Mekhoa ea ho bola ea litšepe ka kakaretso e ka aroloa ka mekhahlelo e 'meli: kutu e felletseng le kutu ea lehae.'Me corrosion ea sebakeng seo e ka aroloa ka: kutu ea sekoti, kutu ea likoti, kutu ea galvanic coupling corrosion, intergranular corrosion, selective corrosion, stress corrosion, corrosion corrosion, corrosion corrosion.
Comprehensive kutu e tšoauoa ka kutu ka tsela e tšoanang arotsoe ka holim'a tšepe, e le hore tšepe ka kakaretso thinning.Ho senyeha ho feletseng ho etsahala tlas'a boemo ba hore mochine o senyang o ka fihla likarolong tsohle tsa holim'a tšepe ka mokhoa o ts'oanang, 'me sebopeho le tlhophiso ea tšepe e batla e lekana.
Pitting corrosion, eo hape e tsejoang e le corrosion ea lesoba le lenyane, ke mofuta oa kutu o kenelletseng karolong e nyane haholo ea bokaholimo ba tšepe le botebong ba tšepe e ka hare ea pore-joaloka corrosion pattern.
Maemo a corrosion ea pitting hangata a kopana le maemo a thepa, a mahareng le a electrochemical:
1, ho cheka ka kakaretso ho etsahala ka tsela e bonolo ea holim'a tšepe (joalo ka tšepe e sa hloekang, aluminium) kapa holim'a tšepe e nang le cathodic plating.
2, pitting e etsahala ka pel'a li-ion tse khethehileng, tse kang li-ion tsa halogen bohareng.
3, pitting corrosion e etsahala sebakeng se itseng sa bohlokoa se kaholimo, se bitsoang bokhoni ba sekoti kapa monyetla oa ho phatloha.
Intergranular corrosion ke thepa ea tšepe ka mokhoa o itseng o senyang haufi le meeli ea lijo-thollo kapa meeli ea lijo-thollo haufi le ho senyeha, e le hore ho lahleheloa ke maqhama pakeng tsa lithollo tsa ketsahalo ea ho bola.
Ho bola ho khethollang ho bolela likarolo tse sebetsang haholoanyane ho li-alloys tse ngata ka ho khetheha tse qhibilihisitsoeng, ts'ebetso ena e bakoa ke phapang ea electrochemical likarolong tsa alloy.
Crevice corrosion ke ho ba teng ha electrolyte pakeng tsa tšepe le tšepe le tšepe le bao e seng tšepe bopa lekhalo moqotetsane, ho falla ha seaplane e thibiloe ha boemo ba localized corrosion.
Ho thehoa ha crevice corrosion:
1, khokahano lipakeng tsa likarolo tse fapaneng tsa sebopeho.
2, ka holim'a tšepe ea li-deposit, li-attachments, ho roala le lihlahisoa tse ling tsa kutu li teng.
Nako ea poso: Mar-15-2024