The results of modifying the surface austenitic stainless steel by anodic plasma electrolytic treatment are presented. Surface was carried out in aqueous electrolytes based on ammonium chloride (10%) with addition ammonia (5%) as a source nitrogen (for nitriding), boric acid (3%) boron boriding) or glycerin carbon carburizing). Morphology, roughness, phase composition and microhardness diffusio...