Oxidation Behavior of Zr–1Nb Corroded in Air at 400 °C after Plasma Immersion Titanium Implantation

Obrosov, Aleksei; Sutygina, Alina; Manakhov, Anton; Bolz, Sebastian; Weiß, Sabine; Kashkarov, Egor

doi:10.3390/met8010027

Cited by 11 publications

(5 citation statements)

References 53 publications

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“…Among the properties of the Zr alloys, corrosion resistance has been considered as one of the most important properties that limit the performance and safety of nuclear reactors [15][16][17]. When the Zr alloys are applied to a working environment (such as in an aqueous solution at high temperature and high pressure in pressurized water reactors), the Zr matrix reacts with H 2 O to form a protective oxide film against the ingression of oxidizing species.…”

Section: Introductionmentioning

confidence: 99%

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Chen

Sang

Zhang

et al. 2018

Metals

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Homogeneous distribution of fine second-phase particles (SPPs) fabricated by cycles of deformation and annealing in zirconium alloys is a critical consideration for the corrosion resistance of fuel claddings. Different deformation degrees of zirconium alloys would result in distinctive microstructures, leading to a distinct growth of SPPs during subsequent annealing. Unfortunately, the homogenization and growth behavior of SPPs in deformed zirconium alloys have not been well studied. In this work, a β-quenched Zr–Sn–Nb–Fe–Cu–Si–O alloy was rolled and annealed at 580 °C or 680 °C. The morphologies, distributions, and sizes of SPPs resulting from the different processing procedures were investigated. A linear distribution of SPPs is found in the β-quenched sample. Afterward, SPPs grow and are randomly distributed during heat treatment as the deformation degree or annealing time (or temperature) increases. The homogenization and growth of SPPs are attributed to the Ostwald ripening mechanism that is governed by lattice diffusion and short-circuit diffusion. The sample with a higher deformation degree is speculated to have a larger number of defects that provide more shortcuts for the mass transfer of SPPs, thereby facilitating a homogeneous distribution of fine SPPs during annealing.

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Section: Introductionmentioning

confidence: 99%

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Chen

Sang

Zhang

et al. 2018

Metals

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“…The occurrence of the shoulder can be explained by defects in some crystal lattices of different zirconium compounds [39]. As with Ti, the O1s XPS spectra of Zr coatings are represented by two peaks (Figure 4, fourth column), one of which corresponds to the Zr-O bond (529.1-529.5 eV) [40], indicating the presence of ZrO 2 on the surface, and the second peak corresponds to C-O/C=O bonds (531.0-531.3 eV). At the same time, no significant changes in the chemical structure depending on the thickness of the coatings on the PEEK samples were observed.…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 98%

Polyether Ether Ketone Coated with Ultra-Thin Films of Titanium Oxide and Zirconium Oxide Fabricated by DC Magnetron Sputtering for Biomedical Application

et al. 2022

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Recently, polyether ether ketone has raised increasing interest in research and industry as an alternative material for bone implants. This polymer also has some shortcomings, as it is bioinert and its surface is relatively hydrophobic, causing poor cell adhesion and therefore slow integration with bone tissue. In order to improve biocompatibility, the surface of polyether ether ketone-based implants should be modified. Therefore, polished disc-shaped polyether ether ketone samples were surface-modified by direct current magnetron sputtering with ultrathin titanium and zirconium coatings (thickness < 100 nm). The investigation results show a uniform distribution of both types of coatings on the sample surfaces, where the coatings mostly consist of titanium dioxide and zirconium dioxide. Differential scanning calorimetry revealed that the crystalline structure of the polyether ether ketone substrates was not changed by the coating deposition. Both coatings are amorphous, as shown by X-ray diffraction investigations. The roughness of both coating types increases with increasing coating thickness, which is beneficial for cell colonization. The coatings presented and investigated in this study improve wettability, increasing surface energies, in particular the polar component of the surface energies, which, in turn, are important for cell adhesion.

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“…The corrosion resistance of Zr alloys is also related to the surface properties of alloys. The paper by Obrosov et al [2] used plasma immersion ion implantation to modify the surface properties of Zr-1Nb alloy, and studies the influence of Ti implantation on surface morphology, oxidation rate, and phase structure of Zr-1Nb alloy. Pellet-cladding interaction can lead to the accelerated failure of fuel channels systems in nuclear reactors.…”

Section: Contributionsmentioning

confidence: 99%

Improvement and Application of Zirconium Alloys

Qin¹

2018

Metals

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Oxidation Behavior of Zr–1Nb Corroded in Air at 400 °C after Plasma Immersion Titanium Implantation

Cited by 11 publications

References 53 publications

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Polyether Ether Ketone Coated with Ultra-Thin Films of Titanium Oxide and Zirconium Oxide Fabricated by DC Magnetron Sputtering for Biomedical Application

Improvement and Application of Zirconium Alloys

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