Staged structural & xim hloov (1-24 lub hlis: maturation lub sij hawm)
Hauv thawj 1-3 lub hlis, cov ntaub ntawv nyias nyias, xoob xoob xoob xoob (daj liab liab-xim av, tsis sib xws); 6-12 lub hlis coj densification (tsaus, ntau yam reddish-xim av, yooj yim tiv thaiv); los ntawm 12-24 lub hlis, ib tug paub tab, ntom patina (nplua nuj reddish-xim av / tob russet) cov ntaub ntawv, nrog ib tug nruj daim ntawv cog lus rau cov hlau thiab tag nrho corrosion kuj.
Hloov maj mam ntev - lub sij hawm ua kom zoo nkauj (tom qab 24 lub hlis: lub sijhawm ruaj khov)
Cov laus patina cov tub ntxhais liab liab - xim av tsis ploj los yog tev. Nws tuaj yeem txhim kho ibmellow, ntau mellow qhov tob(me ntsis darker/richer) ntau xyoo dhau los vim huab cua ntuj, thiab qhov chaw me me zoo nkauj softening -cov no yog cov teebmeem kev laus uas ua rau nws zoo nkauj, rustic aesthetic, tsis puas.
Ib puag ncig- tau tsav qhov hloov pauv me me (tsis muaj kev tiv thaiv poob)
Nyob rau hauv temperate/well- qhov cua qhov chaw, kev hloov me me thiab sib xws; nyob rau hauv siab - thaj tsam av noo, lub patina tob me ntsis mus rau ib tug nplua nuj russet; plua plav / lub teeb khib nyiab tuaj yeem ua rau lub ntsej muag dullness ib ntus, uas tau yooj yim tshem tawm los ntawm kev yaug dej yaug (cov xim hauv qab patina tseem tsis zoo).
Kev tiv thaiv ruaj khov (tsis muaj degradation)
Thoob plaws hauv txhua qhov kev hloov pauv, patina tus qauv kev ntseeg siab thiab kev tiv thaiv corrosion yeej tsis poob. Its dense oxide layer remains a stable barrier against air/moisture, and minor damage self-repairs via natural weathering-no loss of the steel's inherent weather resistance.
