Lub zog tensile ntawm kev sib txawv alpha titanium alloy tita beta stabilizers (MO Kev Lag Luam Alpha Titanium alloys tsuas yog muaj τi-8mo-1V, TI-6VO-1V-2SN-2SN-2SN-3.5ZR-5SN-0.5ZR-0.7NB-0.5ZR-0.7NB-0.5ZR-0.7NB - 0.35 si - 0.06 - C (Imi 834), thiab lwm yam.
Raws li qhov tsis txaus ntawm beta stabilizing ntsiab, alpha titanium alloys muaj ntau dua beta theem hloov pauv kub tshaj li lwm ob chav ntawm alloys. Li no, lub alpha titanium alloy muaj kev txaus siab creep tsis kam thiab ua kom muaj kev sib tw siab rau kev sib tw rau cov cav cav. Piv txwv li, IMI 834 alloy tau ua tiav zoo heev rau lub tshuab compressor disc thiab nraub qaum rau hauv Airbus A330 lub dav hlau, qhov chaw ua haujlwm kub txog li 600 degree. Thiab tseem, vim tias qis dBTT (feem ntau qis dua -150 degree) ntawm alpha theem yog cov khoom siv kub tsawg dua (li kua hydrogen tso impellers) rau lub sijhawm ntev.
In the sedimentary state, there are significant differences in the tensile strength of different L-PBF α titanium alloys, with CP Ti having the lowest ultimate tensile strength (UTS) (about 700 MPa), while Ti-6242S has the highest UTS (>1500 MPA). Qhov tag nrho elongation (el) ntawm feem ntau sedimentary l- pbf titanium alloys kuj zoo ib yam nkaus, feem ntau yog qis dua 10%. Ib qho kev zam yog CP ti, uas nws el ntau dua 20%.
Tom qab annaling nyob rau hauv ntau ntawm 490 - 890 degree, lub zog} perme Hauv kev sib piv, l {{- pbf ti- 6242 tuaj yeem nce lub xeev sedimentary mus rau 1438 MPa los ntawm kev kho mob laus. Nov yog ib ntawm ob peb txoj kev tshawb fawb uas tau ua tiav lub zog ntawm l {13 {} pbf ti-6242 pob txha ua ntej yielding ua ntej yielding). Los ntawm cov txheej txheem kho cua sov kom zoo, suav nrog kev kho cua sov ntau dua, L-PBF titanium alloy tuaj yeem ua tiav lub zog zoo dua thiab kev sib luag. Piv txwv li, tom qab 140 feeb ntawm cyclic kub kev kho ntawm 960 17}}} qib ntawm L-PBL Kev Nyuaj Siab Tus nqi yog ntau dua lossis sib npaug rau 1000 MPA.
Ib qho ntxiv, ob qho tib si nyob rau hauv cov nyiaj thiab tshaj tawm -} pbf titanium almoy ua pov thawj tseem ceeb anisotropy hauv tensile cov khoom. Rau alpha titanium alloys tsim cov kev tsim khoom ntxiv uas yog CP Ti, tam sim no, thiab lawv cov khoom siv me me feem ntau yog nruab nrab.
Thov cov lus hais
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