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Aluminium-nickel-iron alloys resistant to corrosion by water at high temperature. Their basic properties - their improvement; Les alliages aluminium-nickel-fer resistant a la corrosion par l'eau a haute temperature. Bases de leurs proprietes - leur amelioration

Abstract

The development of the investigations carried out on these alloys is reviewed, showing the establishment of their fundamental, particularly structural, properties. This is followed by studies on: 1 - The penetration process in corrosion. The results of micrographic studies of the metal oxide interface are given for a series of alloys treated in water and steam between 350 and 395 deg. C. The hypothesis of attack by pockets of gas pressure is corroborated, and a second process of deep penetration by islands of intergranular-type corrosion is shown to take place. These patches, distinct from the surface corrosion layer and sometimes forming at a considerable depth inside the metal, would be due to heterogeneities in composition of the solid solution making up the matrix of these alloys. 2 - The role of titanium and zirconium additions on rolled metal. Systematic studies are carried out on a series of alloys with titanium and zirconium contents between 0.05 and 0.15 per cent. The favourable effect of titanium in particular has been demonstrated. Zirconium acts in the same way, but less efficiently. The improvement due to these additions can be compared to their action on the distribution of the second phases, which tend to  More>>
Authors:
Coriou, H; Fournier, R; Grall, L; Hure, J [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1959
Product Type:
Technical Report
Report Number:
CEA-R-1313
Resource Relation:
Conference: Conference on the corrosion in nuclear reactors, Conference sur la corrosion dans les reacteurs nucleaires, Bruxelles (Belgium), 14-16 Oct 1959; Other Information: 10 refs
Subject:
36 MATERIALS SCIENCE; ALUMINIUM BASE ALLOYS; COMPARATIVE EVALUATIONS; CORROSION RESISTANT ALLOYS; CORROSIVE EFFECTS; INTERGRANULAR CORROSION; IRON ALLOYS; NICKEL ALLOYS; NODULAR CORROSION; PHOTOMICROGRAPHY; SOLID SOLUTIONS; TEMPERATURE RANGE 0400-1000 K; TERNARY ALLOY SYSTEMS; TIME DEPENDENCE; TITANIUM ADDITIONS; WATER; WATER VAPOR; WELDED JOINTS; ZIRCONIUM ADDITIONS
OSTI ID:
20942961
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1313096414
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
37 pages
Announcement Date:
Dec 13, 2007

Citation Formats

Coriou, H, Fournier, R, Grall, L, and Hure, J. Aluminium-nickel-iron alloys resistant to corrosion by water at high temperature. Their basic properties - their improvement; Les alliages aluminium-nickel-fer resistant a la corrosion par l'eau a haute temperature. Bases de leurs proprietes - leur amelioration. France: N. p., 1959. Web.
Coriou, H, Fournier, R, Grall, L, & Hure, J. Aluminium-nickel-iron alloys resistant to corrosion by water at high temperature. Their basic properties - their improvement; Les alliages aluminium-nickel-fer resistant a la corrosion par l'eau a haute temperature. Bases de leurs proprietes - leur amelioration. France.
Coriou, H, Fournier, R, Grall, L, and Hure, J. 1959. "Aluminium-nickel-iron alloys resistant to corrosion by water at high temperature. Their basic properties - their improvement; Les alliages aluminium-nickel-fer resistant a la corrosion par l'eau a haute temperature. Bases de leurs proprietes - leur amelioration." France.
@misc{etde_20942961,
title = {Aluminium-nickel-iron alloys resistant to corrosion by water at high temperature. Their basic properties - their improvement; Les alliages aluminium-nickel-fer resistant a la corrosion par l'eau a haute temperature. Bases de leurs proprietes - leur amelioration}
author = {Coriou, H, Fournier, R, Grall, L, and Hure, J}
abstractNote = {The development of the investigations carried out on these alloys is reviewed, showing the establishment of their fundamental, particularly structural, properties. This is followed by studies on: 1 - The penetration process in corrosion. The results of micrographic studies of the metal oxide interface are given for a series of alloys treated in water and steam between 350 and 395 deg. C. The hypothesis of attack by pockets of gas pressure is corroborated, and a second process of deep penetration by islands of intergranular-type corrosion is shown to take place. These patches, distinct from the surface corrosion layer and sometimes forming at a considerable depth inside the metal, would be due to heterogeneities in composition of the solid solution making up the matrix of these alloys. 2 - The role of titanium and zirconium additions on rolled metal. Systematic studies are carried out on a series of alloys with titanium and zirconium contents between 0.05 and 0.15 per cent. The favourable effect of titanium in particular has been demonstrated. Zirconium acts in the same way, but less efficiently. The improvement due to these additions can be compared to their action on the distribution of the second phases, which tend to become more pronounced and more homogeneously distributed. The influence of solder on these alloys has been studied, showing up the part played by the structure gradients introduced by fission. (author) [French] Apres un rappel de l'evolution des etudes sur ces alliages, montrant l'etablissement de leurs proprietes fondamentales et, en particulier, structurales, on etudie: 1 - Les processus de penetration de la corrosion. On expose les resultats de l'etude micrographique de l'interface metal-oxyde sur une serie d'alliages traites dans l'eau et la vapeur entre 350 et 395 deg. C. On verifie l'hypothese de l'attaque par poches de pression gazeuse et on met en evidence un second processus de progression en profondeur par ilots de corrosion de type intergranulaire. Ces ilots distincts de la couche de corrosion superficielle et se formant parfois tres en profondeur dans le metal seraient dus a des heterogeneites de composition de la solution solide constituant la matrice de ces alliages. 2 - Le role des additions de titane et zirconium sur le metal lamine. On etudie systematiquement sur une serie d'alliages ayant des teneurs en titane et zirconium comprises entre 0,05 et 0,15 pour cent. On a pu mettre en evidence en particulier le role favorable du titane. Le zirconium agit dans le meme sens mais moins efficacement. L'amelioration due a ces additions est a rapprocher de leur action sur la repartition des secondes phases qui tendent a s'affirmer et a se repartir de fa n plus homogene. On a etudie l'influence de la soudure sur ces alliages ce qui met en evidence le role des gradients de structure introduite par la fusion. (auteur)}
place = {France}
year = {1959}
month = {Jul}
}