Isigaba se-eta ngu-ai-tungstenInhlanganisela ye-cobalt-carbon ternary eyakhiwe ngokubamba iqhaza kwamanye ama-athomu e-Co ngesikhathi senqubo yokupholisa ngemva kokucwiliswai-carbide enosimende.I-W in Co ehlakaziwe ayikwazi ukwakha i-WC.Lokhu kunikeza ithuba lokwelashwa kwe-cryogenic ukuqhubeka nokugqugquzela ukwakheka kwesigaba se-eta.okungenzeka.
Studies by Reddy et al., Gill et al., Vadivel et al., Seah et al.bonke bakholelwa ukuthi ukwelashwa kwe-cryogenic kubangela ukuna kwezinhlayiya zesigaba se-etai-carbide enosimende.Ukuba khona kwalezi kuhleizinhlayiya ze-carbidekwenza i-matrix iminyene, izinze futhi ibe lukhuni.Ngesikhathi esifanayo, phakathi nenqubo yokwelashwa kwe-cryogenic, izinhlayiya zesigaba se-eta ezimahhadlahhadla futhi eziphazamisekile zahlelwa kabusha zaba yifomu elizinzile D-22.41, 43, 4.51.
Ngamathuluzi e-carbide ashiwo ngenhla, imvula yesigaba se-eta ngemva kokwelashwa kwe-cryogenic ingathuthukisa ubulukhuni bayo nokumelana nokugqoka ngaphandle kokuba nomthelela omkhulu ekuqineni.Ngakho-ke,amathuluzi e-carbide enosimendengemuva kokwelashwa kwe-cryogenic bonisa ukusebenza okungcono kokusika.Ngokuqondene nendlela ye-eta yemvula yesigaba, ezinye izifundo zikholelwa ukuthi zihlobene nokuguqulwa kwe-martensitic okwenzeka ngesikhathi sokupholisa i-cryogenic, okuholela ekwakhekeni kwesigaba esinamaqoqo ama-athomu angu-C njengomnyombo ozungeze amaphutha.
Isikhathi sokuthumela: Mar-06-2024
