[G] Biomaterials Development and Clinics

4:35 PM - 4:50 PM JST(7:35 AM - 7:50 AM UTC)

[187] Influence of unidirectional laser marking in ambient air on the surface properties of biomedical 316L stainless steel

*Tanapa Srito^1,2, Chinnawich Phamornnak³, Anak Khantachawana⁴, Methawee Nukunudompanich², Kazuyo Omura¹, Kenta Yamanaka¹, Phacharaphon Tunthawiroon², Kasama Srirussamee² (1. Graduate School of Biomedical Engineering, Tohoku Univ., Sendai 980-8579, Japan、2. School of Engineering, KMITL, Bangkok, 10520, Thailand、3. BIOTEC, Pathum Thani, 12120, Thailand、4. Biological Engineering, KMUTT, Bangkok 10140, Thailand)

Keywords:

Laser marking,Corrosion resistance,Unique device identification,Medical devices,Oxide layer,316L stainless steel

Some medical implants require direct marking for traceability but marking could compromise the implant surface properties. The optimal parameters for marking AISI 316L with fiber laser was studied.