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Title: Zr inclusions in actinide–Zr alloys: New data and ideas about how they form

High-Zr inclusions are common in actinide–Zr alloys despite phase diagrams indicating that these alloys should not contain a high-Zr phase. The inclusions may contain enough Zr to cause significant differences between bulk compositions and those of inclusion-free areas, leading to possible errors in interpreting data if the inclusions are not considered. This paper presents data from high-Zr inclusions in a complex U–Np–Pu–Am–Zr–RE alloy. It is suggested that the high-Zr inclusions nucleated as high-Zr solid solutions at interfaces with high-actinide RE liquids, then unmixed to form nanometer-scale high-actinide sub-inclusions.
Authors:
 [1] ;  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
OSTI Identifier:
1178057
Report Number(s):
INL/JOU--14-32073
Journal ID: ISSN 0022-3115; TRN: US1500190
DOE Contract Number:
AC07-05ID14517
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Nuclear Materials; Journal Volume: 460; Journal Issue: C
Publisher:
Elsevier
Research Org:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ZIRCONIUM; INCLUSIONS; SOLID SOLUTIONS; ZIRCONIUM ALLOYS; URANIUM ALLOYS; NEPTUNIUM ALLOYS; PLUTONIUM ALLOYS; AMERICIUM ALLOYS; RARE ERTH ALLOYS; PHASE STUDIES; LIQUIDS; ERRORS; INTERFACES ELECTRON MICROSCOPY; FCRD; MICROSTRUCTURES; NUCLEAR FUELS; TRANSURANIC ELEMENTS; ZIRCONIUM