Journal ArticleDOI
Review of the High-Temperature Oxidation of Iron and Carbon Steels in Air or Oxygen
R. Y. Chen,W.Y.D. Yeun +1 more
TLDR
In this article, the authors reviewed previous studies on iron and steel oxidation in oxygen or air at high temperatures and found that the scale structures are similar to those formed on iron, but for longer-time oxidation, because of the less adherent nature, the scale structure developed are typically much more complex.Abstract:
This paper reviews previous studies on iron and steel oxidation in oxygen or air at high temperatures. Oxidation of iron at temperatures above 700°C follows the parabolic law with the development of a three-layered hematite/magnetite/wustite scale structure. However, at temperatures below 700°C, inconsistent results have been reported, and the scale structures are less regular, significantly affected by sample-preparation methods. Oxidation of carbon steel is generally slower than iron oxidation. For very short-time oxidation, the scale structures are similar to those formed on iron, but for longer-time oxidation, because of the less adherent nature, the scale structures developed are typically much more complex. Continuous-cooling conditions, after very short-time oxidation, favor the retention of an adherent scale, suggesting that the method proposed by Kofstad for deriving the rate constant using continuous cooling or heating-oxidation data is more appropriate for steel oxidation. Oxygen availability has certain effects on iron and steel oxidation. Under continuous cooling conditions, the final scale structure is found to be a function of the starting temperature for cooling and the cooling rate. Different scale structures develop across the width of a hot-rolled strip because of the varied oxygen availability and cooling rates at different locations.read more
Citations
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Journal ArticleDOI
Heat transfer fluids for concentrating solar power systems – A review
TL;DR: In this paper, the current status of heat transfer fluid, which is one of the critical components for storing and transferring thermal energy in concentrating solar power systems, is reviewed in detail, particularly regarding the melting temperature, thermal stability limit and corrosion issues.
Journal ArticleDOI
Influence of temperature on the electrochemical and passivation behavior of 2507 super duplex stainless steel in simulated desulfurized flue gas condensates
Zhongyu Cui,Liwei Wang,Ni Hongtao,Wenkui Hao,Cheng Man,Chen Shuangshuai,Xin Wang,Zhiyong Liu,Xiaogang Li +8 more
TL;DR: In this article, the influence of temperature on the electrochemical and passivation behavior of 2507 super duplex stainless steel in the simulated desulfurized flue gas condensates in thermal power plant chimney is investigated.
Journal ArticleDOI
Kinetics and mechanism of solar-thermochemical H2 production by oxidation of a cobalt ferrite–zirconia composite
TL;DR: In this paper, an investigation of the redox activity and oxidation kinetics of cobalt ferrite, a promising material for this application that is representative of a broader class of metal-substituted ferrites, is presented.
Journal ArticleDOI
Bicrystalline Hematite Nanowires
TL;DR: Investigations indicate that most of the bicrystalline nanowires of hematite (alpha-Fe(2)O(3)) are nanotwins with ellipsoidal heads, and an energy-filtered TEM investigation indicates that the ellip soidal head is iron-rich.
Journal ArticleDOI
Iron Oxidation at Low Temperature (260-500 C) in Air and the Effect of Water Vapor
Nathalie Bertrand,Clara Desgranges,Dominique Poquillon,Marie-Christine Lafont,Daniel Monceau +4 more
TL;DR: In this paper, the parabolic rate constants deduced from microbalance experiments were found to be in good agreement with the few existing values of the literature, and the presence of water vapor in air was found to strongly influence the transitory stages of the kinetics.
References
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MonographDOI
Introduction to the high-temperature oxidation of metals
TL;DR: In this article, the authors present a solution to Fick's second law for a semi-infinite solid and a rigorous derivation of the kinetics of internal oxidation, as well as the effects of impurities on oxide defect structure.
Book
Introduction to high temperature oxidation of metals
Neil Birks,Gerald H. Meier +1 more
TL;DR: In this paper, the authors introduce high temperature oxidation of metals, and introduce the concept of high temperature oxidization of metals and its application in the field of high-temperature computer vision.
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A study of the scale structure of hot-rolled steel strip by simulated coiling and cooling
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