Identify the primary failure mode of a carbon steel wave spring in a high-humidity environment without plating.

Yanayin rashin nasara na farko shine Stress Corrosion Cracking (SCC) ko oxidation mai sauƙi wanda ke haifar da rami. Karfe na Carbon (SAE 1070-1090) yana da saurin kamuwa da tsatsa a gaban danshi. Pitting yana aiki azaman mai mai da hankali sosai ($ K_t$). Saboda maɓuɓɓugan ruwan raƙuman ruwa suna aiki a matakan damuwa mai yawa (sau da yawa 30-50% na ƙarfin jurewa), rami na iya canzawa da sauri zuwa fashewar gajiya. Da zarar tsaga ya fara, raguwar yanki na giciye yana kaiwa ga saurin yaduwa har sai lokacin bazara ya kama. Don hana hakan, galibi ana kammala maɓuɓɓugan ƙarfe na carbon da Zinc Phosphate (mai tsoma) ko Vapor Degreased kuma an shafe shi da mai mai hana lalata.