Q500nh yog aHuab Cua HlauTsim los ua ib qho ruaj khov, patina tiv thaiv txheej (patina) thaum raug rau cov huab cua zoo, ua kom qeeb qeeb ntxiv corrosion piv rau cov pa roj carbon hlau. Nws corrosion tsis kam yog2-4 lub sij hawm zoo dua li cov qauv hlau qauv hlau (piv txwv li, Q235)nyob rau hauv cov chaw tsim nyog.
Kev Ua Haujlwm Zoo Tshaj Plaws Ib puag ncig:
Qhib cua nrog cyclic ntub / qhuav mob- Txhawb nqa PATINE tsim.
Nroog / Nyob deb nroog Urmospheres- Tsawg rau cov pa phem (so₂, tsis muaj).
Thaj chaw lossis qhuav- Tsawg ntsev lossis tshuaj lom neeg raug.
Cov chaw ua haujlwm tsis zoo:
Nqaum|Tubrog teb chaws(High chloride → pitting).
Acidic / Alkaline Industrial Cheeb Tsam(tshuaj corrosion).
Lub sijhawm noo noo lossis dej tsis huv(Tiv thaiv patina stabilization).
Cov Nta Tseem Ceeb:
Patina txheej: Ntom, cov nplaum tsis muaj xeb Barrier (tsis tas yuav muaj kev pleev kob hauv huab cua sib luag).
Alloying Ntsiab: Cu, CR, NI, thiab P txhim kho corrosion tsis kam.
