1. Ko ngā āhuatanga o te paipa maitai kowiri tira takirua he iti rawa te waro, he iti te hauota, he hanganga noa ko te Cr5% Ni0.17%n me te 2205 teitei ake te ihirangi hauota i te whakatupuranga tuatahi o te paipa maitai kowiri tira takirua, e whakapai ake ana i te ātete ki te waikura ahotea me te ātete ki te poka o te pāpāho waikawa me te kukū katote hauota teitei. He huānga hanga austenite kaha te hauota. Ko te tāpiri o te hauota ki te maitai kowiri tira takirua ehara i te mea ka whakapai ake i te kirihou me te pakari o te maitai me te kore e kitea he kino, engari ka whakapai ake hoki i te kaha o te maitai, ā, ka aukati i te maturuturu me te whakaroa o ngā warowaihā.
2. Te mahi whakahaere: I roto i te whare kati kōtuhi, tata ki te haurua o te wairewa totoka ko te austenite me te ferrite, he āhuatanga hanganga biphase tōna. Ka mau tonu ngā āhuatanga o te iti o ngā ara iahiko maitai kore waikura ferritic, te ātete ki te pakaru, te ngatata me te waikura ahotea chloride, he pakari pai, he iti te pāmahana pakaru, he ātete ki te waikura intergranular me ngā āhuatanga miihini me te pai o te whakarewa.
3. I raro i ngā āhuatanga pēhanga ōrite, ka taea te whakaora rauemi, ko te kaha hua me te ātete waikura ahotea o te paipa maitai kowiri tira takirua he tata ki te 1 ngā wā i te maitai kowiri tira austenitic, ko te tauwehenga whānui rārangi he iti iho i te maitai kowiri tira austenitic o te pūnaha maitai kowiri tira austenitic, ā, he tata ki taua te maitai waro iti. Kāore te hanga matao i te rite te pai ki te maitai kowiri tira austenitic.
4. Āheitanga Whakarewa: He pai te āheinga whakarewa o te paipa maitai takirua 2205, he iti te aro ki te whakarewatanga makariri me te wera, kāore e hiahiatia he whakamahana i mua i te whakarewatanga, kāore hoki he maimoatanga wera i muri i te whakarewatanga. Nā te iti o te ia o te ferrite kotahi-wāhanga me te nui o te hauota i roto i te rohe e pāngia ana e te wera, ka taea te whakahaere i te kaha o te waea whakarewatanga i tēnei wā ina whiriwhiria tika te rauemi whakarewatanga, ā, he pai te mahi whānui.
5. Pakaru wera: He iti ake te aro o te pakaru wera i tērā o te maitai kore waikura austenitic. Nā te mea kāore i te nui te ihirangi nikara, he iti ngā poke e ngāwari ana ki te hanga i te eutectic iti-rewa, he uaua ki te whakaputa i te kiriata wai he iti te ira rewa, ā, kāore he mōrearea tere o te tipu o te witi i ngā pāmahana tiketike.
6. Te pakarukaru o te rohe e pāngia ana e te wera: Ko te raruraru matua o te whakarewanga o te paipa maitai kowiri tira takirua ko te rohe e pāngia ana e te wera. Nā te tere o te whakamatao o te rohe e pāngia ana e te wera i roto i te āhua kore-taurite o te huringa wera whakarewa, ka mau tonu te ferrite whakamatao ake, ka piki ake te aro ki te waikura me te pakaru i puta mai i te hauwai.
7. Te whakarewa whakarewa: I te wā o te tukanga whakarewa o te maitai kore waikura takirua, i raro i te mahi a te huringa wera, kua rerekē te hanganga moroiti me te rohe e pāngia ana e te wera o te maitai whakarewa. I ngā pāmahana teitei, ka puta te hanganga moroiti o te maitai kore waikura takirua e te ferrite me te austenite i te wā whakamatao. He maha ngā āhuatanga e pāngia ana e te nui o te ua austenite.
Wā tuku: Pipiri-26-2023