E rima nga momo taketake okowiri tira:austenitic, ferritic, martensitic, duplex, me te ua whakapakeke.
(1) Ko nga rino kowiri tira Austenitic ehara i te aukume, a ko nga tohu rino tohu he 18% te chromium ka taapirihia me te nui o te nickel hei whakanui ake i te aukati waikura.He nui te whakamahi i nga tohu maitai.
(2) He autō te Ferrite, ko te huānga chromium te mea nui, me te 17%.He pai te ātete o tēnei rauemi ki te hāora.
(3) He aukume hoki te kowiri tira Martensitic, ko te nuinga o te 13% te ihirangi o te chromium, kei roto he wahanga waro e tika ana, ka taea te whakapakeke ma te tinei me te whakamahana.
(4) Duplex kowiri tira he hanganga whakauru o te ferrite me te austenite, ko te ihirangi o te chromium kei waenganui i te 18% me te 28%, ko te ihirangi o te nickel kei waenganui i te 4.5% me te 8%.He tino ātete ki te waikura pūhaumāota.He pai nga hua.
(5)Ko te ihirangi tikanga o te chromium i roto i te rerenga kowiri tira ko te 17, me te taapiri o te nickel, te parahi me te niobium, ka taea te whakapakeke i te ua me te koroheketanga.
E ai ki te hanganga metallographic, ka taea te wehewehe ki:
(1)Ferritic kowiri tira (400 raupapa), chromium kowiri tira, te nuinga māngai e Gr13, G17, Gr27-30;
(2)Austenitic kowiri tira (raupapa 300), chromium-nickel kowiri tira, te nuinga tohu e 304, 316, 321, etc.
(3)Martensitic kowiri tira (200 raupapa), chromium-manganese kowiri tira, ihirangi waro tiketike, te nuinga māngai e 1Gr13, etc.
Te wa tuku: Sep-28-2022