$alpha$-GRAIN REFINING AND METALLURGICAL STUDY OF ALLOYED URANIUM, SICRAL F1, USED FOR FUEL ELEMENTS. (in French)
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
- Country of Publication:
- France
- Language:
- French
Similar Records
Effect of the Alloy Composition on the Grain Refinement Of Aluminum Alloys
Grain Refinement of Permanent Mold Cast Copper Base Alloys
Related Subjects
GRAIN SIZE
IRON ALLOYS
IRON ALLOYS AND SYSTEMS/Fe--Si--U-base
grain refining of dilute
for use in reactor fuels
N30120* --Metals
Ceramics
& Other Materials--Metals & Alloys--Preparation & Fabrication
N38700 --Reactor Components
Fuels & Accessories
PREPARATION
REACTOR FUELS/ preparation of Sicral-type uranium-base
by grain refining
REFINING
SILICIDES
SILICON SYSTEMS/Fe--Si--U- base
grain refining of dilute
for use in reactor fuels
URANIUM ALLOYS
URANIUM ALLOYS AND SYSTEMS/Fe--Si--U-base
grain refining of dilute
for use in reactor fuels