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A. L. Nikolaev

SHORT-RANGE ORDER IN Fe-Cr ALLOYS IRRADIATED WITH ELECTRONS AT LOW TEMPERATURES AND Cr SOLUBILITY IN α-IRON NEAR 270 K

DOI: 10.17804/2410-9908.2021.6.006-018

Chromium has limited solubility in a-iron. It is shown that unsaturated Fe-Cr alloys should demonstrate short-range ordering (i.e. tendency to neighboring of Fe and Cr atoms). The type of short-range ordering in several Fe-Cr alloys is revealed from the data on the recovery of residual electrical resistivity after low temperature electron irradiation at sufficiently low temperatures. The combined consideration of the data on short-range ordering and chromium solubility at 570 K (Scr. Mater. 2014 v. 74, p. 48 and ibid 2016 v. 122, p. 31) gives the confidence interval for the solubility limit near 270 K equal to 8.8±0.4 at. % Cr.

Acknowledgments: The research was carried out under a state assignment from the Ministry of Science and Higher Education of the Russian Federation (theme Function, No. AAAA-A19-119012990095-0).

Keywords: Fe-Cr alloys, Cr solubility limit in α-iron, electron irradiation, recovery of residual electrical resistivity, short-range ordering

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Article reference

Nikolaev A. L. Short-Range Order in Fe-Cr Alloys Irradiated with Electrons at Low Temperatures and Cr Solubility in α-Iron near 270 K // Diagnostics, Resource and Mechanics of materials and structures. - 2021. - Iss. 6. - P. 6-18. -
DOI: 10.17804/2410-9908.2021.6.006-018. -
URL: http://eng.dream-journal.org/issues/content/article_346.html
(accessed: 10/11/2024).

 

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