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Metallographic Study of the Isothermal Transformation of Beta Phase in Zircaloy-2

Abstract

Observations of the structure of commercial zircaloy-2 have been made in the microscope showing that the high temperature beta phase is transformed isothermally at lower temperatures into alpha plus secondary precipitate. The alpha occurs mainly as Widmanstaetten plates developed by a shear mechanism. The secondary precipitate is formed from the beta - alpha structure at the phase boundary between these phases. This precipitation of particles of secondary phase occurs on account of a eutectoid reaction, alpha also being formed. A time-temperature transformation diagram has been constructed from the observations.
Authors:
Publication Date:
Jun 15, 1960
Product Type:
Technical Report
Report Number:
AE-30
Resource Relation:
Other Information: 29 refs., 27 figs.
Subject:
36 MATERIALS SCIENCE; ZIRCALOY 2; METALLOGRAPHY; ISOTHERMAL PROCESSES; EUTECTOIDS
OSTI ID:
20923615
Research Organizations:
AB Atomenergi, Stockholm (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708169
Availability:
Commercial reproduction prohibited; OSTI as DE20923615
Submitting Site:
SWDN
Size:
55 pages
Announcement Date:
Sep 27, 2007

Citation Formats

Oestberg, G. Metallographic Study of the Isothermal Transformation of Beta Phase in Zircaloy-2. Sweden: N. p., 1960. Web.
Oestberg, G. Metallographic Study of the Isothermal Transformation of Beta Phase in Zircaloy-2. Sweden.
Oestberg, G. 1960. "Metallographic Study of the Isothermal Transformation of Beta Phase in Zircaloy-2." Sweden.
@misc{etde_20923615,
title = {Metallographic Study of the Isothermal Transformation of Beta Phase in Zircaloy-2}
author = {Oestberg, G}
abstractNote = {Observations of the structure of commercial zircaloy-2 have been made in the microscope showing that the high temperature beta phase is transformed isothermally at lower temperatures into alpha plus secondary precipitate. The alpha occurs mainly as Widmanstaetten plates developed by a shear mechanism. The secondary precipitate is formed from the beta - alpha structure at the phase boundary between these phases. This precipitation of particles of secondary phase occurs on account of a eutectoid reaction, alpha also being formed. A time-temperature transformation diagram has been constructed from the observations.}
place = {Sweden}
year = {1960}
month = {Jun}
}