Answer
Lalacewa mai jujjuyawa yana faruwa lokacin da motsin dangi na mintuna (jijjiga) tsakanin zoben riƙewa da fuskar tsagi da ke ƙarƙashin kaya. Wannan motsi yana rushe shingen oxide mai kariya na karfe, yana haifar da saurin iskar oxygen da samuwar tarkace. A cikin akwatunan gear sararin samaniya, wannan na iya haifar da ɓarkewar tsagi da fitar da zobe daga ƙarshe. Maganin yana da ninki biyu: (1) Ƙara preload na axial ta amfani da maɓuɓɓugar ruwa tare da zoben riƙewa don kawar da motsin dangi. (2) Aiwatar da jiyya ta sama kamar Platin Azurfa ko Tungsten Disulfide ($ WS_2$) busasshen mai mai. Wadannan sutura suna aiki azaman Layer na hadaya kuma suna rage daidaituwar juzu'i, suna hana ' waldawar sanyi' da tsagewar saman ƙarfe wanda ke nuna tsarin fretting.
