$alpha$-GRAIN REFINING AND METALLURGICAL STUDY OF ALLOYED URANIUM, SICRAL F1, USED FOR FUEL ELEMENTS.

Technical Report · Tue Jul 01 00:00:00 EDT 1969

OSTI ID:4151629

Magnier, P

This study was made to know more about grain refining in low alloyed uranium of composition not very different from SICRAL F 1. Alpha grain refining of fuel elements made of these alloys was studied after casting and quenching by the methods used for mass production. The author describes the effect: - of the metallurgical history before quenching: - casting - purity - rate of solidification - of quenching parameters: - annealing temperature before quenching - annealing time - quenching rate - of the composition of the alloy. For the graphite gas fuel elements of various dimensions, he suggests some modifications to give a better adaptation of fabrication to size. He describes the grain refining made during quenching and the {beta} -> {alpha} and {gamma} -> {alpha} transformation types. He proposes the use of a U-Fe-Si especially useful from the point of view of grain refining. (author)

• Research Organization: Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
• NSA Number: NSA-24-017223
• OSTI ID: 4151629
• Report Number(s): CEA-R-3905
• Resource Relation: Other Information: UNCL. Orig. Receipt Date: 31-DEC-70
• Country of Publication: France
• Language: French

Related Subjects

N30120* -Metals
Ceramics
& Other Materials-Metals & Alloys-Preparation & Fabrication
N38700 -Reactor Components
Fuels & Accessories
FUELS
GRAIN SIZE
IRON ALLOYS
PREPARATION
REFINING
SILICIDES
URANIUM ALLOYS
IRON ALLOYS AND SYSTEMS/Fe-Si-U-base
grain refining of dilute
for use in reactor fuels
URANIUM ALLOYS AND SYSTEMS/Fe-Si-U-base
grain refining of dilute
for use in reactor fuels
SILICON SYSTEMS/Fe-Si-U- base
grain refining of dilute
for use in reactor fuels
REACTOR FUELS/ preparation of Sicral-type uranium-base
by grain refining