Answer
Nitriding wani tsari ne na sinadarai mai zafi wanda ke watsa nitrogen a cikin saman karfe (yawanci carbon karfe ko ƙananan ƙarfe) don ƙirƙirar 'harka' mai wuya, mai jurewa. Don zoben da ke riƙe da karkace da aka yi amfani da su a cikin injina masu nauyi ko masu faɗakarwa, nitriding yana ƙara taurin saman sama zuwa sama da $60 HRC $. Wannan ƙaƙƙarfan Layer yana hana 'fretting' da 'galling' tsakanin zobe da bangon tsagi, wanda zai iya faruwa lokacin da manyan girgizar ƙasa ke haifar da ƙaramar gogewa. Ana aiwatar da tsarin a ƙananan yanayin zafi ($ 925 ^\circ F$ zuwa $ 1050 ^\circ F$), wanda ke rage murdiya na geometry na zobe. Sakamakon matsananciyar matsananciyar damuwa a saman kuma yana inganta rayuwar gajiyar zobe ta hanyar hana farawa da fashewar saman.
