Oxidation behavior of FeCrAl coated Zry-4 under high temperature steam environment

Han, Xiaochun; Wang, Yu; Peng, Shuming; Zhang, Haibin

doi:10.1016/j.corsci.2019.01.004

Cited by 88 publications

(14 citation statements)

References 20 publications

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“…Compared with other ATF candidate claddings, the coated Zr alloy is the easiest and most economic approach, which is supposed to the near-term choice for ATF cladding application. Some coating materials have been investigated, including pure metals [17][18][19][20] , alloys [21][22][23] , ceramics 24,25 , and MAX phases 8,26 , among which, the metallic Cr coatings exhibit good resistance to oxidation in both normal condition and accident condition (e.g., LOCA) 6,[17][18][19][20] . This has boosted extensive studies on the Cr-coated Zr alloy cladding during the last decade.…”

Section: Introductionmentioning

confidence: 99%

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

et al. 2021

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Dense, uniform, and well-adhered chromium (Cr) coatings were deposited on zirconium (Zr) alloy claddings by using physical vapor deposition (PVD). The Cr-coated samples were tested at 1200 oC and 1300 oC, respectively, for different exposure time in water steam environment. Microstructures and compositions of the coating/substrate system after oxidation were characterized by X-ray diffraction, scanning electronic microscopy, and energy dispersion spectrometer. The microstructural results clearly demonstrated that Cr2O3 layer has been produced on the coating surface, acting as an oxygen diffusion barrier and concomitantly reducing the oxidation rate. The experimental results on weight gains soundly supported the microstructural findings that the Cr coatings could protect the Zr substrate from high-temperature steam oxidation, even at a temperature up to 1300 oC. Finally, the oxidation kinetics was theoretically analyzed and the underlying oxidation mechanism was also clarified.

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Section: Introductionmentioning

confidence: 99%

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

et al. 2021

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“…Generally, the introduction of aluminum into ferritic alloys may lead to better resistance to potential heavy liquid metal corrosion, thanks to the formation of protective alumina [ 9 , 10 , 11 , 12 , 13 , 14 ]. Due to their excellent properties, such as low cost, heat resistance and corrosion resistance, FeCrAl alloys have a wide range of applications under conditions of high temperature and they require a high level of corrosion resistance [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of TIG and Laser Welding Processes of Fe-10Cr-4Al-RE Alloy Cracks Overlayed on 316L Steel Plate

Liu

et al. 2022

Materials

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In this paper, the possibility of applying different welding strategies to overlay an FeCrAl layer against corrosion from heavy liquid metal on a plain plate made of 316L austenitic stainless steel was investigated. This technology could be used in manufacturing the main vessel of CiADS, which may be considered as a more economic and feasible solution than production with the corrosion-resistant FeCrAl alloy directly. The main operational parameters of the laser welding process, including laser power, weld wire feeding speed, diameter of the welding wire, etc., were adjusted correspondingly to the optimized mechanical properties of the welded plate. After performing the standard nuclear-grade bending tests, it can be preliminarily confirmed that the low-power pulse laser with specific operational parameters and an enhanced cooling strategy will be suitable to surface an Fe-10Cr-4Al-RE layer with a thickness of approximately 1 mm on a 40 mm-thick 316L stainless steel plate, thanks to the upgraded mechanical properties incurred by refined grains with a maximum size of around 300 μm in the welded layer.

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“…Surface‐modified Zr‐based alloys are regarded as promising materials to expand the ATF concept 4 . Numerous coatings systems have been developed, including metallic Cr 5,6 and FeCrAl coatings, 7,8 SiC coatings, 9 TiN coatings, 10,11 CrN coatings, 12 and MAX phase coatings 13…”

Section: Introductionmentioning

confidence: 99%

Thermal stability and performance of optimized ZrC_x diffusion barriers in ceramic coating systems for ATF applications

Chen

Lei

et al. 2021

J Am Ceram Soc

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Nuclear power plays an important role in providing reliable and environmentally affordable energy. 1 In a light water reactor (LWR), the typical power densities in the nuclear cores are ~50-75 MWth m −3 , which makes the systems susceptible to severe accidents. 2 The accident-tolerant fuel (ATF) system aims to improve the safety margins of LWRs by enhancing the steam oxidation resistance of the cladding and reducing hydrogen generation. 3 Surface-modified Zrbased alloys are regarded as promising materials to expand the ATF concept. 4 Numerous coatings systems have been developed, including metallic Cr 5,6 and FeCrAl coatings, 7,8 SiC coatings, 9 TiN coatings, 10,11 CrN coatings, 12 and MAX phase coatings. 13

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Oxidation behavior of FeCrAl coated Zry-4 under high temperature steam environment

Cited by 88 publications

References 20 publications

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

Influence of TIG and Laser Welding Processes of Fe-10Cr-4Al-RE Alloy Cracks Overlayed on 316L Steel Plate

Thermal stability and performance of optimized ZrC_x diffusion barriers in ceramic coating systems for ATF applications

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Oxidation behavior of FeCrAl coated Zry-4 under high temperature steam environment

Cited by 88 publications

References 20 publications

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

Oxidation behavior of Cr-coated zirconium alloy cladding in high-temperature steam above 1200 °C

Influence of TIG and Laser Welding Processes of Fe-10Cr-4Al-RE Alloy Cracks Overlayed on 316L Steel Plate

Thermal stability and performance of optimized ZrCx diffusion barriers in ceramic coating systems for ATF applications

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Thermal stability and performance of optimized ZrC_x diffusion barriers in ceramic coating systems for ATF applications