1. Isizukulwane sesibili sepayipi lensimbi engagqwali ye-duplex sinezici zekhabhoni ephansi kakhulu, i-nitrogen ephansi, ukwakheka okujwayelekile kwe-Cr5% Ni0.17%n kanye nokuqukethwe kwe-nitrogen okuphezulu okungu-2205 kunesizukulwane sokuqala sepayipi lensimbi engagqwali ye-duplex, okuthuthukisa ukumelana nokugqwala kokucindezeleka kanye nokumelana nemigodi yemidiya ene-acidic ene-chloride ion ephezulu. I-nitrogen iyinto eqinile yokwakha i-austenite. Ukwengezwa kwe-nitrogen ensimbi engagqwali ye-duplex akugcini nje ngokuthuthukisa ukuqina kwensimbi ngaphandle komonakalo osobala, kodwa futhi kuthuthukisa amandla ensimbi, futhi kuvimbela ukuna kwemvula kanye nokubambezeleka kwama-carbide.
2. Umsebenzi wenhlangano: Ku-greenhouse, i-austenite ne-ferrite ziyingxenye yesisombululo esiqinile, esinezici zesakhiwo se-biphase. Sigcina izici zenani elincane lama-ferritic stainless steel conductors, ukumelana nokuqhekeka, ukuqhekeka kanye nokugqwala kwe-chloride stress, ngokuqina okuhle, izinga lokushisa eliphansi lokuqhekeka, ukumelana nokugqwala kwe-intergranular kanye nezakhiwo zemishini kanye nokushintshwa okuhle.
3. Ngaphansi kwezimo ezifanayo zezinga lokucindezela kungasindisa izinto, amandla okukhiqiza kanye nokumelana nokugqwala kokucindezeleka kwepayipi lensimbi engagqwali yensimbi ephindwe kabili cishe kuphindwe kanye kunensimbi engagqwali ye-austenitic, i-coefficient yokwandisa eqondile ingaphansi kwensimbi engagqwali ye-austenitic yesistimu yensimbi engagqwali ye-austenitic, kanti insimbi enekhabhoni ephansi iseduze nayo. Ukwakheka okubandayo akukuhle njengensimbi engagqwali ye-austenitic.
4. Ukushibilika: ipayipi lensimbi engagqwali lensimbi engagqwali elingu-2205 linokushibilika okuhle, ukushibilika kubanda, ukuzwela kokuqhekeka okushisayo kuncane, ngokuvamile akukho ukushibilika ngaphambi kokushibilika, akukho ukwelashwa kokushisa ngemva kokushibilika. Ngenxa yokuthambekela okuncane kwe-ferrite yesigaba esisodwa kanye nokuqukethwe okuphezulu kwe-nitrogen endaweni ethintekile ekushiseni, amandla entambo yokushibilika angalawulwa ngalesi sikhathi lapho izinto zokushibilika zikhethwe ngokufanele, futhi ukusebenza okuphelele kuhle.
5. Ukuqhuma Okushisayo: Ukuzwela kokuqhuma Okushisayo kuphansi kakhulu kunokwensimbi engagqwali ye-austenitic. Lokhu kungenxa yokuthi okuqukethwe yi-nickel akuphakeme, ukungcola okulula ukukwakha i-eutectic encibilika kancane kuphansi, ifilimu yoketshezi enephuzu lokuncibilika eliphansi akulula ukuyikhiqiza, futhi ukukhula okusheshayo kwengozi yokusanhlamvu akukho lapho amazinga okushisa aphezulu.
6. Ukungaqini kwendawo ethintekile ekushiseni: Inkinga enkulu yokushisisa ipayipi lensimbi engagqwali yensimbi ephindwe kabili yindawo ethintekile ekushiseni. Ngenxa yomphumela wokupholisa okusheshayo kwendawo ethintekile ekushiseni esimweni esingalingani somjikelezo wokushisa wokushisisa, i-ferrite epholile kakhulu ihlala igcinwa, okuvame ukwandisa ukuzwela kokugqwala kanye nokuqhekeka okubangelwa yi-hydrogen.
7. I-Welding metallurgy: Ngesikhathi senqubo yokushisela yensimbi engagqwali ephindwe kabili, ngaphansi kwesenzo sokujikeleza kokushisa, isakhiwo esincane kanye nendawo ethintekile ekushiseni kwensimbi yokushisela kuye kwashintsha uchungechunge lwezinguquko. Emazingeni okushisa aphezulu, isakhiwo esincane sensimbi engagqwali ephindwe kabili sibangelwa yi-ferrite kanye ne-austenite ngesikhathi sokupholisa. Inani lemvula ye-austenite lithintwa yizici eziningi.
Isikhathi sokuthunyelwe: Juni-26-2023