Ti-70 Titanium Alloy Phaj Rau Nkoj

Titanium alloy yog ib yam tshiab ntawm cov khoom siv tsim nyob rau hauv xyoo 1950s, uas muaj lub zog tshwj xeeb, qaug zog, thiab nkag tau zoo, nrog rau kev tiv thaiv corrosion hauv dej hiav txwv. Tsis tas li ntawd, nws ua ke cov khoom xws li lub suab kis tau tus mob, tsis yog - cov yam ntxwv sib nqus, tawg tsis kam, thiab machinability, ua rau nws yog cov khoom siv zoo tshaj plaws rau cov qauv nkoj. Nws muaj cov kev siv dav dav thiab kev loj hlob zeem muag hauv nkoj thiab marine engineering thiab hu ua 'marine hlau'.
 

Ti-70 titanium alloy phaj yog nruab nrab-lub zog ze-alpha titanium alloy nrog lub npe muaj pes tsawg leeg Ti-2.5Al-2Zr-1Fe, featuring zoo heev txias txoj kev thiab vuam zog, thiab yog tsuas yog siv nyob rau hauv lub tsim ntawm lub nkoj Cheebtsam.

Qhov sib xyaw ua ke yog Al: 2.8%, Zr: 2.1%, Fe: 1.1%, O: 0.13%, Si Less dua lossis sib npaug rau 0.02%, C Tsawg dua lossis sib npaug 0.01%, N Tsawg dua lossis sib npaug 0.01%, H Tsawg dua lossis sib npaug 0.008%.
 

Lub zog ntawm Ti-70 titanium alloy daim hlau nce ntxiv nrog qhov nce ntawm cov hlau alloying loj feem, thaum lub plasticity hloov me ntsis; Nrog rau qhov nce ntawm dov dhau thiab qhov kawg dov kub, lub zog me ntsis nce, thiab cov yas hloov me ntsis; Nrog rau qhov nce ntawm kev kho cua sov kub, lub zog maj mam txo, thiab cov plasticity maj mam nce. Nyob rau hauv cov txheej txheem optimized tsis, lub slab cua kub kub ntawm lub alloy phaj yog 40℃hauv qab no lub (+ ) / theem transformation kub, qhov kawg dov kub yog 100℃hauv qab ntawm (+ ) / theem transformation kub, thiab cov kev kho cua sov tsoom fwv yog 710℃/ 1h ~ 740℃/ 1h.

Titanium alloys rau cov nkoj tau yooj yim cuam tshuam los ntawm kev siab -ceev ntws dej hiav txwv thiab dej hiav txwv siab, txhais tau tias lawv yuav tsum tiv taus lub zog thiab kev tiv thaiv corrosion nyob rau hauv ntau yam kev ua haujlwm, thaum tseem muaj cov vuam zoo thiab txias - cov khoom tsim. Ti-70 titanium alloy phaj yog tsim los ntawm Ti-2Al-2.5Zr, uas muaj kev tiv thaiv corrosion zoo, weldability, thiab txias- ua haujlwm. Los ntawm kev nce qhov loj ntawm kwv yees li 0.5% ntawm -stabilizing lub ntsiab Al, cov khoom siv ntxiv dag zog rau cov ntsiab lus alloying yog txhim kho; ntxiv txog 1% ntawm -stabilizing lub caij Fe txo qhov yield-rau-tensile piv thiab txhim kho kev ua haujlwm txias; Nyob rau tib lub sijhawm, txo qhov loj ntawm kwv yees li 0.5% ntawm cov khoom nruab nrab Zr txo qis cov nqi hlau. Nws yog ib qho khoom siv zoo tshaj plaws rau lub nkoj hull cov qauv.

Daim ntawv thov ntawm Ti-70 titanium alloy phaj ntawm cov nkoj: siv rau lub siab- cov hulls tiv taus, lub zog hluav taws xob, cov khoom siv hluav taws xob, thiab cov tshuab hluav taws xob, muaj lub zog tshwj xeeb, zoo corrosion kuj, thiab cov khoom tsis sib nqus, ua kom lub nkoj ua tau zoo thiab lub neej ntev.

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