Loaʻa i ka kila kila ka liʻiliʻi o 10.5% chromium, e hana ana i kahi ʻāpana ʻokikene lahilahi, ʻike ʻole ʻia, a pili pono i ka ʻili o ke kila i kapa ʻia ʻo "passive layer."ʻO kēia ʻāpana passive ka mea e pale ai i ke kila kila i ka pala a me ka ʻino.
Ke hōʻikeʻia ke kila i ka oxygen a me ka wai, e hana ka chromium i ke kila me ka oxygen i ka lewa e hana i kahi'āpana lahilahi o ka chromium oxide ma kaʻili o ke kila.He mea pale loa kēia ʻāpana chromium oxide, no ka mea, paʻa loa a ʻaʻole hiki ke wāwahi.ʻO ka hopena, pale maikaʻi ia i ke kila ma lalo o ka hoʻopili ʻana me ka ea a me ka makū, pono ia no ke kaʻina hana ʻana.
He mea koʻikoʻi ka papa passive i ka pale ʻana o ke kila kila, a ʻo ka nui o ka chromium i loko o ke kila e hoʻoholo ai i kona hiki ke pale aku i ka pala a me ka pala.Loaʻa ka ʻike chromium kiʻekiʻe i kahi papa passive pale a ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion.Hoʻohui ʻia, hiki ke hoʻohui ʻia nā mea ʻē aʻe e like me ka nickel, molybdenum, a me ka nitrogen i ke kila e hoʻomaikaʻi ai i kona pale ʻana i ka corrosion.
Ka manawa hoʻouna: Feb-15-2023