Articles comprising ferritic stainless steels
An article of manufacture comprises a ferritic stainless steel that includes a near-surface region depleted of silicon relative to a remainder of the ferritic stainless steel. The article has a reduced tendency to form an electrically resistive silica layer including silicon derived from the steel when the article is subjected to high temperature oxidizing conditions. The ferritic stainless steel is selected from the group comprising AISI Type 430 stainless steel, AISI Type 439 stainless steel, AISI Type 441 stainless steel, AISI Type 444 stainless steel, and E-BRITE.RTM. alloy, also known as UNS 44627 stainless steel. In certain embodiments, the article of manufacture is a fuel cell interconnect for a solid oxide fuel cell.
- Research Organization:
- ATI PROPERTIES, INC., Albany, OR (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-05NT42513
- Assignee:
- ATI PROPERTIES, INC. (Albany, OR)
- Patent Number(s):
- 9,376,741
- Application Number:
- 13/873,270
- OSTI ID:
- 1259648
- Resource Relation:
- Patent File Date: 2013 Apr 30
- Country of Publication:
- United States
- Language:
- English
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