oxidation behavior of fe

oxidation behavior of fe

(PDF) Oxidation Behavior of FeAl, FeSi and FeAlSi

The description of the synergic effect of aluminum and silicon on the oxidation behavior of FeAlSi alloys at 800 °C in air is presented. The oxidation rate, microstructure, phase, and

(PDF) Oxidation Behavior of FeAl, FeSi and FeAlSi

The oxidation behavior of both ternary FeAlSi alloys is almost the same (Figure 2 ), exhibiting a three to four orders lower parabolic rate constant than both binary alloys (Figure 3 ). (PDF) Oxidation behavior of FeAl+Hf, Zr, BPDF On Jan 1, 1988, J.L. Smialek and others published Oxidation behavior of FeAl+Hf, Zr, B Find, read and cite all the research you need on ResearchGate

(PDF) Steam Oxidation Behavior of FeCrAl Cladding

In order to better understand the high temperature steam oxidation behavior of FeCrAl alloys, this study addressed two topics. of the Fe-rich oxide formed in water on the subsequent steam A comparison of the oxidation behavior of Fe-Cr-Al, Ni-Cr The oxidation behavior is discussed in terms of the pertinent alloy and oxide parameters. The main modes of isothermal oxidation of Fe-Cr-Al, Ni-Cr-Al, and Co-Cr-Al Alloys, containing 1015 % or 2630 % Cr and 0.91.3 % or 4.3&

Abnormal oxidation behavior of Fe in Ti(C,N)-304ss cermet

Jun 25, 2019 · This research has studied the abnormal oxidation behavior of Fe in Ti(C,N)-304ss cermet in the air at 650 °C by SEM and LSCM. Fe atoms in 304ss were oxidized and formed Fe 2 TiO 5 after 4 min. With increasing oxidation time, iron-containing oxide (Fe 2 O 3) grew up rapidly and covered the oxidation surface. The thickness of the iron-containing oxide increased from 0.489 ± 0.039 m at 4 Arsenic(V) removal behavior of schwertmannite synthesized In the H 2 O 2 oxidation process, the Fe 2+ in the solution acts as a catalyst to improve the oxidation ability of H 2 O 2, resulting in the quick oxidation of Fe 2+ to Fe 3+ (Liu et al., 2015). The synthesized schwertmannite can also be a catalyst to form hydroxyl radicals by decomposing H 2 O 2 (Wang et al., 2013; Duan et al., 2016).

Effect of NiO addition on the high-temperature oxidation

A new type of FeNi ceramet inert anode with the NiO contents of 0, 10, 20 and 30 wt% for aluminum electrolysis was prepared by the powder metallurgy process. The effects of NiO addition on the high-temperature oxidation and corrosion behaviors of the ceramet had been investigated by the thermogravimetric analysis and electrolysis, respectively. Effect of surface mechanical treatment on the oxidation oxidation resistance and equally their lifetime at high temperatures become to be a crucial factor during materials engineering. It was found that different surface preparations result in a different oxidation behavior of a wide range of alloys, e.g., Ni-base superalloys [1015], iron [16], or Fe

Effects of Si Content on the Oxidation Behavior of FeSi

The oxidation behavior of FeSi alloys at 1073K in air was investigated. The oxidation kinetics described by the parabolic rate law of diffusion controlled oxidation and the oxidation rate decrease with the increasing Si content. Fe-Si alloys were oxidized for different times at 1073K to obtain the same scale thickness of approximately 30m. Effects of Si Content on the Oxidation Behavior of FeSi The oxidation behavior of FeSi alloys at 1073K in air was investigated. The oxidation kinetics described by the parabolic rate law of diffusion controlled oxidation and the oxidation rate decrease with the increasing Si content. Fe-Si alloys were oxidized for different times at 1073K to obtain the same scale thickness of approximately 30m.

High-Temperature Oxidation Behavior and Mechanism of

The oxidation behavior of a new type of wrought NiFeCrAlsuperalloy has been investigated systematically in the temperature range of1100 to 1300°C. Results are compared with those of alloy 214, Inconel600, and GH 3030. It is shown that the oxidation resistance of the newsuperalloy is excellent and much better than that of the comparisonalloys. High-Temperature Oxidation Behavior and Mechanism of The oxidation behavior of a new type of wrought NiFeCrAlsuperalloy has been investigated systematically in the temperature range of1100 to 1300°C. Results are compared with those of alloy 214, Inconel600, and GH 3030. It is shown that the oxidation resistance of the newsuperalloy is excellent and much better than that of the comparisonalloys.

