Umehluko omkhulu phakathiinsimbi engagqwali ye-austeniticfuthi insimbi engagqwali ye-ferritic ilele ezakhiweni nasezimpahleni zayo.
I-Austenitic stainless steel yinhlangano ehlala izinzile kuphela emazingeni okushisa angaphezu kuka-727°C.Ibonisa ipulasitiki enhle futhi iyisakhiwo esithandwayo sezinsimbi eziningi ezingaphansi kokucindezela emazingeni okushisa aphakeme.Ukwengeza, insimbi ye-austenitic ayiyona i-magnetic.
I-Ferrite iyisixazululo esiqinile sekhabhoni encibilikisiwe ku-α-iron, ngokuvamile efanekiselwa njenge-F. Ininsimbi engagqwali, "i-ferrite" ibhekisela kusixazululo esiqinile sekhabhoni ku-α-iron, ebonakala ngokuncibilika kwayo okulinganiselwe kwekhabhoni.Ezingeni lokushisa legumbi, ingancibilika kuphela kuze kufike ku-0.0008% yekhabhoni, ifinyelele ekuncibilikeni kwekhabhoni okuphezulu okungu-0.02% ku-727°C, kuyilapho igcina i-cubic lattice egxile emzimbeni.Ngokuvamile imelelwa uphawu F.
Ngakolunye uhlangothi, i-ferriticinsimbi engagqwaliisho insimbi engagqwali ikakhulukazi eyakhiwe isakhiwo se-ferritic ngesikhathi sokusetshenziswa.Iqukethe i-chromium ebangeni lika-11% ukuya ku-30%, elihlanganisa nesakhiwo sekristalu eyi-cubic egxile emzimbeni.Okuqukethwe kwensimbi yensimbi engagqwali akuhlobene nokuthi ihlukaniswa njengensimbi engagqwali ye-ferritic.
Ngenxa yokuqukethwe kwayo kwekhabhoni ephansi, insimbi engagqwali ye-ferritic ibonisa izakhiwo ezifana ne-iron emsulwa, okuhlanganisa ipulasitiki enhle kakhulu kanye nokuqina okunezinga lobude (δ) obungu-45% ukuya ku-50%.Kodwa-ke, amandla ayo kanye nobulukhuni bayo kuphansi uma kuqhathaniswa, namandla aqinile (σb) acishe abe ngu-250 MPa kanye nokuqina kweBrinell (HBS) okungama-80.
Isikhathi sokuthumela: Dec-25-2023