Super Bakin Karfe da na'ura na tushen nickel nau'ikan bakin karfe ne na musamman.Na farko, ya bambanta chemically daga talakawa bakin karfe.Yana nufin babban gami da bakin karfe dauke da babban nickel, high chromium, high molybdenum.
Dangane da sifofin microstructure na kayan bakin karfe, super bakin karfe ya kasu kashi zuwa super ferritic bakin karfe, super austenitic bakin karfe, super martensitic bakin karfe, super duplex bakin karfe da sauran iri.
Super austenitic bakin karfe
A kan talakawa austenitic bakin karfe, ta hanyar inganta tsarki na gami, da kara yawan amfani abubuwa, rage abun ciki na C, hana hazo na Cr23C6 lalacewa ta hanyar intergranular lalata, samu mai kyau inji Properties, tsari Properties da gida lalata juriya. , maye gurbin Ti barga bakin karfe.
Super ferritic bakin karfe
Yana gaji halaye na high ƙarfi, mai kyau hadawan abu da iskar shaka juriya da kyau kwarai danniya lalata juriya na talakawa ferritic bakin karfe.A lokaci guda, yana inganta iyakoki na bakin karfe ferrite a cikin yanayin waldawa na jujjuyawar canji, mai kula da lalatawar intergranular da ƙarancin ƙarfi.Ultra-ferritic bakin karfe tare da babban Cr, Mo da ultra low C da N za a iya samu ta hanyar tace fasaha, rage abun ciki na C da N, ƙara stabilizing da waldi karfe toughening abubuwa.Aikace-aikacen bakin karfe na ferritic a cikin juriya na lalata da juriya na chloride ya shiga sabon mataki.
Super duplex bakin karfe
An kera karfen ne a karshen shekarun 1980.Babban samfuran sune SAF2507, UR52N, Zeron100, da sauransu, waɗanda ke da ƙarancin abun ciki na C, babban abun ciki na Mo da babban abun ciki na N.Matsakaicin lokaci na ferritic a cikin karfe yana lissafin 40% ~ 45%., tare da kyakkyawan juriya na lalata.
Super martensitic bakin karfe
Bakin karfe ne mai taurin gaske tare da babban tauri, ƙarfi da juriya, amma rashin ƙarfi da walƙiya.Bakin karfe na martensitic na yau da kullun ba shi da isasshen ductility, yana da matukar damuwa ga damuwa lokacin da ya lalace, kuma yana da wahala a samar da aikin sanyi.Ta hanyar rage abun ciki na carbon da haɓaka abun ciki na nickel, ana iya samun bakin karfe na super martensitic.A cikin 'yan shekarun nan, kasashe sun zuba jari mai yawa wajen samar da karamin karfen carbon da karancin nitrogen super martensitic karfe, kuma sun samar da wani nau'in karfe na super martensitic don dalilai daban-daban.Super martensitic karfe da aka yadu amfani da man fetur da iskar gas amfani, ajiya da kuma sufuri kayan aiki, ruwa, sinadaran masana'antu, high zafin jiki na ɓangaren litattafan almara samar da kayan aiki da sauran filayen.
Bakin karfe mai aiki
Tare da canjin buƙatun kasuwa, nau'ikan bakin karfe tare da amfani na musamman da ayyuka na musamman suna ci gaba da fitowa.Kamar sabon likita nickel free austenitic bakin karfe abu ne yafi Cr-Ni austenitic bakin karfe, yana da kyau biocompatibility, dauke da Ni 13% ~ 15%.Nickel wani nau'i ne na abin da ke da hankali, wanda shine teratogenic da carcinogenic ga kwayoyin halitta.Tsawaita amfani da bakin karfe mai dauke da nickel da aka dasa a hankali yana lalata da sakin Ni ions.Lokacin da Ni ions aka wadatar a cikin kyallen takarda kusa da dasawa, ana iya haifar da sakamako masu guba kuma munanan halayen kamar lalata tantanin halitta da kumburi na iya faruwa.Cr-Mn-N likitancin nickel-free austenitic bakin karfe da Cibiyar Nazarin Ƙarfe ta haɓaka, Cibiyar Nazarin Kimiyya ta kasar Sin an gwada ta don dacewa da kwayoyin halitta, kuma aikinsa ya fi na Cr-Ni austenitic bakin karfe a amfani da asibiti.Wani misali shine bakin karfe na rigakafi.Tare da inganta yanayin rayuwar mutane, mutane suna ƙara mai da hankali ga muhalli da lafiyar su, wanda ke inganta bincike da haɓaka kayan aikin kashe kwayoyin cuta.Tun daga shekara ta 1980, kasashen da suka ci gaba da Japan ke wakilta sun fara nazari da amfani da kayan kashe kwayoyin cuta a cikin kayan gida, kayan abinci, kayan yau da kullun, kayan wanka da sauran fannoni.Nissin Karfe da Kawasaki Karfe sun ƙera bakin karfe na kashe ƙwayoyin cuta mai ɗauke da cu da ag, bi da bi.Copper antibacterial bakin karfe da aka kara a bakin karfe 0.5% ~ 1.0% jan karfe, bayan musamman zafi magani, sabõda haka, bakin karfe daga surface zuwa ciki na uniform.Watsawa ε-Cu precipitates suna taka rawar kashe kwayoyin cuta.Wannan jan karfe mai dauke da bakin karfe na kashe kwayoyin cuta ya dace da kewayon samfura irin su kayan abinci na musamman, da sauran samfuran da ke da manyan buƙatu don sarrafa kaddarorin da kaddarorin ƙwayoyin cuta.
Lokacin aikawa: Fabrairu-16-2023