摘要 |
A method of reducing the formation of electrically resistive scale on a a n article comprising a silicon-containing ferritic stainless subjected to ox idizing conditions in service includes, prior to placing the article in serv ice, subjecting the article to conditions under which silica, which includes silicon derived from the steel, forms on a surface of the steel. Optionally , at least a portion of the silica is removed from the surface to placing th e article in service. A ferritic stainless steel alloy having a reduced tend ency to form silica on at least a surface thereof also is provided. The stee l includes a near-surface region that has been depleted of silicon relative to a remainder of the steel. |