Keywords: TA15 titanium alloy yeeb nkab, forging, extrusion, hla-dov
Paub meej: TA15 titanium alloy kav tau npaj los ntawm forging, extrusion, thiab cross-rolling txheej txheem, thiab qhov sib txawv ntawm cov khoom, qauv, tsos, qhov loj me, thiab cov nqi tsim khoom raug muab piv.
The results show that TA15 titanium alloy pipes with a tensile strength of 900~1130 MPa, elongation (>9%), section shrinkage (>25%), and impact power (>28 J) tuaj yeem npaj tau los ntawm peb cov txheej txheem, thiab qhov zoo ntawm qhov chaw thiab qhov tseeb ntawm cov kav dej npaj los ntawm txoj kev forging yog qhov zoo dua li ntawm extrusion thiab cross-rolling txoj kev. Lub microstructure ntawm TA15 titanium alloy raj npaj los ntawm forging thiab extrusion yog raws li nram no: ntxiv rau Bimorphous qauv, lub microstructures ntawm TA15 titanium alloy raj npaj los ntawm tus ntoo khaub lig dov txoj kev yog coarse weinite qauv.
TA15 titanium alloy yeeb nkab tsim los ntawm forging thiab extrusion muaj cov khoom zoo xws li lub zog, plasticity, thiab kev cuam tshuam toughness, tab sis nws muaj cov nqi ua haujlwm siab thiab tsim nyog rau cov khoom uas muaj kev ua haujlwm siab. Txawm li cas los xij, cov yas ntawm TA15 titanium alloy yeeb nkab npaj los ntawm txoj kev sib tw yob yog qhov tsis zoo, tab sis cov nqi ua haujlwm yog qhov qis tshaj plaws thiab nws tsim nyog rau cov ntawv thov tsawg. kev tshawb fawb muab kev qhia theoretical rau kev xaiv cov txheej txheem tsim nyog raws li kev xav tau sib txawv.
Lub ntsiab tshuaj muaj pes tsawg leeg ntawm TA15 titanium alloy ingot (feem pua, pawg pawg)
|
Qhov chaw ua piv txwv |
Al |
Mo |
V |
Zr |
O |
Ti |
|
Saum toj |
6.55 |
1.74 |
2.09 |
2.07 |
0.12 |
Nyiaj pab |
|
Nruab nrab |
6.64 |
1.70 |
2.12 |
2.14 |
0.11 |
Nyiaj pab |
|
nqes |
6.58 |
1.74 |
2.12 |
2.21 |
0.11 |
Nyiaj pab |
Qhov zoo ntawm TA15 Titanium Alloy Pipes Npaj los ntawm cov txheej txheem sib txawv
(a) Forged yeeb nkab (b) extruded yeeb nkab (c) cross-dov perforated yeeb nkab phab ntsa thickness sib txawv (mm)
|
Technology |
Forging |
Nyem |
Hla txoj kev dov
|
|
Original tub
|
-- |
0.6 |
0.4 |
|
Cov yeeb nkab tom qab machining
|
0.3 |
0.8 |
0.8 |
Axial microstructure ntawm TA15 Titanium Alloy Pipes Npaj los ntawm cov txheej txheem sib txawv
(a) Forging method (b) extrusion method (c) cross rolling method
Tawm thiab ua tus nqi ntawm TA15 Titanium Alloy Pipes Npaj los ntawm cov txheej txheem sib txawv
|
Technology |
Yield / feem pua |
Kub-ua haujlwm nqi
|
Tshuab surcharge
|
|
Forging |
46.2 |
-- |
108 |
|
Nyem |
59.7 |
70 |
80 |
|
Hla txoj kev dov
|
70.0 |
40 |
65 |
