Abstract
This study reports on the electrochemical characteristics and corrosion fatigue performance of plastically deformed AISI 316L. Bulk deformation was processed through rotary swaging (RS) and surface deformation was induced through shot peening (SP). Moreover, hydroxyapatite coating (HA) was applied to the bulk- and surface-deformed materials to improve their corrosion resistance. Ringer's solution was used as an electrolyte for the corrosion and corrosion fatigue tests. The results showed marked improvement of the fatigue life, of rotary swaged and shot peened materials, tested in air and Ringer solution. In terms of the corrosion behavior, the rotary swaged (RS) material improved the corrosion resistance compared to the as-received material, while the shot peening (SP) led to lower corrosion resistance. Application of hydroxyapatite coating (HA) led not only to marked corrosion resistance but also to further improvement of the fatigue life.
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