Duplex steel na-ezo aka na ezinụlọ nke igwe anaghị agba nchara nke nwere microstructure abụọ nke nwere ma austenitic (usoro cubic kristal na-adabere na ihu) na ferritic (usoro cubic crystal na-adabere na ahụ).A na-enweta ihe owuwu nke abụọ a site na ngwakọta alloy akọwapụtara nke gụnyere ihe ndị dị ka chromium, nickel, molybdenum, na nitrogen.
Igwe igwe anaghị agba nchara duplex bụ nke usoro UNS S3XXX, ebe “S” na-anọchi anya igwe anaghị agba nchara, ọnụọgụ ahụ na-egosikwa ihe mejupụtara alloy.Igwe microstructure nke abụọ na-enye ngwakọta nke ihe ndị a na-achọsi ike, na-eme ka ígwè duplex dị mma maka ngwa dị iche iche.Ụfọdụ isi atụmatụ nke igwe duplex gụnyere:
1.Corrosion Resistance: Duplex steel na-enye ezigbo nguzogide corrosion, karịsịa na gburugburu ebe siri ike nwere chlorides.Nke a na-eme ka ọ dabara adaba maka nhazi kemịkalụ, mmanụ na gas, na ngwa mmiri.
2.High Strength: N'iji ya tụnyere austenitic igwe anaghị agba nchara, igwe duplex nwere ike dị elu, na-eme ka ọ dị mma maka ngwa ebe a na-achọwanye ike ígwè ọrụ.
3.Good Toughness na Ductility: Ngwongwo Duplex na-emesi ike ike na ductility dị mma, ọbụna na obere okpomọkụ.Ngwakọta akụrụngwa a bara uru na ngwa ebe enwere ike idobe ihe dị iche iche na ibu dị iche iche na okpomọkụ.
4.Stress Corrosion Cracking Resistance: Ngwongwo Duplex na-egosipụta ezigbo nguzogide nrụgide corrosion cracking, ụdị corrosion nke nwere ike ime n'okpuru mmetụta jikọtara nke nrụgide nrụgide na gburugburu ebe obibi.
5.Cost-Effective: Ọ bụ ezie na nchara duplex nwere ike ịdị oke ọnụ karịa igwe anaghị agba nchara austenitic, njirimara arụmọrụ ya na-akwadokarị ọnụ ahịa ya, karịsịa na ngwa ebe nguzogide corrosion na ike dị oke egwu.
Nke nkịtị duplex igwe anaghị agba nchara akara ule gụnyereduplex 2205 (UNS S32205)na duplex 2507 (UNS S32750).A na-eji akara ule ndị a n'ọtụtụ ebe na ụlọ ọrụ dịka nhazi kemịkalụ, nchọpụta mmanụ na gas, n'ụsọ osimiri na injinia mmiri, na pulp na imepụta akwụkwọ.
Oge nzipu: Nov-27-2023