Improving the Oxidation Resistance of Fe-Cr-Mn Interconnector of Solid Oxide Electrolyte Fuel Cell with the Addition of Trace Elements

2010 ◽  
Vol 72 ◽  
pp. 243-248
Author(s):  
W.S. Wang ◽  
Shuang Shii Lian ◽  
C. Chen ◽  
K.C. Tsai ◽  
W.J. Shong ◽  
...  
Keyword(s):  
Trace Elements ◽  
High Temperature ◽  
Oxidation Resistance ◽  
Solid Oxide ◽  
Solid Oxide Electrolyte ◽  
Temperature Oxidation ◽  
Bcc Structure ◽  
Metallic Interconnector ◽  
Oxide Evaporation ◽  
Oxide Electrolyte

Fe-Cr-Mn alloy is a common material used for the metallic interconnector of solid oxide electrolyte fuel cells (SOFC). However, its high temperature oxidation resistance needs to be strengthened to improve the performance of SOFC. In this study, the effect of trace additions of Ti, Mo, Co and La on the high-temperature behavior of Fe-Cr-Mn alloy was investigated. The composition of Fe-22Cr-2Mn-X (X = Ti, Mo, Co, La) alloys was designed to maintain a bcc structure with the aid of the thermal-calc software. These alloys tended to form Cr-rich oxide in the inner layer and Mn-rich oxide in the outer layer of the specimens after oxidative tests at 850°C, thus reducing the likelihood of chromium oxide evaporation. The experimental results indicated that the addition of Co and La produced better oxidation resistance at high temperatures than Ti and Mo. In addition, the influence of trace elements on electrical resistance of the interconnector material was examined as well.

The Alloy Design of Metallic Interconnector of Solid Oxide Electrolyte Fuel Cell (SOFC)

2007 ◽  
pp. 1617-1620
Author(s):  
Ian Bo Chen ◽  
Shuang Shii Lian ◽  
Chia Ying Li ◽  
Wei Ja Shong ◽  
Ruey Yi Lee
Keyword(s):  
Fuel Cell ◽  
Alloy Design ◽  
Solid Oxide ◽  
Solid Oxide Electrolyte ◽  
Metallic Interconnector ◽  
Oxide Electrolyte

In situ high-temperature powder diffraction studies of solid oxide electrolyte direct carbon fuel cell materials in the presence of brown coal

2016 ◽  
Vol 51 (8) ◽  
pp. 3928-3940
Author(s):  
Adam C. Rady ◽  
C. Munnings ◽  
Sarbjit Giddey ◽  
Sukhvinder P. S. Badwal ◽  
Sankar Bhattacharya ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Powder Diffraction ◽  
Brown Coal ◽  
Solid Oxide ◽  
Solid Oxide Electrolyte ◽  
Fuel Cell Materials ◽  
Direct Carbon Fuel Cell ◽  
Oxide Electrolyte

AK STEEL 441

Alloy Digest ◽  
2006 ◽  
Vol 55 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Ferritic Stainless Steel ◽  
High Temperature Oxidation ◽  
High Temperature Strength ◽  
Temperature Oxidation ◽  
Temperature Performance

Abstract AK Steel 441 has good high-temperature strength, an equiaxed microstructure, and good high-temperature oxidation resistance. The alloy is a niobium-bearing ferritic stainless steel. This datasheet provides information on composition, hardness, and tensile properties as well as deformation. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-965. Producer or source: AK Steel.

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