High-Temperature Oxidation Behavior of Fe1Cr0.2Si Steel

In the case of Fe1Cr0.2Si steel, tube furnace oxidation was carried out for 120 min and 30 min. These studies, along with the high-temperature oxidation behavior of Fe1Cr0.2Si steel, were examined from 700 to 1100 °C. It has been observed that with an increase in the oxidation time, the oxidation weight gain per unit area of Fe–1Cr–0.2Si steel changed from a linear to Materials Free Full-Text Oxidation Behavior of FeAl Iron aluminides are still deeply investigated materials for their use in power plants, automotive and chemical industry, and other sectors. This paper shows that it is possible to strongly improve their oxidation behavior by the addition of silicon. The description of the synergic effect of aluminum and silicon on the oxidation behavior of Fe–Al–Si alloys at 800 °C in air is

Oxidation Behavior of Fe-36Ni and Fe-46Ni Alloy Scraps

Oxidation study of Fe-36Ni and Fe-46Ni alloys was conducted on the effect of temperature under a 0.2 atm oxygen partial pressure. The weight of both specimens was continuously measured by TGA (thermogravimetric apparatus) at various temperatures and it was found that the weigh was gained with an increase of temperature. The oxidation behavior of Fe-36/46Ni alloys was found to be followed by Oxidation Behavior of Fe-36Ni and Fe-46Ni Alloy Scraps The oxidation behavior of Fe-36/46Ni alloys was found to be followed by parabolic rate law and the rate constants were linearly proportional to the temperature.

Oxidation Behavior of Fe-Al, Fe-Si and Fe-Al-Si Intermetallics

Results showed that the oxidation of Fe-Al-Si ternary alloys provides an oxide layer based on aluminum oxide with a low concentration of iron and silicon. Below this oxide layer, there is a layer of silicides formed as a result of depletion by aluminum, which forms a secondary oxidation protection. Oxidation Behavior of Fe-Al, Fe-Si and Fe-Al-Si IntermetallicsThe description of the synergic effect of aluminum and silicon on the oxidation behavior of Fe-Al-Si alloys at 800 °C in air is presented. The oxidation rate, microstructure, phase, and chemical composition of these ternary alloys are compared with the binary Fe-Al and Fe-Si alloys.

Oxidation Behavior of Fe-Ni Alloy at High Temperature

Oxidation behavior of Fe-Ni alloys added by small amount of Ni was studied, when they were exposed rapidly up to 1100, 1150, and 1200, respectively. Gradient, which represents an oxidation rate, obtained from mass change curve was 1 or 2 till 20 seconds and it decreased to Oxidation Behavior of Fe-Ni Alloy at High TemperatureOxidation behavior of Fe-Ni alloys added by small amount of Ni was studied, when they were exposed rapidly up to 1100, 1150, and 1200, respectively. Gradient, which represents an oxidation rate, obtained from mass change curve was 1 or 2 till 20 seconds and it decreased to

Oxidation Behavior of Fe-based Amorphous Ribbons

The oxidation behavior of Fe-based amorphous ribbons was tested by annealing at 380 °C in air for different time with heat treatment furnace and analyzed by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The mechanism of oxides formation of the amorphous ribbons was discussed in detail. The results showed that the oxides were mostly B2O3, SiO2 and Fe2O3 or FeO. Oxidation Behavior of FeAl, FeSi and FeAlSi improve their oxidation behavior by the addition of silicon. The description of the synergic e ect of aluminum and silicon on the oxidation behavior of FeAlSi alloys at 800 C in air is presented. The oxidation rate, microstructure, phase, and chemical composition of these ternary alloys are compared with the binary FeAl and FeSi alloys.

