High temperature oxidation resistance of Ti-5553 alloy with electro-deposited SiO2 coating

Xu, Shenghang; Lu, Tingting; Shen, Kaijie; Lan, Junjie; Hu, Bin; Zhang, Huibin; Tang, Yiping

doi:10.1016/j.matchemphys.2021.125306

Cited by 8 publications

(3 citation statements)

References 37 publications

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“…After 3000 h of constant temperature oxidation, the diffraction peaks of TiO 2 and Al 2 O 3 increase significantly, but there is no obvious diffraction peak of NiO and NiAl 2 O 4 , which confirms the analysis results of the constant temperature oxidation cross section morphology at 700 ℃. After 3000 h, there is a complete Al 2 O 3 film at the interface between the coating and the substrate, and no complete and continuous Cr 2 O 3 is observed, because the equilibrium oxygen partial pressure required for the generation of Al 2 O 3 is lower than that of Cr 2 O 3 and TiO 2 [11] , and the activity of oxygen required for the generation of Al 2 O 3 during the oxidation process is smaller than that required for the generation of Cr Figure 9 shows the schematic diagram of the oxidation products after constant temperature oxidation at 700 ℃ for 3000 h. Although the constant temperature oxidation coating dissolves and forms gaps at 700 ℃ as shown in Figure 7(b,c,d), the coating can still act as a good barrier. Only a small size of O 2can diffuse through the gaps in the coating to the matrix interface and react with alloying elements to form a complete oxide film.…”

Section: High Temperature Oxidation Behavior Of Graphene-modified Sil...mentioning

confidence: 99%

Oxidation and Corrosion Resistance of Graphene-modified Silicon Oxide Coating

Liu

Xiao

2023

J. Phys.: Conf. Ser.

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The thermal corrosion resistance of nickel-based GH4413 alloy at the service temperature of 660 °C and the oxidation behavior at 600–700 °C after graphene modified silicon coating were studied. The morphologies and types of corrosion and oxidation products after thermal salt corrosion and constant temperature oxidation were analyzed by scanning electron microscopy, energy spectrum, X-ray diffraction, and X-ray photo electron spectroscopy. The resistance of thermal corrosion and oxidation of graphene-modified silicon coating was evaluated. The results show that compared with the uncoated sample, the weight loss during thermal corrosion of the coated sample at 660 °C is lower than that of the uncoated sample. The coating partially peels off after salt corrosion up to 500 h at 660 °C. The O element diffuses into the matrix to form fine oxides, and the coating still plays a protective role on the matrix. After oxidation at 600–700 °C to 3000 h, the dense layer of Al2O3 and TiO2 and a small amount of Cr2O3 appear at the interface between the coating and the matrix without loose harmful oxidation product. The addition of graphene reduces the chemical activity of the silicon coating and makes the coating denser. Therefore, the GH4413 alloy after the graphene-modified coating has excellent resistance to thermal corrosion and oxidation at its service temperature.

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Section: High Temperature Oxidation Behavior Of Graphene-modified Sil...mentioning

confidence: 99%

Oxidation and Corrosion Resistance of Graphene-modified Silicon Oxide Coating

Liu

Xiao

2023

J. Phys.: Conf. Ser.

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“…With low density and high melting temperature, Ti element is often added to RHEA mainly to improve the high-temperature mechanical properties by solid solution strengthening and grain boundary strengthening. Furthermore, the addition of Ti ameliorates their oxidation resistance due to the formation of a protective oxide scale containing TiO 2 , similar to that containing Al 2 O 3 [11]. Al alloying also promotes the formation of ordered B2 phase and therefore increases the strength of RHEA at elevated temperatures [12].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of refractory high entropy alloys containing Si and Cr

Zhang

2023

Materials Science and Technology

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Mo0.5NbHf0.5ZrTiAl, Mo0.5NbHf0.5ZrTiSi0.5Al and Mo0.5NbHf0.5CrZrTiAl (molar ratio) refractory high entropy alloys (RHEA) were prepared by vacuum arc melting. The influences of Si and Cr on microstructure and properties of RHEA were investigated. Three RHEA all contain BCC1 phase. Si addition promotes the formation of M5Si3 intermetallic compound, and the microstructure of Si0.5Cr0 RHEA consists of M5Si3 blocks and BCC1 + M5Si3 eutectics. Cr addition leads to the formation of Cr2Nb type Laves phase, and two BCC dendrites exist in Si0Cr RHEA. The compressive strength of Si0.5Cr0 and Si0Cr RHEA increased by about 102% and 85%, respectively, compared to Si0Cr0 one. The oxidation resistance of RHEA is improved by adding Si while dramatically degraded by adding Cr.

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“…AlPO 4 ceramic, with many excellent properties such as a high melting point (above 1773 K), strong self-healing ability, low Young’s modulus, and low oxygen permeability is usually an ideal high-temperature anti-oxidation coating material for many ceramic composites [ 20 , 21 ]. With the lowest low oxygen permeability in various oxide ceramics, SiO 2 ceramic also shows its advantage in the field of anti-oxidation coating [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of SiO2 + SiC + Al (H2PO4)3 Coating on Mechanical and Dielectric Properties for SiCf/MWCNTS/AlPO4 Composites

et al. 2022

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SiC fiber-reinforced AlPO4 matrix (SiCf/MWCNTs/AlPO4) composites were fabricated using a hot laminating process with multi-walled carbon nanotubes (MWCNTs) as the absorber. A coating prepared from SiO2 + SiC + Al (H2PO4)3 was applied to the surface of the SiCf/MWCNTs/AlPO4 composites prior to an anti-oxidation test at 1273 K in air for 40 h. The anti-oxidation effect was verified by a three-point bending test, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and a dielectric property test. Anti-oxidation mechanism investigations revealed that the coating effectiveness could be attributed to three substances, i.e., SiO2, SiP2O7, and SiO2 + AlPO4 solid solution from the reactions of SiC + O2→SiO2 + CO, SiO2 + P2O5→SiP2O7 and SiO2 + AlPO4→solid solution, respectively.

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High temperature oxidation resistance of Ti-5553 alloy with electro-deposited SiO2 coating

Cited by 8 publications

References 37 publications

Oxidation and Corrosion Resistance of Graphene-modified Silicon Oxide Coating

Oxidation and Corrosion Resistance of Graphene-modified Silicon Oxide Coating

Microstructure and properties of refractory high entropy alloys containing Si and Cr

The Influence of SiO2 + SiC + Al (H2PO4)3 Coating on Mechanical and Dielectric Properties for SiCf/MWCNTS/AlPO4 Composites

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