Published July 1977
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Contribution to the structural study of austeno-ferritic steels. Morphological and analytical definition of the ferritic phase
Description
Conditions of fast and selective austenite dissolution were defined by means of current-voltage curves using AISI 316-type materials (welding beads). The ferritic phase was isolated and identified with X-rays. The percentages of ferrite were compared gravimetrically with those obtained by traditional methods. The ferrite isolated was chemically analysed by atomic absorption, the only doubtful value being carbon. It is shown by this method that a morphological study of the solidification of the ferritic lattice is possible, even for percentages around 1%
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
Sur des materiaux bruts de fusion du type AISI 316 (cordons de soudures) il a ete defini au moyen de courbes courant - tension les conditions de dissolution rapide et selective de l'austenite. La phase ferritique a ete isolee et identifiee aux rayons X. Par gravimetrie, les pourcentages de ferrite ont ete compares a ceux obtenus par les methodes classiques. La ferrite isolee a ete analysee chimiquement par spectrometrie d'absorption atomique, spectrographie d'emission et par coulometrie, la seule valeur douteuse etant le carbone. Par cette methode, il est montre qu'une etude morphologique de la solidification du reseau ferritique est possible meme pour des pourcentages voisins de 1%Files
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Additional details
Additional titles
- Original title (French)
- Contribution a l'etude structurale des aciers austeno-ferritiques. Caracterisation morphologique et analytique de la phase ferritique
Publishing Information
- Imprint Pagination
- 56 p.
- Report number
- CEA-R--4690
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 9354494
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AUSTENITE; DISSOLUTION; ELECTROCHEMICAL CORROSION; STAINLESS STEELS; SULFURIC ACID; THIOCYANATES
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CARBONIC ACID DERIVATIVES; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CORROSION; CORROSION RESISTANT ALLOYS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; IRON ALLOYS; IRON BASE ALLOYS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; STEELS; SULFUR COMPOUNDS; TRANSITION ELEMENT ALLOYS