Qib 5 titanium alloy, universally hu ua Ti-6Al-4V, yog cov titanium alloy siv dav tshaj plaws thoob plaws hauv aerospace, biomedical, marine, thiab industrial sectors. Nws raug cais raws li ib qho + (alpha-}beta) titanium alloy, dual -theem cov khoom siv uas sib xyaw ua ke siab - qhov kub thiab txias ntawm alpha theem nrog ductility thiab forgeability ntawm beta theem. Qhov kev faib tawm no yog los ntawm nws cov tshuaj muaj pes tsawg leeg: kwv yees li 6% txhuas (Al), ib qho alpha-phase stabilizer, thiab 4% vanadium (V), beta-theem stabilizer, nrog titanium (Ti) ua qhov sib npaug. Lub xub ntiag ntawm ob qho tib si stabilizers ua rau lub microstructure uas khaws cov sib xyaw ntawm hexagonal close-packed (HCP) alpha thiab lub cev-centered cubic (BCC) beta theem nyob rau hauv chav tsev kub, endowing lub alloy nrog ib tug tshwj xeeb tshuav nyiaj li cas ntawm txhua yam khoom.
Raws li ib qho + alloy, Qib 5 nthuav tawm tshwj xeeb versatility.
Nws tuaj yeem ua cua sov-kho los ntawm kev kho cov tshuaj thiab kev laus (STA) kom txhim kho nws lub zog tensile, nce mus txog 1,100 MPa, thaum tuav zoo ductility thiab tawg toughness. Tsis zoo li cov ntshiab alpha alloys, uas yog txwv nyob rau hauv lub zog, los yog ntshiab beta alloys, uas yog nyuaj rau txheej txheem, Qib 5 ntaus ib tug zoo tshuav nyiaj li cas, ua rau nws haum rau cov tseem ceeb Cheebtsam uas yuav tsum tau siab zog - rau - luj ratios, qaug zog, thiab corrosion kuj. Nws tseem yog cov weldable heev thiab tuaj yeem tsim rau hauv ntau hom ntawv, suav nrog cov nplooj ntawv, tuav, forgings, thiab cov khoom tsim khoom ntxiv, ntxiv dag zog rau nws cov xwm txheej raws li "workhorse" ntawm titanium alloys.
Hais txog nws lub cev, qhov ceev ntawm Qib 5 titanium alloy yog kwv yees li 4.42 g / cm³ (los yog 4420 kg / m³) ntawm chav tsev kub.
This density is notably lower than that of steel (approximately 7.85 g/cm³) and nickel-based superalloys, yet it delivers comparable or superior strength in many applications. This low density, paired with its high strength, gives Grade 5 an outstanding strength-to-weight ratio-approximately 40% lighter than steel with equivalent mechanical performance. Cov yam ntxwv no yog qhov tseem ceeb hauv kev tsim hluav taws xob aerospace, qhov twg qhov hnyav txo ncaj qha rau kev siv roj thiab muaj peev xwm ua kom muaj zog ntxiv, thiab hauv kev cog qoob loo biomedical, qhov twg cov ntaub ntawv hnyav txo cov neeg mob tsis xis nyob thiab txhim kho biocompatibility.
Qhov ceev ntawm Qib 5 tseem nyob ruaj khov nyob rau hauv cov kev khiav hauj lwm kub, los ntawm cryogenic tej yam kev mob mus txog rau kwv yees li 427℃(800℃F), lub sab sauv txwv rau nws txhim khu kev qha siv. Cov kev hloov me me hauv qhov ntom ntom tuaj yeem tshwm sim vim qhov sib txawv me ntsis ntawm cov tshuaj muaj pes tsawg leeg (xws li cov kab mob xws li oxygen, hlau, lossis carbon) lossis cov txheej txheem tsim khoom, tab sis cov kev sib txawv no tsis tsim nyog rau feem ntau cov ntawv thov kev lag luam. Cov qauv kev qhia tshwj xeeb xws li ASTM B265 thiab AMS 4911 txhais tau tias muaj qhov sib xyaw ua ke thiab lub cev muaj zog rau qib 5, kom ntseeg tau qhov sib xws hauv nws qhov ceev thiab kev ua haujlwm.
Hauv cov ntsiab lus,Qib 5 (Ti-6Al-4V) yog dual-theem + titanium alloy ua kev zoo siab rau nws cov khoom sib npaug thiab kev ua haujlwm. Nrog rau qhov ceev ntawm 4.42 g / cm³, nws muaj lub zog tsis sib xws - rau - qhov hnyav piv, ua rau nws tsis tuaj yeem nyob hauv kev lag luam ua haujlwm siab uas lub teeb yuag, lub zog, thiab kav ntev tsis tuaj yeem sib tham.
