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Irin alagbara, irin classification

Nibẹ ni o wa marun ipilẹ orisi tiirin ti ko njepata:austenitic, ferritic, martensitic, duplex, ati lile ojoriro.

(1) Awọn irin alagbara Austenitic kii ṣe oofa, ati awọn onipò irin aṣoju jẹ 18% chromium ti a ṣafikun ati iye kan ti nickel ti a ṣafikun lati mu resistance ipata pọ si.Wọn ti wa ni o gbajumo ni lilo irin onipò.

(2) Ferrite jẹ oofa, ati eroja chromium jẹ akoonu akọkọ rẹ, pẹlu ipin ti 17%.Awọn ohun elo yi ni o ni o dara ifoyina resistance.

(3) Irin alagbara Martensitic tun jẹ oofa, akoonu ti chromium nigbagbogbo jẹ 13%, ati pe o ni ipin ti o yẹ ti erogba, eyiti o le ni lile nipasẹ pipa ati iwọn otutu.

(4) Duplex alagbara, irin ni o ni a adalu be ti ferrite ati austenite, awọn akoonu ti chromium laarin 18% ati 28%, ati awọn akoonu ti nickel jẹ laarin 4.5% ati 8%.Wọn jẹ sooro pupọ si ibajẹ kiloraidi.Awọn esi to dara.

(5)Akoonu aṣa ti chromium ni irin alagbara, irin ojoriro jẹ 17, ati iye kan ti nickel, Ejò ati niobium ti wa ni afikun, eyiti o le jẹ lile nipasẹ ojoriro ati ti ogbo.

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Gẹgẹbi ilana metallographic, o le pin si:

(1)Ferritic alagbara, irin (400 jara), chromium alagbara, irin, o kun ni ipoduduro nipasẹ Gr13, G17, Gr27-30;

(2)Austenitic alagbara, irin (300 jara), chromium-nickel alagbara, irin, o kun ni ipoduduro nipasẹ 304, 316, 321, ati be be lo;

(3)Martensitic alagbara, irin (200 jara), chromium-manganese alagbara, irin, ga erogba akoonu, nipataki ni ipoduduro nipasẹ 1Gr13, ati be be lo.

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Akoko ifiweranṣẹ: Oṣu Kẹsan-28-2022