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Title: 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.
Authors:
Publication Date:
OSTI Identifier:
1259648
Report Number(s):
9,376,741
13/873,270
DOE Contract Number:
FC26-05NT42513
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Apr 30
Research Org:
ATI PROPERTIES, INC., Albany, OR (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION