Theem eta yog atungsten-cobalt-carbon ternary compound tsim los ntawm kev koom tes ntawm qee co atoms thaum lub sij hawm txias txheej txheem tom qab sintering ntawmcemented carbide.Cov yaj W hauv Co tsis tuaj yeem tsim WC.Qhov no muab lub sijhawm rau kev kho mob cryogenic los txhawb kev tsim cov theem eta.peev xwm.
Kev tshawb fawb los ntawm Reddy et al., Gill et al., Vadivel et al., Seah et al.txhua tus ntseeg tias kev kho cryogenic ua rau nag lossis daus ntawm eta theem hais hauvcemented carbide.Lub xub ntiag ntawm cov nplua nocarbide haisua rau cov khoom siv matrix ntau ntom, ruaj khov thiab tawv.Nyob rau tib lub sijhawm, thaum lub sijhawm kho cov txheej txheem cryogenic, qhov qub ntxhib thiab tsis zoo eta theem hais tau hloov mus rau hauv daim ntawv ruaj khov dua D-22.41, 43, 4.51.
Rau cov cuab yeej cemented carbide tau hais los saum toj no, nag lossis daus ntawm eta theem tom qab kev kho cryogenic tuaj yeem txhim kho nws cov tawv tawv thiab hnav tsis kam yam tsis muaj kev cuam tshuam zoo rau lub zog.Yog li ntawd,cemented carbide cov cuab yeejtom qab kev kho mob cryogenic qhia tau hais tias kev txiav zoo dua.Raws li rau cov txheej txheem ntawm eta theem nag lossis daus, qee cov kev tshawb fawb ntseeg tias nws muaj feem xyuam nrog kev hloov pauv martensitic uas tshwm sim thaum lub sij hawm cryogenic txias, uas ua rau tsim ib theem nrog pawg ntawm C atoms raws li cov tub ntxhais nyob ib ncig ntawm qhov tsis xws luag.
Post lub sij hawm: Mar-06-2024
