Answer
Passivation magani ne na sinadari wanda aka ƙera don cire baƙin ƙarfe na 'tramp' daga saman bakin karfe da haɓaka Layer na chromium-oxide mai karewa. Don Bakin Karfe 316 (wanda ya ƙunshi $2-3% $ Molybdenum don ingantacciyar juriya ta rami), wucewa a cikin wankan nitric ko citric acid yana da mahimmanci bayan nadawa da hanyoyin magance zafi. Idan barbashi na baƙin ƙarfe daga kayan aikin sun kasance a saman, za su iya fara ƙwayoyin galvanic na gida, wanda zai haifar da lalata a cikin yanayin saline (mai arzikin chloride). Tsarin kowane ASTM A967 yana tabbatar da cewa rabon $Cr/Fe$ akan saman yana haɓaka, yana samar da 'passivity' da ake buƙata don nutsewa na dogon lokaci a cikin ruwan teku ko aikace-aikacen likita inda bazara ke fallasa ga ruwan jiki.
