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Title: On the existence of declared 9R phase in Fe–Ni invar alloy

Abstract

An analysis of recently reported electron diffraction patterns suggests that metastable austenitic Fe–32Ni alloy subjected to α → γ transformation upon slow heating does not exhibit any signs of formation of the 9R phase; the conventional nanocrystalline γ phase with an fcc lattice is formed instead. Extended lamellae with a layered structure, erroneously identified as a new phase of the (3R + 9R) type in Fe–32Ni alloy, are conventional twinning (midrib) regions of each initial α crystal, in which γ-phase twin nanolamellae are formed upon heating.

Authors:
; ;  [1]
  1. Russian Academy of Sciences, Institute of Metal Physics, Ural Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22645442
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 61; Journal Issue: 4; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AUSTENITIC STEELS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRON DIFFRACTION; FCC LATTICES; INVAR; LAMELLAE; NANOSTRUCTURES; TWINNING

Citation Formats

Kabanova, I. G., Sagaradze, V. V., E-mail: vsagaradze@imp.uran.ru, and Kataeva, N. V. On the existence of declared 9R phase in Fe–Ni invar alloy. United States: N. p., 2016. Web. doi:10.1134/S1063774516040088.
Kabanova, I. G., Sagaradze, V. V., E-mail: vsagaradze@imp.uran.ru, & Kataeva, N. V. On the existence of declared 9R phase in Fe–Ni invar alloy. United States. doi:10.1134/S1063774516040088.
Kabanova, I. G., Sagaradze, V. V., E-mail: vsagaradze@imp.uran.ru, and Kataeva, N. V. Fri . "On the existence of declared 9R phase in Fe–Ni invar alloy". United States. doi:10.1134/S1063774516040088.
@article{osti_22645442,
title = {On the existence of declared 9R phase in Fe–Ni invar alloy},
author = {Kabanova, I. G. and Sagaradze, V. V., E-mail: vsagaradze@imp.uran.ru and Kataeva, N. V.},
abstractNote = {An analysis of recently reported electron diffraction patterns suggests that metastable austenitic Fe–32Ni alloy subjected to α → γ transformation upon slow heating does not exhibit any signs of formation of the 9R phase; the conventional nanocrystalline γ phase with an fcc lattice is formed instead. Extended lamellae with a layered structure, erroneously identified as a new phase of the (3R + 9R) type in Fe–32Ni alloy, are conventional twinning (midrib) regions of each initial α crystal, in which γ-phase twin nanolamellae are formed upon heating.},
doi = {10.1134/S1063774516040088},
journal = {Crystallography Reports},
number = 4,
volume = 61,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2016},
month = {Fri Jul 15 00:00:00 EDT 2016}
}