acid<10%) and alkalis (e.g., sodium hydroxide).

Cov tshuaj chloride (tiv taus kev nyuaj siab tiv thaiv kev tawg hauv feem ntau).

Kev txwv: Txom Nyem rau concentrated muaj zog acids (piv txwv li, kub concentrated nitric acid) thiab siab- kub oxidizing ib puag ncig.

Titanium Qib 5 (Ti-6al-4V)

Lub zog: Tswj txoj kev zoo corrosion corrosion zoo nyob rau hauv feem ntau qhov chaw uas yog qib 2 kev ua haujlwm. Txuas ntxiv, nws muaj:

Zoo dua tsis kam musKev ntxhov siab corrosion tawgNyob rau hauv seawater (tseem ceeb rau cov ntawv thov marine).

Txhim kho ruaj khov nyob rau hauv me ntsis siab dua - kub corrosive media (piv txwv li cov kua dej sov lossis dej sov).

Kev txwv: Tiv taus tsawg dua qib 2 txogconcentrated reducing acids (e.g., hydrochloric acid >10%) Vim tias Vanadium tuaj yeem hnov cov enseive ions nyob rau hauv huab.

4. Cov Txheej Txheem

Kev tsim kho (ua kom tiav, machining, vuam) sib txawv me ntsis ntawm lawv cov tshuab khoom siv:

Titanium Qib 2

Muaj meej: Zoo heev. Nws cov kev ua haujlwm siab tso cai ua haujlwm yooj yim (piv txwv li, khoov, dov, kos duab ua cov tshuaj nyias nyias lossis cov xov hlau.

Luam ntawv: Zoo. Qis dua lub hardness thiab lub zog txo cov twj hnav, ua rau nws yooj yim dua rau zeb, tho, lossis tig los piv rau qib 5.

Hwj txwv: Zoo tshaj. Nws tuaj yeem muab welded siv cov qauv txheem (Mig) nrog tsawg kev pheej hmoo ntawm kev tawg, thiab tshaj tawm} Weld lub zog tsis yog qhov tsis txaus ntseeg.

Titanium Qib 5 (Ti-6al-4V)

Muaj meej: Pluag. Siab zog thiab kev ua haujlwm qis ua haujlwm txias; feem ntau tsim kev xav tauKub Ua Haujlwm(cua sov txog 700-900 degree) kom soften cov khoom, nce cov txheej txheem kev nyuaj thiab tus nqi.

Luam ntawv: Pluag. Siab tawv thiab lub zog ua rau cov khoom siv sai; Cov cuab yeej tshwj xeeb (piv txwv li, kev txiav carbide) thiab qeeb qeeb nrawm yog qhov yuav tsum tau, tsav lub tshuab thiab tus nqi.

Hwj txwv: Nruab nrab. Vuam tuaj yeem ua rau muaj kev hloov pauv microstration tsim tawm (piv txwv li, tsim ntawm Bregthale Phases) uas txo lub zog. Tshaj tawm - weld kev kho cua sov (piv txwv li, annealing) feem ntau xav tau los rov ua tau zoo, ntxiv cov kauj ruam ntxiv.

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5. Nqi

Tus nqi sib txawv sib txawv qia los cov ntaub ntawv raw, ua, thiab alloying:

Titanium Qib 2: Tus nqi qis. Nws yuav tsum tsis muaj cov ntsiab lus tseem ceeb (al, v), thiab nws txoj kev yooj yim (yooj yim tsim, machining, vuam) txo cov nuj nqis ntau lawm.

Titanium Qib 5 (Ti-6al-4V): Tus nqi ntau dua. Cov Ntsiab Lus Tseem Ceeb muaj:

Kim alloy cov ntsiab (vanadium yog nqi).

Cov kev ua (kub ua haujlwm, tshwj xeeb machining, post - weld kev kho cua sov).

Kev tswj kom nruj zoo dua (meej tagnrho muaj pes tsawg leeg yog qhov yuav tsum tau ua kom muaj kev ua tau zoo ib yam).

6. Daim Ntawv Thov Kev Cai

Lawv cov khoom tshwj xeeb sau cov xwm txheej sib txawv:

Titanium Qib 2 Cov Ntawv Thov

Tsom mus rau cov xwm txheej nyob qhov twgductility, corrosion tsis kam, thiab tus nqi - ua hauj lwm zooyog ua ntej tshaj rau lub zog heev:

Tshuaj Kev Lag Luam: Tso tsheb hlau luam, kav dej, li qub, thiab twj rau khaws cia / thauj cov tshuaj, lossis tshuaj lom neeg.

Kev Lag Luam Kho Mob: Tsawg {{- Cov phiaj xwm kev nyuaj siab (piv txwv, cov pob txha txhab me me) thiab kev phais cov pob txha (zoo nkauj biocompatibility thiab ductility).

Cov Neeg Siv Khoom: Titanium saib xyuas cov plaub hau / Bands, cov tsom iav tsom iav, thiab tshuab hluav taws xob, kev xeb {} {tsis kam, thiab yooj yim rau cov duab).

Marine Kev Lag Luam: Cov tub rog me me (piv txwv li, nkoj Hull fittings, cov ntaub ntawv kiv cua) raug rau dej hiav txwv.

Titanium Qib 5 (Ti-6al-4V) Kev Siv

Tsim los rau high - kev ua yeeb yam xav taulub zog siab, kub tawm tsam, thiab kav ntev:

Aerospace & Tiv Thaiv: Qhov chaw tshaj tawm loj tshaj plaws - Cov dav hlau tshuab, cov iav siab, thiab lub zog} {qhov hnyav piv txwv thiab kub tsis kam).

Kev Lag Luam Kho Mob: Load {- Cov kabmob cog cov kabmob (piv txwv li cov kabmob sib koom tes ua ke, cov pob txha caj pas) (lub zog txhawb lub cev thiab cov biocompatibility).

Kev Lag Luam Automotive: High {{- Kev ua haujlwm li qub (piv txwv, kev sib tw cav, tso tawm qhov hnyav) (txo qhov hnyav thiab txhim kho roj efficiency).

Roj & Roj Kev Lag Luam: Downhole cov cuab yeej thiab cov kab ke zoo (tiv taus corrosion nyob rau hauv tawv tawv zoo ib puag ncig thiab withstands siab).

Hauv ntej:

Titanium Qib 2Yog tus coo toj, nqi -} Zoo ntshiab rau cov chaw tso tsheb hlau luam me me, cov khoom tso tsheb hlau luam, cov khoom siv rau cov neeg siv khoom).

Titanium Qib 5 (Ti-6al-4V)yog qhov siab - lub zog, cua sov} {ove {2} {{{5} {bearing ayn impant).

Qhov kev xaiv ntawm lawv nyob ntawm kev ntsuas qhov yuav tsum muaj rau lub zog, ductility, tshav kub tawm, corrosion kuj, thiab peev nyiaj.