Formation of {omega}-phase in Zr-4 at.% Cr alloy

Journal Article · Tue Oct 01 04:00:00 EDT 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(96)00233-3· OSTI ID:382480

Dobromyslov, A V; Kazantseva, N V ^[1]

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1. Ural Div. of Russian Academy of Science, Ekaterinburg (Russian Federation). Inst. of Metal Physics

The {omega}-phase has been discovered in zirconium-base alloys with the transition metals of Period 4 of the Periodic Table only in Zr-V, Zr-Cr, and Zr-Cu alloys. The first mention about the {omega}-phase formation in Zr-Cr alloys was given for Zr-4.5 at.%. However, there were no experimental data that confirmed this fact. W.M. Rumball and F.G. Elder presented the X-ray results on the {omega}-phase formation in Zr-3.9 at.%Cr, but at the present time there are no electron microscope studies of the structure of the {omega}-phase in this system. Investigations of the features of the {omega}-phase formation, morphology of the {omega}-phase and the mechanism of its formation in the different zirconium-base alloys are necessary to establish the common features of the formation of structures with the metastable phases. The task of the present work is to study the conditions and features of the {omega}-phase formation in the Zr-Cr alloys and the effect of the eutectoid decomposition on the formation of {omega}-phase. This article is part of the detailed investigations of the feature and condition of the {omega}-phase formation in zirconium-base alloys with the transition metals of the groups I and V to VIII of the Periodic Table.

• OSTI ID: 382480
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 7 Vol. 35; ISSN XZ503X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
EUTECTOIDS
HEAT TREATMENTS
MELTING
MORPHOLOGY
OPTICAL MICROSCOPY
PHASE STUDIES
QUENCHING
ROLLING
SAMPLE PREPARATION
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
ZIRCONIUM BASE ALLOYS