Duplex steel e bua ka lelapa la litšepe tse sa hloekang tse nang le mekhahlelo e 'meli e nang le likarolo tse peli tsa austenitic (sebopeho se bohareng ba sefahleho sa cubic kristale) le mekhahlelo ea ferritic (mohaho o bohareng ba 'mele oa cubic kristale).Sebopeho sena sa mekhahlelo e 'meli se finyelloa ka motsoako o itseng oa motsoako o kenyelletsang likarolo tse kang chromium, nickel, molybdenum le nitrogen.
Litšepe tse atileng haholo tsa duplex ke tsa letoto la UNS S3XXX, moo "S" e emelang stainless, 'me lipalo li bonts'a liqapi tse ikhethileng tsa alloy.The microstructure ea mekhahlelo e 'meli e fana ka motsoako oa thepa e lakatsehang, ho etsa tšepe ea duplex e loketseng mekhoa e fapaneng.Likarolo tse ling tsa bohlokoa tsa tšepe ea duplex li kenyelletsa:
1.Corrosion Resistance: tšepe ea Duplex e fana ka khanyetso e ntle ea kutu, haholo-holo libakeng tse thata tse nang le chloride.Sena se etsa hore e tšoanelehe bakeng sa ts'ebeliso ea lik'hemik'hale, oli le khase, le lits'ebetso tsa metsing.
2.Matla a Phahameng: Ha a bapisoa le litšepe tse sa hloekang tsa austenitic, tšepe ea duplex e na le matla a phahameng, e etsang hore e tšoanelehe bakeng sa lits'ebetso moo ho hlokahalang matla a mochine.
3.Hantle ho Toughness le Ductility: Tšepe ea Duplex e boloka ho tiea ho hotle le ductility, esita le ka mocheso o tlaase.Motsoako ona oa thepa o bohlokoa lits'ebetsong moo thepa e ka bang tlas'a meroalo le mocheso o fapaneng.
4.Stress Corrosion Cracking Resistance: Tšepe ea Duplex e bontša khanyetso e ntle ea khatello ea maikutlo ea ho senya, mofuta oa ho senyeha o ka hlahang tlas'a tšusumetso e kopantsoeng ea khatello ea maikutlo le tikoloho e senyang.
5.Cost-Effective: Le hoja tšepe ea duplex e ka ba theko e boima ho feta e tloaelehileng ea austenitic stainless steel, litšobotsi tsa eona tsa ts'ebetso hangata li lokafatsa litšenyehelo, haholo-holo lits'ebetsong moo ho hanyetsa ha kutu le matla a bohlokoa.
Limaraka tse tloaelehileng tsa tšepe tse sa hloekang tsa duplex li kenyelletsaduplex 2205 (UNS S32205)le duplex 2507 (UNS S32750).Limaraka tsena li sebelisoa haholo liindastering tse kang ts'ebetso ea lik'hemik'hale, tlhahlobo ea oli le khase, boenjiniere ba maoatle le maoatle, le tlhahiso ea pampiri le pampiri.
Nako ea poso: Nov-27-2023