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Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy

  • Haijiang Hu , Guang Xu , Feng Liu , Li Wang , Lixin Zhou and Zhengliang Xue
Published/Copyright: April 12, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 4

Abstract

For the first time, investigation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy was conducted with in-situ observation using high temperature laser scanning confocal microscopy during austenization. It was found that twins nucleated in austenite grains, some of which might disappear during isothermal holding, even as new twins might nucleate at grain boundaries. In addition, the effects of twins and austenite grains on bainite morphology were also examined. The twins can restrain the growth of bainite sheaves and smaller austenite grains result in shorter bainite laths. The investigation of dynamic evolution of twins and the analysis of the effect of austenite twins on bainite morphology can only be realized by means of in-situ observation.

Keywords: Austenite twin; Dynamic observation; Austenite grain; Bainite morphology
* Correspondence address, Dr. Prof. Guang Xu, Faculty of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, Tel.: +86-027-68862813, Fax: +86-027-68862807, E-mail:

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Received: 2013-10-21
Accepted: 2013-12-18
Published Online: 2014-04-12
Published in Print: 2014-04-14

© 2014, Carl Hanser Verlag, München

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  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
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  20. People
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https://doi.org/10.3139/146.111037
Keywords for this article
Austenite twin; Dynamic observation; Austenite grain; Bainite morphology

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
  9. Approach to evaluation of the overall strengthening and toughening effect of continuous fiber-reinforced ceramic matrix composites
  10. The effect of SiC/Al2O3 particles used during FSP on mechanical properties of AZ91 magnesium alloy
  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
  12. Evaluation of corrosion performance of two Mn-containing stainless steel alloys
  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
  15. Mechanical properties of polyvinyl alcohol sponge under different strain rates
  16. Short Communications
  17. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
  21. The German Materials Society congratulates its long-time Managing Director Dr. Peter Paul Schepp on the occasion of his 65th birthday
  22. Dr. Margarethe Hofmann-Amtenbrink on her 65th birthday
  23. DGM News
  24. DGM News
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