Kukonzekera kwa Beryllium

Beryllium bronze ndi mtundu wamba wokalamba womwe umalimbitsa aloyi.Njira yochizira kutentha yamphamvu kwambiri ya beryllium bronze ndikusunga kutentha kwa 760 ~ 830 ℃ kwa nthawi yoyenera (osachepera mphindi 60 pa mbale ya 25mm), kotero kuti solute atomic beryllium imasungunuka kwathunthu mu matrix amkuwa. kupanga α gawo la nkhope-centered kiyubiki lattice.Supersaturated olimba njira.Pambuyo pake, kutentha kunasungidwa pa 320-340 ° C kwa 2-3 h kuti amalize ndondomeko ya desolubilization ndi mpweya kuti apange gawo la γ '(CuBe2 metastable phase).Kugwirizana kwa gawoli ndi matrix kumapanga malo opanikizika omwe amalimbitsa matrix.Njira yochizira kutentha kwapamwamba-conductivity beryllium mkuwa ndikusunga kwa nthawi yayitali kutentha kwa 900-950 ° C kuti mutsirize njira yothetsera vutoli, ndikuyisunga pa 450-480 ° C kwa 2-4. maola kukwaniritsa desolubilization ndi mpweya ndondomeko.Popeza cobalt kapena faifi tambala amawonjezeredwa ku aloyi, kubalalitsidwa kulimbikitsa particles zambiri intermetallic mankhwala opangidwa ndi cobalt kapena faifi tambala ndi beryllium.Pofuna kupititsa patsogolo mphamvu ya aloyi, mlingo wina wa kuzizira ntchito nthawi zambiri imachitika pa aloyi pambuyo njira kutentha mankhwala ndi pamaso pa ukalamba kutentha mankhwala, kuti tikwaniritse mabuku kulimbikitsa zotsatira ozizira ntchito kuumitsa ndi zaka kuumitsa. .Digiri yake yozizira yogwira ntchito nthawi zambiri sipitilira 37%.Njira yothetsera kutentha iyenera kuchitidwa ndi wopanga aloyi.Pambuyo wosuta nkhonya yankho kutentha mankhwala ndi ozizira adagulung'undisa n'kupanga m'zigawo, iwo kenaka kudziletsa kutentha kutentha kupeza mkulu-mphamvu masika zinthu.M'zaka zaposachedwa, United States yapanga zingwe zopangira kutentha kwaukalamba zomwe zimamalizidwa ndi opanga mkuwa wa beryllium, ndipo makasitomala amatha kuwakhomerera m'magawo kuti agwiritse ntchito.Pambuyo pa bronze ya beryllium yasinthidwa ndi njira zosiyanasiyana, zilembo ku Ulaya ndi United States za dziko la alloy ndi: Njira yothetsera vutoli (annealed), alloy ali mumkhalidwe wofewa kwambiri, wosavuta kusindikizidwa ndikupangidwa, ndipo amafunikira. kukhala kuzizira kwambiri kugwira ntchito kapena kuchiza mwachindunji kukalamba..H amaimira kulimbikira ntchito (zovuta).Mwachitsanzo, 37% ya digiri ya ntchito yozizira imakhala yolimba kwambiri (H), 21% ya digiri ya ntchito yozizira imakhala yolimba (1/2H), ndipo 11% ya digiri ya ntchito yozizira ndi 1. / 4 hard state (1/4H), wogwiritsa ntchito amatha kusankha yoyenera yofewa komanso yolimba molingana ndi zovuta zokhomerera mawonekedwe a gawolo.T imayimira dziko la chithandizo cha kutentha (mankhwala otentha) omwe akalamba ndi olimbikitsidwa.Ngati njira yolimbikitsira kwathunthu kusinthika ndi ukalamba ikuvomerezedwa, dziko lake limayimiridwa ndi HT.


Nthawi yotumiza: May-21-2022