Official Answer
Answer
Maganin Cryogenic ( sanyaya kayan zuwa $ -300 ^ ° F $ na tsawon awanni 24) wani lokaci ana amfani da shi akan babban ƙarfe na carbon ko wasu zoben bakin karfe don tabbatar da cikakkiyar canjin austenite da aka riƙe zuwa martensite. Riƙe austenite ba shi da kwanciyar hankali kuma yana iya canzawa akan lokaci ko ƙarƙashin damuwa a yanayin zafin ɗaki, yana haifar da faɗaɗa zobe ko ɗan kwangila. Don ingantattun aikace-aikace, kamar riƙon zoben da aka yi amfani da su a cikin tsarin jagorar sararin samaniya, maganin cryogenic yana tabbatar da 'kwanciyar hankali' - zoben ba zai canza girma ba tsawon shekaru na sabis. Hakanan yana ɗan ƙara ƙarfi da juriya na kayan ta haɓaka hazo na lafiya eta-carbides.
