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Carbon Clustering in Low-Temperature Bainite

Journal Article · · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
 [1];  [2];  [3];  [4];  [4];  [5];  [2];  [2]
  1. Spanish National Center for Metallurgical Research (CENIM-CSIC), Madrid (Spain); ArcelorMittal Global R&D, Avilés (Spain)
  2. Spanish National Center for Metallurgical Research (CENIM-CSIC), Madrid (Spain)
  3. Univ. Carlos III de Madrid, Leganés (Spain)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Univ. Complutense de Madrid, Madrid (Spain)
The bainitic ferrite phase formed at temperatures below 573 K (300 °C) in high-carbon high-silicon steels holds an amount of carbon well above that expected from the thermodynamic paraequilibrium with austenite. Diffraction experiments have shown that the ferrite lattice is sufficiently Zener-ordered to possess a tetragonal symmetry, which allows the structures to be supersaturated in carbon. It could be expected that carbon undergoes ordering beyond that indicated by the Zener-ordering temperature as in the early stages of tempering of Fe-based martensites. Here, this study examines the formation of cluster arrangements of carbon within bainitic ferrite and their relationship to the tetragonal distortion.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1560391
Journal Information:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 11 Vol. 49; ISSN 1073-5623
Publisher:
ASM InternationalCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Positron Annihilation Spectroscopy Study of Carbon-Vacancy Interaction in Low-Temperature Bainite journal January 2020
Quantitative Assessment of the Time to End Bainitic Transformation text January 2019
Quantitative Assessment of the Time to End Bainitic Transformation journal August 2019

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