| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stainless steel imported with excellent antibacterial characteristics without deteriorating productivity by utilizing the antibacterial action of Mo. SOLUTION: This stainless steel plate contains, as a steel material, 0.2 to 10 wt.% Mo, and Mo is concentrated, as a simple substance or an oxide, in an amount of >=0.2 atomic % in a surface film or in an amount of >=1.0 atomic % in a surface layer part, and the resultant Mo-concentrated layer is allowed to appear at the surface. The Mo-concentrated surface film or surface layer part can be formed by annealing at 600 to 1250 deg.C. Although it is preferable to adopt bright annealing which causes no deterioration in the Mo-concentrated layer in a descaling stage, antibacterial characteristics can be recovered, even in the case of annealed and acid-picked stainless steel, by allowing the surface layer having the Mo-concentrated layer to appear by means of grinding in the subsequent stage.</p> |
