Ho na le mefuta e mehlano ea motheo eats'epe e sa beng le mabali:austenitic, ferritic, martensitic, duplex, le pula e thata.
(1) Litšepe tsa Austenitic ha li na matla a khoheli, 'me litekanyetso tsa tšepe tsa moemeli ke 18% ea chromium e ekelitsoeng le palo e itseng ea nickel e ekelitsoeng ho eketsa khanyetso ea kutu.Li sebelisoa haholo limaraka tsa tšepe.
(2) Ferrite ke makenete, 'me karolo ea chromium ke eona e ka sehloohong, e nang le karolo ea 17%.Sesebelisoa sena se na le khanyetso e ntle ea oxidation.
(3) tšepe e sa hloekang ea Martensitic e boetse e na le matla a khoheli, likahare tsa chromium hangata ke 13%, 'me e na le karolo e loketseng ea carbon, e ka thatafalloang ke ho tima le ho halefa.
(4) Duplex tšepe e sa hloekang e na le sebopeho se tsoakiloeng sa ferrite le austenite, litaba tsa chromium li pakeng tsa 18% le 28%, 'me litaba tsa nickel li pakeng tsa 4.5% le 8%.Li hanyetsana haholo le chloride corrosion.Litholoana tse ntle.
(5)Lintho tse tloaelehileng tsa chromium ka har'a tšepe e sa hloekang ea pula ke 17, 'me ho kenyelletsoa palo e itseng ea nickel, koporo le niobium, e ka thatafatsoang ke pula le botsofali.
Ho ea ka sebopeho sa metallographic, e ka aroloa ka:
(1)Ferritic tšepe e sa hloekang (letoto la 400), chromium tšepe e sa hloekang, e emeloa haholo ke Gr13, G17, Gr27-30;
(2)Austenitic stainless steel (300 series), chromium-nickel stainless steel, haholo-holo e emeloa ke 304, 316, 321, joalo-joalo;
(3)Martensitic stainless steel (200 series), chromium-manganese stainless steel, high carbon content, haholo-holo e emeloa ke 1Gr13, joalo-joalo.
Nako ea poso: Sep-28-2022