Oxidation Behavior of FeAl, FeSi and FeAlSi

improve their oxidation behavior by the addition of silicon. The description of the synergic e ect of aluminum and silicon on the oxidation behavior of FeAlSi alloys at 800 C in air is presented. The oxidation rate, microstructure, phase, and chemical composition of these ternary alloys are compared with the binary FeAl and FeSi alloys. Oxidation Behavior of ODS Fe-Cr Alloys (Journal Article @article{osti_1003151, title = {Oxidation Behavior of ODS Fe-Cr Alloys}, author = {Pint, Bruce A and Wright, Ian G}, abstractNote = {Four experimental oxide dispersion strengthened (ODS)Fe-(13-14 at. %)Cr ferritic alloys were exposed for up to 10,000 hr at 700--1100 C in air and in air with 10vol.% water vapor. Their performance has been compared to other commercial ODS and stainless steel alloys.

Oxidation Behavior of ODS Fe-Cr Alloys (Journal Article

@article{osti_1003151, title = {Oxidation Behavior of ODS Fe-Cr Alloys}, author = {Pint, Bruce A and Wright, Ian G}, abstractNote = {Four experimental oxide dispersion strengthened (ODS)Fe-(13-14 at. %)Cr ferritic alloys were exposed for up to 10,000 hr at 700--1100 C in air and in air with 10vol.% water vapor. Their performance has been compared to other commercial ODS and stainless steel alloys. Oxidation Behavior of Tungsten in H2O2- and Fe ( NO3 ) 3 Dec 03, 2019 · Oxidation Behavior of Tungsten in H 2 O 2 - and Fe The oxidation and dissolution behaviors of tungsten have been investigated in the slurries containing different oxidants, , and , at pH 1.5. Both oxidants were effective for the formation of oxide layers on the tungsten surface.

Oxidation behavior of Fe-Cr-2Si alloys in high temperature

High-T steam oxidation of Fe-Cr-2Si alloys showed varied behavior with Cr content. Cr 2 O 3 and SiO 2 were observed in all Fe-Cr-2Si alloys at 1000 °C and below. Oxide volatility helps explain observed differences in corrosion mechanisms. Oxide spalling was observed on Fe-Cr-2Si alloys exposed to steam at 900 and above. Oxidation behavior of Fe16Cr alloy interconnect for SOFC Mar 15, 2004 · Nakagawa et al. have studied oxidation behavior of FeCr ferritic steals (2.1412.12 wt.%Cr) for a heat exchanger in steam power generation. The oxidation condition is the steam/steel/air environment. They measured the amount of hydrogen permeated through the samples from the steam side to the air side.

Oxidation behavior of FeAl+Hf, Zr, B SpringerLink

The oxidation behavior of Fe-40Al-1Hf, Fe-40Al-1Hf-0.4B, and Fe-40Al-0.1Zr-0.4B (at.%) alloys was characterized after 900°, 1000°, and 1100°C exposures. Isothermal tests revealed parabolic kinetics after a period of transitional -alumina scale growth. The parabolic growth rates for the subsequent -alumina scales were about five times higher than those for NiAl+O.1Zr alloys. Oxidation behavior of Nd-Fe-B magnets - NASA/ADSThis corrosion study was performed to determine the reaction kinetics of Nd-Fe-B type magnets in oxidizing environments. Thus the oxidation model developed provides basic information for the development of oxidation-resistant magnets. The oxidation of Nd-Fe-B magnets was studied at temperatures between 20 and 150 °C. The oxidation rates of the magnets were measured as

Oxidation behavior of NdFeB magnets:Journal of Applied

This corrosion study was performed to determine the reaction kinetics of NdFeB type magnets in oxidizing environments. Thus the oxidation model developed provides basic information for the development of oxidationresistant magnets. The oxidation of NdFeB magnets was studied at temperatures between 20 and 150 °C. The oxidation rates of the magnets were measured as Understanding the oxidation behavior of Fe/Ni/Cr and FeWe compared the systems by monitoring resistance to oxidation and found that it is highly dependent on the shell and alloy sequence as well as thickness, with thin Fe/Cr/Ni having the best stainless behavior. The CA-NP growth was monitored by TEM, and composition was assessed by XPS. Oxidation was quantified by both powder XRD and XPS.

Understanding the oxidation behavior of Fe/Ni/Cr and Fe/Cr

We compared the systems by monitoring resistance to oxidation and found that it is highly dependent on the shell and alloy sequence as well as thickness, with thin Fe/Cr/Ni having the best stainless behavior. The CA-NP growth was monitored by TEM, and composition was assessed by XPS. Oxidation was quantified by both powder XRD and XPS.

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