168 Whatunga whakaraerae: e rima nga hanganga taketake o te rino – koranu waro!

1. Te ferrite
Ko te Ferrite he wairewa totoka interstitial i hanga e te waro memeha ki -Fe. Ko te nuinga o nga wa e kiia ana ko te F.Kei te pupuri i te hanganga whaanui kubiko nui o te alpha -Fe.Ferrite he iti te ihirangi waro, a ko ona taonga miihini e tata ana ki te rino parakore, te kirihou teitei me te uaua, me te iti o te kaha me te pakeke.
2. Ko te austenite
Ko Austenite He otinga totoka interstitial o te waro rewa i roto i te -Fe, ko te tikanga ko te A.Kei te pupuri tonu i te anga kubiko mata-pokapū o te gamma-Fe.He teitei ake te whakarewatanga waro o Austenite i te ferrite, a ko ona ahuatanga miihini e tohuhia ana e te kirihou pai. , iti kaha, iti pakeke me te ngāwari deformation kirihou.

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3. Te cimentite
Ko te Cementite he puhui i hangaia e te rino me te waro, ko tana tauira matū ko Fe3C.Kei roto i te 6.69% te waro me te hanganga karaihe matatini.Ko te cimentite he tino pakeke, he kino te kirihou, he tata ki te kore, he waahi pakeke me te pakaru. Ko te Cementite he mahi whakapakari i roto i te waro waro.I roto i te rino-waro koranu, ko te teitei ake o te ihirangi waro, te nui ake o te cimentite, te teitei ake o te pakeke me te iti o te kirihou o nga whakarewa.
4. Pereti
Ko te peariki he ranunga miihini o te ferrite me te cimentite, ko te nuinga o te wa e tohuhia ana e te P.Ko te nuinga o te waro o te pearlite ko te 0.77%, a ko ona taonga miihini kei waenganui i te ferrite me te cimentite, me te kaha nui, te pakeke ngawari me etahi kirihou.Na te maimoatanga wera, te Ka taea te tohatoha cimentite i roto i te ahua kirikiri i runga i te matrix ferrite. Ko tenei ahua o te hanganga e kiia ana ko te pearlite porohita, a he pai ake tana mahi matawhānui.
5. Ledeburite
Ko te Leutenite he ranunga miihini o te austenite me te cimentite, ko te tikanga ko te Ld. Ko te waro toharite o te Leutenit ko te 4.3%. Ina whakamatao ki te 727 ℃, ka huri te austenite i te leustenite ki te pearlite. me te cimentite, e kiia ana ko te leutenite i te pāmahana iti, e tohuhia ana e te Ld '. Ko te hangahanga moroiti o Leutenite i ahu mai i te cimentite, no reira he uaua, he pakarukaru hoki ona ahuatanga miihini.


Wā tuku: Akuhata-03-2020

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