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Title: Influence of carbon partitioning kinetics on final Austenite fraction during quenching and partitioning

Abstract

The quenching and partitioning (Q&P) process is a two-stage heat-treatment procedure proposed for producing steel microstructures that contain carbon-enriched retained austenite. In Q&P processing, austenite stabilization is accomplished by carbon partitioning from supersaturated martensite. A quench temperature selection methodology was developed to predict an optimum process quench temperature; extension of this methodology to include carbon partitioning kinetics is developed here. Final austenite fraction is less sensitive to quench temperature than previously predicted, in agreement with experimental results.

Authors:
 [1];  [2];  [2];  [3];  [4];  [5]
  1. Los Alamos National Laboratory
  2. COLORADO SCHOOL OF MINES
  3. PONTIFFCIA UNIV
  4. UNIV OF LEEDS
  5. IMDEA-MATERIALES, MADRID
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
956591
Report Number(s):
LA-UR-09-01639; LA-UR-09-1639
Journal ID: ISSN 1359-6462; SCMAF7; TRN: US201014%%1960
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Name: Scripta Materialia; Journal ID: ISSN 1359-6462
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AUSTENITE; CARBON; HEAT TREATMENTS; KINETICS; MARTENSITE; MICROSTRUCTURE; PROCESSING; QUENCHING; STABILIZATION; STEELS; TEMPERATURE DEPENDENCE

Citation Formats

Clarke, Amy J, Speer, John G, Matlock, David K, Rizzo, F C, Edmonds, David V, and Santofimia, Maria J. Influence of carbon partitioning kinetics on final Austenite fraction during quenching and partitioning. United States: N. p., 2009. Web. doi:10.1016/j.scriptamat.2009.03.021.
Clarke, Amy J, Speer, John G, Matlock, David K, Rizzo, F C, Edmonds, David V, & Santofimia, Maria J. Influence of carbon partitioning kinetics on final Austenite fraction during quenching and partitioning. United States. https://doi.org/10.1016/j.scriptamat.2009.03.021
Clarke, Amy J, Speer, John G, Matlock, David K, Rizzo, F C, Edmonds, David V, and Santofimia, Maria J. 2009. "Influence of carbon partitioning kinetics on final Austenite fraction during quenching and partitioning". United States. https://doi.org/10.1016/j.scriptamat.2009.03.021. https://www.osti.gov/servlets/purl/956591.
@article{osti_956591,
title = {Influence of carbon partitioning kinetics on final Austenite fraction during quenching and partitioning},
author = {Clarke, Amy J and Speer, John G and Matlock, David K and Rizzo, F C and Edmonds, David V and Santofimia, Maria J},
abstractNote = {The quenching and partitioning (Q&P) process is a two-stage heat-treatment procedure proposed for producing steel microstructures that contain carbon-enriched retained austenite. In Q&P processing, austenite stabilization is accomplished by carbon partitioning from supersaturated martensite. A quench temperature selection methodology was developed to predict an optimum process quench temperature; extension of this methodology to include carbon partitioning kinetics is developed here. Final austenite fraction is less sensitive to quench temperature than previously predicted, in agreement with experimental results.},
doi = {10.1016/j.scriptamat.2009.03.021},
url = {https://www.osti.gov/biblio/956591}, journal = {Scripta Materialia},
issn = {1359-6462},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}

Works referenced in this record:

Carbon partitioning into austenite after martensite transformation
journal, May 2003


Partitioning of carbon from supersaturated plates of ferrite, with application to steel processing and fundamentals of the bainite transformation
journal, June 2004


Effect of Retained Austenite Stabilized via Quench and Partitioning on the Strain Hardening of Martensitic Steels
journal, July 2008


Escape of carbon from ferrite plates in austenite
journal, July 1993


Packet microstructure in Fe-0.2 pct C martensite
journal, March 1974


The effect of structure on the deformation of as-quenched and tempered martensite in an Fe-0.2 pct C alloy
journal, December 1976