Ferritic Decomposition in Fe–36Ni–3Cr Invar Alloy

V. V. Sagaradze; N. V. Kataeva; V. A. Zavalishin; A. V. Litvinov; M. F. Klyukina

doi:10.1134/S0031918X19100119

Ferritic Decomposition in Fe–36Ni–3Cr Invar Alloy

Authors: Sagaradze V.V.¹^,2, Kataeva N.V.¹, Zavalishin V.A.¹, Litvinov A.V.¹, Klyukina M.F.¹
Affiliations:
1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
2. Ural Federal University Named after the First President of Russia B.N. Yeltsin
Issue: Vol 120, No 10 (2019)
Pages: 956-961
Section: Structure, Phase Transformations, and Diffusion
URL: https://journals.rcsi.science/0031-918X/article/view/168741
DOI: https://doi.org/10.1134/S0031918X19100119
ID: 168741

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Abstract
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Abstract

Nickel redistribution and austenite decomposition into ferrite with the formation of up to 15% α‑ferrite crystals 10–100 nm in size in a fairly stable Fe–36Ni–3Cr invar alloy were found. The austenite decomposition during heating in a 250–400°C temperature range is intensified by preliminary strong plastic deformation by rolling or shearing under high pressure.

Keywords

austenitic alloy, ferrite, magnetic transformation, deformation, nickel segregation, electron microscopy, magnetometry

About the authors

V. V. Sagaradze

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin

Author for correspondence.
Email: vsagaradze@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002