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Kinetics of ferrite to Widmanstätten austenite transformation in a high-strength low-alloy steel revisited

  • Zhanli Guo and Wei Sha EMAIL logo
Published/Copyright: February 8, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 95 Issue 8

Abstract

Growth kinetics of Widmanstätten austenite in ferrite in a Fe–C–Mn–Nb high strength low-alloy steel is studied. It is based on the model developed by Ivantsov, Horvay and Cahn, and Trivedi (HIT theory) that describes diffusion-controlled growth of precipitates with shapes approximating to needles or plates. The calculated results using HIT theory with experimental values of the radius of the advancing tip agree well with the experimental observations. It is found that the ratio between calculated and experimental values of the radius of the advancing tip is inversely proportional to the degree of supersaturation. The influence from transformation strain/stress and/or anisotropy of interphase energy on precipitate morphology, which was ignored in the development of HIT theory, is discussed.

Keywords: Precipitate growth; High-strength low-alloy steel
Dr. Wei Sha Metals Research Group, School of Civil Engineering, The Queen’s University of Belfast, Belfast BT7 1NN, UK Tel.: +44 28 9097 4017 Fax: +44 28 9066 3754

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Received: 2004-03-16
Accepted: 2004-05-28
Published Online: 2022-02-08

© 2004 Carl Hanser Verlag, München

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  13. Notifications/Mitteilungen
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https://doi.org/10.1515/ijmr-2004-0133
Keywords for this article
Precipitate growth; High-strength low-alloy steel

Articles in the same Issue

  1. Frontmatter
  2. Articles Basic
  3. Thermodynamic modeling of the Ni–S system
  4. Some control mechanisms of spatial solidification in light alloys
  5. Density and excess volume of liquid copper, nickel, iron, and their binary alloys
  6. The absolute thermoelectric power of Nb–Mo alloys
  7. Articles Applied
  8. Structural and mechanical characteristics of ZA27-7 wt.% SiC composites produced by powder metallurgy techniques
  9. Calorimetric study of Zn13La
  10. Effect of grain size on the static strain aging of a ULC-bake hardening steel
  11. Kinetics of ferrite to Widmanstätten austenite transformation in a high-strength low-alloy steel revisited
  12. Transformation behavior of two Ni–Mn–Ga alloys
  13. Notifications/Mitteilungen
  14. Personal/Personelles
  15. News/Aktuelles
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