Hydrogenation Behavior of Cr-Coated Resistance Upset Welds of E110 Zirconium Alloy
| Parent link: | Coatings Vol. 13, iss. 2.— 2023.— [339, 10 p.] |
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| Corporate Authors: | , |
| Other Authors: | , , , , |
| Summary: | Title screen The hydrogenation behavior of Cr-coated resistance upset welds (RUW) of E110 zirconium alloy was investigated at 360, 450 and 900 °C and a hydrogen pressure of 2 bar. The deposition of Cr coating, via magnetron sputtering, can decrease the hydrogen absorption rate of an RUW Zr alloy. The activation energy for the hydrogen absorption of Cr-coated specimens (84 kJ/mol) is higher in comparison with uncoated ones (71 kJ/mol), which indicates the deceleration of the hydriding of welded Zr alloys in the case of Cr coating deposition. A Cr coating can limit the formation of radially oriented hydrides and the hardening of RUW specimens at 360 and 450 °C. No significant difference in the hydrogen absorption rate was found at 900 °C. The application of Cr coating deposition to protect resistance-upset-welded Zr alloys in a hydrogen atmosphere is discussed. |
| Published: |
2023
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| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/74794 https://doi.org/10.3390/coatings13020339 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669056 |