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Title: Tempering of low-temperature bainite

Electron microscopy, X-ray diffraction, and atom probe tomography have been used to identify the changes which occur during the tempering of a carbide-free bainitic steel transformed at 473 K (200 °C). Partitioning of solute between ferrite and thin-films of retained austenite was observed on tempering at 673 K (400 °C) for 30 minutes. After tempering at 673 K (400 °C) and 773 K (500 °C) for 30 minutes, cementite was observed in the form of nanometre scale precipitates. Here, proximity histograms showed that the partitioning of solutes other than silicon from the cementite was slight at 673 K (400 °C) and more obvious at 773 K (500 °C). In both cases, the nanometre scale carbides are greatly depleted in silicon.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Univ. of Cambridge, Cambridge (United Kingdom)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 43; Journal Issue: 529; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF)
Sponsoring Org:
USDOE, Office of Management, Budget, and Evaluation; Work for Others (WFO)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1357964

Peet, Mathew J., Babu, Sudarsanam Suresh, Miller, Mike K., and Bhadeshia, H. K. D. H.. Tempering of low-temperature bainite. United States: N. p., Web. doi:10.1007/s11661-017-4086-x.
Peet, Mathew J., Babu, Sudarsanam Suresh, Miller, Mike K., & Bhadeshia, H. K. D. H.. Tempering of low-temperature bainite. United States. doi:10.1007/s11661-017-4086-x.
Peet, Mathew J., Babu, Sudarsanam Suresh, Miller, Mike K., and Bhadeshia, H. K. D. H.. 2017. "Tempering of low-temperature bainite". United States. doi:10.1007/s11661-017-4086-x. https://www.osti.gov/servlets/purl/1357964.
@article{osti_1357964,
title = {Tempering of low-temperature bainite},
author = {Peet, Mathew J. and Babu, Sudarsanam Suresh and Miller, Mike K. and Bhadeshia, H. K. D. H.},
abstractNote = {Electron microscopy, X-ray diffraction, and atom probe tomography have been used to identify the changes which occur during the tempering of a carbide-free bainitic steel transformed at 473 K (200 °C). Partitioning of solute between ferrite and thin-films of retained austenite was observed on tempering at 673 K (400 °C) for 30 minutes. After tempering at 673 K (400 °C) and 773 K (500 °C) for 30 minutes, cementite was observed in the form of nanometre scale precipitates. Here, proximity histograms showed that the partitioning of solutes other than silicon from the cementite was slight at 673 K (400 °C) and more obvious at 773 K (500 °C). In both cases, the nanometre scale carbides are greatly depleted in silicon.},
doi = {10.1007/s11661-017-4086-x},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 529,
volume = 43,
place = {United States},
year = {2017},
month = {4}
}