Ukulimala kweama-magnesium alloysKakhulu kuncike ezintweni ezintathu: izinga lokushisa eliqinile le-alloy eliqinile, usayizi wokusanhlamvu, ngakho-ke, ukufundwa kwe-magnosium alecforment ahlukaniswe kakhulu, ukucosha noma ukuthuthukisa noma ukuthuthukisa amandla okusanhlamvu kwepulasitiki ama-magnosium alloys.
Ngokuvamile, ama-magnesium alloys akhiwa ebangeni lokushisa eliphakeme elingezansi ngaphansi kokushisa komugqa wesigaba esiqinile. Uma izinga lokushisa elibizayo liphansi kakhulu, kungakhiwa imifantu nokuqhekeka, futhi kunzima ukwenza ukucubungula kwepulasitiki. Uma kuqhathaniswa nezici zokuchazwa kwezinga lokushisa egumbini lokushisa, i-deformation yepulasitiki ye-magnesium alloy ekushiseni okuphezulu ayikhulisi nje uhlelo lwe-slip kodwa futhi nesiliphu somngcele wokusanhlamvu. Isiliphu somngcele wokusanhlamvu singanikeza ezinye izinhlelo ezimbili ezisebenzayo ezisebenzayo. Ngokusho kwe-Von Mise Criterion, i-alloy izobhekana nezinguquko eziphakeme zokushisa, okulungele ukwakha. Kutholakala ukuthi i-plastity ye-magnesium alloy inyusa kakhulu lapho izinga lokushisa lingaphezulu kwama-200 ℃, futhi ipulasitiki ikhuphuka ngokwengeziwe lapho amazinga okushisa engaphezulu kuka-225 ℃. Kodwa-ke, lapho izinga lokushisa liphezulu kakhulu, ikakhulukazi ngaphezulu kwama-400 ℃, i-oxidation corrosive kanye nokusanhlamvu okunamabala kulula ukwenzeka.
I-Magnesium Alloy izwakala kakhulu ngezinga lokukhubazeka. I-Magnesium Alloys ikhombisa i-thermoplasticity ephezulu ye-deformation rate, kanye neplastiki ye-magnesium kwehla kakhulu ngokwanda kwezinga lokukhubazeka. Kepha i-alloy ehlukile ne-aluminium nezinye izinto, i-magnesium alloy ingenye yezici ezishisayo ezivuthayo azilungile futhi zisezingeni eliphakeme, ezinye izikhathi zokwakha i-magnesium, amahlandla amaningi azokwakha kancane kancane, kufanele anciphise kancane yonke indawo yokushisa.
Ukuzijwayeza kufakazele ukuthi okusanhlamvu okulinganayo okulingana kungathuthukisa amandla okuguqulwa kwepulasitiki we-magnesium alloy, futhi usayizi wangempela wokusanhlamvu ubuye unqunywe yi-magnesium alloy. Ngakho-ke indlela yokulawula i-miscructure futhi ucwenge okusanhlamvu kungenye yezikhiye zokuthuthukisa imali engenayo ye-alloy.
Isikhathi sePosi: Aug-31-2022