Ion Implanted AISI 316 Stainless Steel Foil (Light Tight)

Ion Implanted AISI 316 Stainless Steel Foil (Light Tight) enhances the already resilient AISI 316L matrix by embedding nitrogen or helium ions directly into the near-surface layer, producing a compact, atomically engineered foil ideal for environments requiring light impermeability and surface longevity. Ion energies between 60–100 keV create a metastable nitride-rich phase that increases hardness by up to 30% and corrosion resistance by more than 2.5-fold. This foil is extensively used in medical devices, vacuum seals, and particle containment chambers, where it functions in roles like MRI shielding, light-sensitive biosensor enclosures, and optoelectronic isolation. With Vickers hardness exceeding 510 HV and corrosion current densities reduced below 0.07 mA/cm², the material meets extreme criteria for both biocompatibility and durability. Ion implantation ensures surface enhancement without altering the bulk metal, positioning this light-tight variant as a cornerstone in nanostructured surface engineering, advanced implants, and photonic integration.