High-Temperature Oxidation and Pickling Behaviour of HSLA Steels

Gutiérrez-Platas, J.L.; Artigas, Alfredo; Monsalve, Alberto; García-Gómez, Nora A.; García-Rincón, Omar; Garza-Garza, M. De la; Pérez-González, Francisco A.; Colás, Rafael; Garza-Montes-de-Oca, Nelson F.

doi:10.1007/s11085-017-9832-3

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…The oxidation rate is influenced significantly by the chemical composition of steel, especially by the elements chromium and silicon [19,[29][30][31][32][33][34][35][36][37][38][39], and experimental parameters, such as temperature [5,19,[21][22][23][24][25][40][41][42][43], surface condition [44], type of gas, and gas quantity. The influence of water vapor and the gas flow rates are explained in more detail.…”

Section: Oxidation Kinetics and Influencing Factorsmentioning

confidence: 99%

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

Gaiser

Presoly

Bernhard

2023

Metals

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High-temperature oxidation phenomena play a crucial role in steel production and processing. The development of new alloying concepts, the modification of production routes due to the decarbonization of steelmaking, and increasing quality demands will additionally stimulate research activities on high-temperature oxidation. Within the scope of this publication, the oxidation behavior of an unalloyed steel was investigated by means of thermogravimetric (TG) and metallographic analysis. The TG measurements were performed with a simultaneous thermal analyzer in combination with a water vapor generator and a mass spectrometer for quality control. Experiments were conducted in a temperature range from 900 to 1200 °C under various oxidation atmospheres, containing synthetic air and water vapor, with different linear flow rates of the oxidizing medium. According to the thermogravimetric data, an evaluation method is introduced to obtain direct kinetic data for linear and parabolic scale growth. The influence of the experimental parameters on high-temperature oxidation is discussed in detail.

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Section: Oxidation Kinetics and Influencing Factorsmentioning

confidence: 99%

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

Gaiser

Presoly

Bernhard

2023

Metals

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“…A large body of work has been done on thermogravimetric analysis of various metals; however, not much has been carried out for spring steels. The oxidation and decarburisation of steels have been extensively investigated [8][9][10][11]. They have investigated various steel chemistries and conditions; however, the specific condition and chemistry of spring steels have not been investigated, and there is limited information on the oxidation rates of specific spring steels.…”

Section: Introductionmentioning

confidence: 99%

Thermal characteristics of spring steels used in railway bogies

et al. 2019

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During the heat treatment of springs for railway bogies, phase transformations and oxidation occur and it is important to know transformation temperatures and oxidation rates to optimise the process. Oxidation and decarburisation can adversely affect the surface properties of steel when not limited to the bare minimum. The oxidation rates and materialspecific phase transformation of the spring steels were evaluated by means of differential scanning calorimetry. Three spring steels with known mass were heated and cooled. The change in the corresponding heat flow was evaluated. The materials were also subjected to a regular spring steel heat treatment process in order to determine the relationship between oxidation rate and decarburisation. This allowed for the observation of phase transition and oxidation rate for each steel. The results of these investigations showed that there is a nonlinear relationship between oxidation and decarburisation. The three materials analysed showed distinct properties; therefore, understanding of the material characteristics is important. Material A showed a high oxidation rate with decreased decarburisation, whereas material B showed less oxidation and higher decarburisation due to higher silicon contents.

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Reduction Behavior of Oxide Scales Containing Different Structures on the Surface of Hot‐Rolled Steel Strip in Gas Mixture H₂/Ar at 400–625 °C

Wang

Gao

et al. 2019

steel research int.

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The reduction behavior of the oxide scales with two different microstructures in the gas of H2:Ar = 1:2 at 400–625 °C is investigated in detail. The mass change in the scale is measured by thermogravimetric analysis, and a function between reduction degree, reduction temperature, and reaction time is established. The experiment results show that the increase in temperature has an accelerating influence on the reduction reaction of the scale with eutectoid (Fe3O4/α‐Fe) until reaching 550 °C, and then the further increase in temperature decelerates the reduction. For the scale without eutectoid, the reduction rate at 450 °C is extremely high, and then the rate decreases with the increase in temperatures. Additionally, the reduction rate in the scale with eutectoid is faster than that without eutectoid at the temperature range of this study. At 400–550 °C, a large number of phase interfaces appear within the scale with eutectoid, which can provide diffusion channels for hydrogen atoms and water molecules within the Fe oxides. When the temperature reaches 575–625 °C, the phase transformation in the scale (Fe3O4 + α‐Fe → FeO) is accompanied by the reduction reaction, which is believed to be responsible for the lower reaction rate.

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High-Temperature Oxidation and Pickling Behaviour of HSLA Steels

Cited by 6 publications

References 25 publications

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

Thermal characteristics of spring steels used in railway bogies

Reduction Behavior of Oxide Scales Containing Different Structures on the Surface of Hot‐Rolled Steel Strip in Gas Mixture H₂/Ar at 400–625 °C

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High-Temperature Oxidation and Pickling Behaviour of HSLA Steels

Cited by 6 publications

References 25 publications

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data

Thermal characteristics of spring steels used in railway bogies

Reduction Behavior of Oxide Scales Containing Different Structures on the Surface of Hot‐Rolled Steel Strip in Gas Mixture H2/Ar at 400–625 °C

Contact Info

Product

Resources

About

Reduction Behavior of Oxide Scales Containing Different Structures on the Surface of Hot‐Rolled Steel Strip in Gas Mixture H₂/Ar at 400–625 °C