Analysis of Intergranular Precipitation in Isothermally Aged Nitrogen-Containing Austenitic Stainless Steels by an Electrochemical Method and Its Relation to Cryogenic Toughness
Joint Authors
Saucedo-Muñoz, Maribel L.
Avila-Davila, Erika O.
Dorantes-Rosales, Hector J.
Lopez-Hirata, Victor M.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-06
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The precipitation process in two N-containing austenitic stainless steels, aged at temperatures between 873 and 1173 K for times from 10 to 1000 min, was analyzed by an electrochemical method based on the anodic polarization test with an electrolyte of 1 N KOH solution.
The anodic polarization curves showed the following intergranular precipitation sequence: austenite → austenite + Cr23C6→ austenite + Cr23C6 + Cr2N.
Besides, the fastest precipitation kinetics was detected in the aged steel with the highest content of nitrogen and carbon due to its higher driving force for precipitation.
The higher the aging temperature, the higher volume fraction of precipitates.
The precipitation fraction can be associated with the current density of the dissolution peaks of each phase.
The Charpy-V-Notch impact energy of the aged specimens decreased with the increase in the volume fraction of precipitates.
American Psychological Association (APA)
Saucedo-Muñoz, Maribel L.& Lopez-Hirata, Victor M.& Dorantes-Rosales, Hector J.& Avila-Davila, Erika O.. 2011. Analysis of Intergranular Precipitation in Isothermally Aged Nitrogen-Containing Austenitic Stainless Steels by an Electrochemical Method and Its Relation to Cryogenic Toughness. Advances in Materials Science and Engineering،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-454815
Modern Language Association (MLA)
Saucedo-Muñoz, Maribel L.…[et al.]. Analysis of Intergranular Precipitation in Isothermally Aged Nitrogen-Containing Austenitic Stainless Steels by an Electrochemical Method and Its Relation to Cryogenic Toughness. Advances in Materials Science and Engineering No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-454815
American Medical Association (AMA)
Saucedo-Muñoz, Maribel L.& Lopez-Hirata, Victor M.& Dorantes-Rosales, Hector J.& Avila-Davila, Erika O.. Analysis of Intergranular Precipitation in Isothermally Aged Nitrogen-Containing Austenitic Stainless Steels by an Electrochemical Method and Its Relation to Cryogenic Toughness. Advances in Materials Science and Engineering. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-454815
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-454815
