Russia Txhim Kho Lub Sij Hawm Ntawm Titanium Alloy siv hauv Aero-engine Manufacturing

Cov kws tshawb fawb ntawm Perm National University of Science thiab Technology (PNRPU) tau pom ib txoj hauv kev los txhim kho titanium durability ntawm aircraft xyaw, Russia lub koom haum xov xwm TASS tau tshaj tawm.

Ob-theem titanium alloys tau siv dav hauv kev lag luam aviation thiab cav tsim vim lawv lub zog tshwj xeeb thiab kev tiv thaiv corrosion, tab sis kev txhim kho lawv cov kav ntev yog ib qho haujlwm ceev hauv kev txhim kho thiab tsim cov roj turbine cav Cheebtsam, xws li compressor hniav thiab lub log, uas. tuaj yeem dais loj tensile loads thaum ua haujlwm.

Tam sim no, ob-theem sub-microcrystalline titanium alloy tau dav siv thoob ntiaj teb los tsim cov roj turbine cav Cheebtsam ua haujlwm nyob rau hauv lub voj voog siab load thiab qhov kub thiab txias ib puag ncig ntawm 201-351 degree. Txawm li cas los xij, lub zog qaug zog ntawm titanium alloy hauv qhov kev ua haujlwm kub no tsis tau kawm txog tam sim no. Cov kws tshawb fawb ntawm Lub Tsev Kawm Ntawv ntawm Kev Siv Tshuab thiab Tshuab ntawm Pilm University of Technology tau kawm txog cov khoom ntawm Ti-6Al-4V alloy muaj li ntawm txhuas, vanadium thiab titanium thiab ntsuas cov hlau ntawm qhov kub siab tshaj ntawm 351 degree .

Qhov kev sim siv kub dov Ti-6- alloy A l-4V ntawm 20 mm, underwent kev kho cua sov txheem: hardened ntawm 966 degree, annealed ntawm 676 degree rau 4 teev, ua tiav ntawm 651 degree, thiab mechanical tensile xeem ntawm chav tsev kub thiab 351 degree.

Tag nrho cov qauv siv rau kev kuaj qaug zog yog tsim los ntawm kev tig thiab tshuab polishing, thiab cov microstructure ntawm cov khoom raug soj ntsuam nyob rau hauv lub longitudinal cross seem ntawm tus pas nrig siv kis tau tus mob electron microscopy.

Lub Ti-6Al-4V ultrafine alloy tau los ntawm qhov sib npaug ntawm txoj kab uas hla ntawm lub kaum sab xis extrusion pom tias muaj zog tensile ntau dua thiab muaj zog dua ntawm kev ua haujlwm kub ntawm 351 degree piv rau crude crystalline alloy. Lub Pilm University of Technology tau txais 100 lab rubles hauv kev pab nyiaj los ntawm Kev Tsim Kho -2030 pib hauv 2021.