Service conditions and their influence on oxide scale formation on metallic high temperature alloys for application in innovative combustion processes

2006 ◽  
Vol 57 (2) ◽  
pp. 122-127 ◽  
Author(s):  
G. Teneva-Kosseva ◽  
H. Ackermann ◽  
H. Köhne ◽  
M. Spähn ◽  
S. Richter ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
Scale Formation ◽  
High Temperature Alloys ◽  
Service Conditions ◽  
Combustion Processes

Oxide scale formation on Al containing Ni–Cr-based high temperature alloys during application as flame tube material in recirculation oil burners

2008 ◽  
Vol 59 (5) ◽  
pp. 380-388 ◽  
Author(s):  
H. Ackermann ◽  
G. Teneva-Kosseva ◽  
H. Köhne ◽  
K. Lucka ◽  
S. Richter ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
Scale Formation ◽  
Tube Material ◽  
Flame Tube ◽  
High Temperature Alloys

Investigation of Oxide-Nucleation on Ferritic FeCr Interconnect Alloys for Solid Oxide Fuel Cells Exposed to Anode and Cathode Gases at 850°C

2008 ◽  
Vol 595-598 ◽  
pp. 779-787
Author(s):  
Georg Kunschert ◽  
Hans Peter Martinz ◽  
Michael Schütze
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Thermal Cycling ◽  
Oxide Scale ◽  
Cross Sections ◽  
Scale Formation ◽  
Solid Oxide ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Oxide Fuel

In recent years solid-oxide fuel cell (SOFC) interconnect components have proven to be a key-component accountable for the functionality of high temperature fuel cells. Amongst adequate thermal expansion and high temperature strength, highest oxidation resistance in anode and cathode gases under thermal cycling conditions is required in order to reach long term durability, particularly when using thin film light-weight components with particular focus on automotive applications. In order to match the challenging parameter profile Plansee developed the mechanically alloyed ITM, a ferritic P/M Fe26Cr alloy strengthened with additions of Y2O3 dispersoids, since it has been observed that apart from their HT strengthening effect, which is of specific interest for thin sheets components, finest ODS particles reduce the growth and enhance the adhesion of the forming oxide layers. The latter effect is of particular interest in applications where alloys are exposed to HT cyclic conditions. In this work the nucleation phase of the oxide scale formation on P/M ODS Fe26Cr ITM is compared to that on a reference ingot steel Fe22Cr in typical anode gases containing significant amounts of H2, CO and approximately 3% H2O as well as in laboratory air at 850°C. Thermal cycling oxidation tests following the COTEST standard up to 168h are carried out in both environments. Moreover cyclic oxidation tests are performed in dry anode gas. Detailed studies of oxide scale formation and evolution by means of electron microscopy of cross sections as well as oxide surfaces are undertaken.

Properties of high-temperature alloys in short-term service conditions

1999 ◽  
Vol 41 (4) ◽  
pp. 151-153
Author(s):  
V. V. Medvedev ◽  
B. V. Mochalov ◽  
Yu. B. Sazonov ◽  
L. G. Chernukha ◽  
I. P. Ezhov
Keyword(s):  
High Temperature ◽  
Short Term ◽  
High Temperature Alloys ◽  
Service Conditions

High-Temperature Oxidation and Oxide Scale Formation in Plasma-Sprayed CoNiCrAlYRe Coatings

2014 ◽  
Vol 45 (12) ◽  
pp. 5362-5370 ◽  
Author(s):  
Giovanni Di Girolamo ◽  
Alida Brentari ◽  
Caterina Blasi ◽  
Luciano Pilloni ◽  
Emanuele Serra
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
High Temperature Oxidation ◽  
Scale Formation ◽  
Temperature Oxidation ◽  
Plasma Sprayed

Investigation on the Compatibility of Fe-Ni Magnetic Alloy With High Temperature Sodium

2013 ◽  
Author(s):  
Jin-quan Zhang ◽  
Pei-de Zhou ◽  
Yong-li Xu ◽  
Chun Xie ◽  
Xiao-gang Fu ◽  
...  
Keyword(s):  
Weight Gain ◽  
High Temperature ◽  
Oxide Scale ◽  
Pitting Corrosion ◽  
Scale Formation ◽  
Average Weight ◽  
Magnetic Alloy ◽  
Intergranular Attack ◽  
Test Conditions ◽  
Average Weight Gain

This paper presents the study of the compatibility of Fe-Ni magnetic alloy in high temperature sodium. After test, some detections were performed. The weight of all samples increased slightly after test, and the average weight gain increased as the temperature risen; Some Mn compounds and Cu were observed on the interface of steel with sodium, but there no pitting corrosion and intergranular attack were observed; There was no oxide scale formation on the surface of samples. The materials showed well compatibility with sodium under test conditions.

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