Biomimmetic Coating of 316L Stainless Steel with Microdeformation Areas on The Surface


Creative Commons License

Sarikayak A., Koc E., Kalkan M., TOKER S. M.

JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2022 (ESCI) identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.2339/politeknik.1087415
  • Journal Name: JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI
  • Journal Indexes: Emerging Sources Citation Index (ESCI), TR DİZİN (ULAKBİM)
  • Keywords: Biomimetic coating, 316L stainless steel, surface processing, microdeformation, IMPLANT, TECHNOLOGY
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

In this study, the effects of controlled patterns formed through surface microdeformation process on the biomimetic calcium phosphate coating of 316L stainless steel, commonly used biomedical materials for orthopedic implants, were tested via static immersion experiments in simulated body fluid. Among the different patterns that were formed, the pattern consisting of narrower inter indent spacing and lower indent depth was found to show the optimum properties. Surface roughness and new structure formation (structures with oxide and calcium-phosphate) behaviors were not directly correlated, and it was suggested that this behavior stemmed from the effect of the microdeformation patterns on the dislocation mechanism as an important factor in increasing the surface energy. After the 3-days immersion period, in comparison with the control sample it was determined that the microdeformation patterns formed on the sample surfaces, which triggered dislocation mechanisms, positively affected the precipitation of oxide and calcium-phosphate structures by increasing the roughness and surface energy on the sample surface.