Oxidation protection of tungsten alloys for nuclear fusion applications: A comprehensive review

Fu, Tao; Cui, Kunkun; Zhang, Yingyi; Wang, Jie; Shen, Fuqiang; Yu, Laihao; Qie, Junmao; zhang, Xu

doi:10.1016/j.jallcom.2021.161057

Cited by 89 publications

(28 citation statements)

References 82 publications

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“…The maximum temperature occurred on the outer surface of the tube, while the temperature on the inner surface was about 350

less. However, regarding welding, a uniform temperature over the thickness of the tube would be ideal [ 30 , 44 ]. The temperature distribution in the tube cross section is shown in Figure 9 b at the position where the squeeze rolls contact the tube.…”

Section: Results and Discussionmentioning

confidence: 99%

Numerical Simulation of Tube Manufacturing Consisting of Roll Forming and High-Frequency Induction Welding

et al. 2022

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This paper presents a fully coupled three-dimensional finite element model for the simulation of a tube manufacturing process consisting of roll forming and high-frequency induction welding. The multiphysics model is based on the dual mesh method. Thus, the electromagnetic field, the temperature field, the elasto-plastic deformation of the weld bead, and the phase transformations within the material can be simulated for a moving tube without remeshing. A comparison with measurements shows that the geometry of the welded tube and the weld bead, the force on the squeeze rolls, the temperature along the band edges, and the hardness distribution within the heat-affected zone can be simulated realistically.

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“…The maximum temperature occurred on the outer surface of the tube, while the temperature on the inner surface was about 350

Section: Results and Discussionmentioning

confidence: 99%

Numerical Simulation of Tube Manufacturing Consisting of Roll Forming and High-Frequency Induction Welding

et al. 2022

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“…It's well known that the increase of oxide layer thickness is primarily caused by the internal diffusion of O 2 [49][50][51][52], and studies have shown that alloying with active elements can effectively reduce the internal diffusion rate of O 2 [53][54][55]. For example, appropriate adding rare earth elements, on the one hand, can separate oxygen atoms at the metal-oxide interfaces and oxide scale grain boundaries and react with O 2 , thus hindering the diffusion of O 2 [56][57][58][59].…”

Section: Effects Of Rare Earth Elements On Oxidation Behaviormentioning

confidence: 99%

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

Wang

et al. 2021

Coatings

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Traditional refractory materials such as nickel-based superalloys have been gradually unable to meet the performance requirements of advanced materials. The Mo-Si-based alloy, as a new type of high temperature structural material, has entered the vision of researchers due to its charming high temperature performance characteristics. However, its easy oxidation and even “pesting oxidation” at medium temperatures limit its further applications. In order to solve this problem, researchers have conducted large numbers of experiments and made breakthrough achievements. Based on these research results, the effects of rare earth elements like La, Hf, Ce and Y on the microstructure and oxidation behavior of Mo-Si-based alloys were systematically reviewed in the current work. Meanwhile, this paper also provided an analysis about the strengthening mechanism of rare earth elements on the oxidation behavior for Mo-Si-based alloys after discussing the oxidation process. It is shown that adding rare earth elements, on the one hand, can optimize the microstructure of the alloy, thus promoting the rapid formation of protective SiO2 scale. On the other hand, it can act as a diffusion barrier by producing stable rare earth oxides or additional protective films, which significantly enhances the oxidation resistance of the alloy. Furthermore, the research focus about the oxidation protection of Mo-Si-based alloys in the future was prospected to expand the application field.

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“…As an important physical vapor deposition technology, magnetron sputtering technology is also widely used in metal surface coating [28]. In addition, the molten salt and laser cladding technologies are also mentioned [29][30][31][32][33][34][35][36][37][38][39]. The composition, structure and oxidation characteristics of all kinds of coatings have been given in relevant figures and tables [40].…”

Section: Introductionmentioning

confidence: 99%

Oxidation Protection of High-Temperature Coatings on the Surface of Mo-Based Alloys—A Review

Shen

Zhang

et al. 2022

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Molybdenum and its alloys, with high melting points, excellent corrosion resistance and high temperature creep resistance, are a vital high-temperature structural material. However, the poor oxidation resistance at high temperatures is a major barrier to their application. This work provides a summary of surface modification techniques for Mo and its alloys under high-temperature aerobic conditions of nearly half a century, including slurry sintering technology, plasma spraying technology, chemical vapor deposition technology, and liquid phase deposition technology. The microstructure and oxidation behavior of various coatings were analyzed. The advantages and disadvantages of various processes were compared, and the key measures to improve oxidation resistance of coatings were also outlined. The future research direction in this field is set out.

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Oxidation protection of tungsten alloys for nuclear fusion applications: A comprehensive review

Cited by 89 publications

References 82 publications

Numerical Simulation of Tube Manufacturing Consisting of Roll Forming and High-Frequency Induction Welding

Numerical Simulation of Tube Manufacturing Consisting of Roll Forming and High-Frequency Induction Welding

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

Oxidation Protection of High-Temperature Coatings on the Surface of Mo-Based Alloys—A Review

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