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Inversion of the Sign of the Short-Range Order as a Function of the Composition of Fe–Cr Alloys at Warm Severe Plastic Deformation and Electron Irradiation

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108 Ekaterinburg, Russia
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Metals 2020, 10(5), 659; https://doi.org/10.3390/met10050659
Received: 28 April 2020 / Revised: 14 May 2020 / Accepted: 15 May 2020 / Published: 19 May 2020
This paper presents the results of a Mössbauer spectroscopy investigation of the processes in the binary alloys Fe100−cCrc (c, at. % = 6.0, 9.4, 13.2) and of the short-range (SR) atomic ordering accelerated by applying warm severe plastic deformation via high pressure torsion (HPT). After warm HPT treatment, in the vicinity of the concentration c = 9 at. %, there was revealed to be an inversion of the sign of the SR order, the anomaly of the formation of a Fe–Cr solid solution, which was predicted ab initio and is observed at long-term anneals and exposures to irradiation by electrons. The acceleration of the SR ordering at HPT is due to the continuous generation and a large number density of mobile point defects. View Full-Text
Keywords: Fe–Cr alloys; severe plastic deformation; electron irradiation; short-range ordering; point defects; Mössbauer spectroscopy Fe–Cr alloys; severe plastic deformation; electron irradiation; short-range ordering; point defects; Mössbauer spectroscopy
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MDPI and ACS Style

Kozlov, K.; Shabashov, V.; Zamatovskii, A.; Novikov, E.; Ustyugov, Y. Inversion of the Sign of the Short-Range Order as a Function of the Composition of Fe–Cr Alloys at Warm Severe Plastic Deformation and Electron Irradiation. Metals 2020, 10, 659.

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