Oxidation behavior of welded Zry-3, Zry-4, and Zr–1Nb tubes

Vandegrift, Jordan; Parga, Clemente; Coryell, Ben; Butt, Darryl P.; Jaques, Brian J.

doi:10.1016/j.nme.2019.100714

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…It is well known [19] that welded material has three typical regions such as weld (WZ), heat-affected (HAZ), and bulk zones. Vandegrift J. et al showed accelerated oxidation of Zry-3, Zry-4, and Zr-1Nb tubes in WZ as larger grains were found in comparison with HAZ and bulk regions [20]. Fast solidification of welded Zr alloys can result in forming columnar microstructure and saturation of dopants in the β-Zr phase leading to decrease corrosion resistance of welds [15,21].…”

Section: Introductionmentioning

confidence: 99%

Oxidation and Mechanical Behavior of Cr-Coated Laser Beam Welds Made from E110 Zirconium Alloy

et al. 2022

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This article describes the oxidation resistance of laser beam welds made from E110 zirconium alloy with a chromium coating obtained using multi-cathode magnetron sputtering. Oxidation tests of the welded Zr alloy without and with Cr coating were performed in an air atmosphere at 1100 °C for 2–90 min. Then, analysis of their cross-section microstructure in different regions (weld, heat-affected, and bulk zones) was done using optical microscopy. Hardness measurements and three-point bending tests demonstrated the hardening of the Cr-coated welded Zr alloy after the oxidation that is discussed in the article. Brittle fracture behavior was observed for uncoated Zr weld even after a short period of high-temperature oxidation.

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Section: Introductionmentioning

confidence: 99%

Oxidation and Mechanical Behavior of Cr-Coated Laser Beam Welds Made from E110 Zirconium Alloy

et al. 2022

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“…Therefore, the special attention of ATF development should be devoted to estimate oxidation behavior of Zr-based alloy welds especially in the loss of coolant accident conditions (LOCA). Oxidation tests of EBW, LBW, TIG and RUW welds of Zr-based alloys were studied in several works [12][13][14][15][16][17]. Vandegrift et al concluded the most protective behavior of EBW welds of Zr-1Nb alloy in comparison with TIG welds and/or made from Zircaloys (Zry-3 and Zry-4) at HT isothermal and transient conditions in both dry and humid air [12].…”

Section: Introductionmentioning

confidence: 99%

“…Oxidation tests of EBW, LBW, TIG and RUW welds of Zr-based alloys were studied in several works [12][13][14][15][16][17]. Vandegrift et al concluded the most protective behavior of EBW welds of Zr-1Nb alloy in comparison with TIG welds and/or made from Zircaloys (Zry-3 and Zry-4) at HT isothermal and transient conditions in both dry and humid air [12]. Laser processing of Zr-based alloys usually reduces their corrosion resistance in autoclave tests [14,16,18].…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Oxidation of Cr-Coated Resistance Upset Welds Made from E110 Alloy

2021

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The resistance upset welds (RUW) made from E110 alloy without and with Cr coatings were oxidized in air atmosphere at 1100 °C for 2, 10 and 30 min. The cross-section microstructure, elemental composition and hardness were studied before and after oxidation using optical and scanning electron microscopy, and indentations in welding region. The RUW welding does not noticeably change oxidation kinetics of E110 alloy. The most crucial effect has surface non-regularities formed after welding, which prevent uniform coating deposition on full surface of welded cladding tube and end plug. Cr coating deposition can strongly reduce oxidation of welded E110 alloy, while additional post-processing treatment should be applied to improve surface morphology after RUW welding. Several suggestions favorable to development of ATF Zr-based claddings using Cr coating deposition on welded nuclear rods were discussed.

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Enhancing wear resistance and biocompatibility of medical ZrNb alloy used for artificial joint via femtosecond laser surface processing combined with thermal oxidation

Xia,

Liang,

Zhang

et al. 2025

Surface and Coatings Technology

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Oxidation behavior of welded Zry-3, Zry-4, and Zr–1Nb tubes

Cited by 5 publications

References 18 publications

Oxidation and Mechanical Behavior of Cr-Coated Laser Beam Welds Made from E110 Zirconium Alloy

Oxidation and Mechanical Behavior of Cr-Coated Laser Beam Welds Made from E110 Zirconium Alloy

High-Temperature Oxidation of Cr-Coated Resistance Upset Welds Made from E110 Alloy

Enhancing wear resistance and biocompatibility of medical ZrNb alloy used for artificial joint via femtosecond laser surface processing combined with thermal oxidation

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