Titanium Alloy Bar
OT4-1 / Ti-2Al-1.5Mn Titanium alloy pas nrig
loj: 89mm
tensile zog: 540Mpa
Tshwj xeeb elongation ntawm pob txha: 10%
txo qhov chaw: 26%
Khoom Taw qhia
Feem ntau, cov tuav thiab cov pob zeb ua los ntawm titanium thiab titanium alloy yog muab annealed raws li ASTM B348 lossis ASME SB-348. Qib 1, 2, 2H, 3, 4, 5, 6, 7, 7H, 9, 11, 12, 13, 14, 15, 16, 16H, 17, 18, 19, 20, 21, 23, 24, 25, 26, 25 30, 31, 32, 33, 34, 35, 36, 37, thiab 38 yog tag nrho nrog rau hauv cov qauv specification. Cov hlau yuav tsum ua kom tiav ASTM B348's "Table 1 Chemical Requirements" thiab "Table 2 Tensile Requirements."
Titanium Alloy Bar: semifinished khoom seem khoom uas yog txias ua hauj lwm, kub dov, forged, extruded, los yog muaj ib tug ntoo khaub lig seem ntawm tsawg tshaj li 16 nti2 (10323 mm2); Qhov dav ntawm daim duab plaub yuav tsum tsis pub tshaj 10 nti (254 mm) thiab lub thickness yuav tsum tsis pub tshaj 0.1875 nti (4.8 mm). Extruded bar tsuas yog siv tau rau qib 1, 2, 3, thiab 4 ntawm cov titanium tsis siv. Cov qib sib txawv yuav raug tsim los ntawm kev tshem tawm lub voj voog raws li cov neeg yuav khoom thov.
Billet ntawm Titanium thiab Titanium Alloy: ib qho khoom ib nrab-Tiav seem ua los ntawm kev ua haujlwm kub lossis forging ib qho ingot, nrog qhov dav uas tsawg dua tsib npaug ntawm nws cov tuab thiab qhov chaw hla ntawm ntau dua 16 nti2 (10323 mm2).
Ti2Al1.5Mn, yog ib lub siab - lub zog thiab lub teeb yuag khoom uas belongs rau alpha-beta titanium alloy tsev neeg. Nws yog tsim los ntawm titanium (Ti), txhuas (Al), thiab manganese (Mn), nrog rau kwv yees li 2% Ti, 1.5% Al, thiab 0.5% Mn.
Titanium Alloy Bar yog ob-theem alpha-beta alloy, uas txhais tau hais tias nws muaj kev sib xyaw ntawm alpha thiab beta theem hauv nws cov microstructure. Lub alpha theem muab siab zog thiab toughness, thaum lub beta theem muab ductility thiab zoo formability. Qhov kev sib xyaw ua ke ntawm cov khoom no ua rau titanium alloy yog cov khoom siv zoo heev rau ntau yam kev lag luam uas muaj lub zog siab, qhov hnyav, thiab kev tiv thaiv corrosion zoo heev.
Ib qho txiaj ntsig tseem ceeb ntawm titanium bar yog nws lub zog siab - rau- qhov hnyav piv, uas ua rau Ti2Al1.5Mn titanium bar ua cov khoom siv zoo tshaj plaws rau kev siv dav hlau thiab tsheb. Qhov tsawg ntom ntom ntawm titanium tso cai rau kev tsim cov khoom sib sib zog nqus uas tseem muaj zog thiab ua haujlwm ntev. Tsis tas li ntawd, 6al 4v titanium alloy bar muaj kev tiv thaiv zoo heev hauv dej hiav txwv thiab lwm qhov chaw hnyav, uas ua rau Titanium Alloy Bar haum rau kev siv dej hiav txwv thiab ntug dej hiav txwv.
Tshuaj muaj pes tsawg leeg wt% (MAX)
| Fe | C | Si | Mn | N | Ti | Al | Zr | O | H | impurity |
| 0.3 | 0.1 | 0.12 | 0.7-2.0 | 0.05 | 94.33-97.5 | 1.5-2.5 | 0.3 | 0.15 | 0.012 | lwm 0.3 |
Lub cev muaj zog
| Kub | Young modulus , [MPa] | Coefficient ntawm linear expansion (ntau 20o - T) | Termal (kub) coefficient, [Watt / (m· Qib)] | Qhov ntom [kg/m3] | Tshwj xeeb kub (ntau 20o - T) [J/(kg·qib)] | Hluav taws xob tsis kam [Ohm·m] |
| 20 | 1.1 | 9.63 | 4550 | 1010 | ||
| 100 | 8 | 10.47 | ||||
| 200 | 8 | 11.3 | 0.565 | |||
| 300 | 9.1 | 12.14 | 0.628 | |||
| 400 | 9.6 | 14.24 | 0.67 | |||
| 500 | 9.7 | 14.65 | 0.754 | |||
| 600 | 9.8 | 16.32 |
Weldability:
tsis muaj kev txwv: vuam yog ua tiav yam tsis muaj cua sov thiab kev kho cua sov tom qab
txwv weldability: vuam yog ua tau nyob rau hauv cov cua sov mus txog 100-120 qib thiab tom qab cua sov kho
hard weldability: tau txais cov vuam zoo xav tau kev ua haujlwm ntxiv: cua sov txog 200-300 qib; kev kho cua sov ia annealing.
Cov ntaub ntawv thov
Ib daim ntawv thov ntawm titanium bar hauv kev lag luam aerospace yog kev tsim cov khoom siv tsaws rau cov dav hlau. Kev tsaws iav yog ib qho tseem ceeb ntawm lub dav hlau uas yuav tsum tau tiv taus siab loads thiab cuam tshuam thaum lub sij hawm nqa tawm thiab tsaws . 6al 4v titanium alloy bar yog ib qho khoom siv zoo tshaj plaws rau cov ntawv thov no vim nws lub zog siab, tsis tshua muaj siab, thiab zoo heev corrosion kuj.
Ib qho piv txwv ntawm daim ntawv thov no yog kev tsaws iav rau lub dav hlau Boeing 777, uas yog tsim los ntawm titanium alloy. Kev tsaws iav muaj ntau yam, nrog rau lub ntsiab strut, sab strut, thiab luag strut. Cov khoom no yog tsim los ntawm titanium alloy vim nws lub zog siab - mus rau - qhov hnyav piv, uas pab txo qhov hnyav ntawm cov iav tsaws thaum tuav nws lub zog thiab kav ntev.
Ntxiv nrog rau nws lub teeb yuag thiab lub zog siab, Titanium Alloy Bar kuj tseem muaj kev tiv thaiv zoo rau corrosion, uas yog ib qho tseem ceeb rau kev tsaws iav cov khoom uas raug rau qhov hnyav ib puag ncig. Lub peev xwm ntawm titanium alloy los tiv thaiv corrosion nyob rau hauv ib puag ncig dej ntsev ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsaws iav cov khoom hauv marine-raws li kev siv xws li amphibious aircraft.
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