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A general approach on the modelling of incubation in ferrite transformation using non-isothermal kinetics data for 22MnB5 steel

  • Xiangjun Chen , Bernard Rolfe , Amir Abdollahpoor , Namin Xiao and Dianzhong Li
Published/Copyright: May 30, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 6

Abstract

The most challenging part, in modelling tailored hot stamping processes, is the variable cooling transformation that occurs in real industrial processes. In this study, analytical equations are first fitted to both experimental isothermal and continuous cooling transformation data. Then, an optimized fitting method with a weight coefficient is introduced that considers two transformation data to provide a more accurate transformation prediction. Finally, the generalized calculated result of incubation time using Rios's proposed method based on optimized continuous cooling transformation curves is contrasted against one calculated with a modified generalized calculated method. The results show that the consideration of the current temperature and cooling rate increases the accuracy of incubation time predictions as the gradient of cooling rate increases.

Keywords: Incubation time; Transformation kinetics; 22MnB5 steel; Optimized fitting method; Generalized calculation method
*Correspondence address, Dr. Dianzhong Li, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China, Tel.: +862423971973, Fax: +862483970097, E-mail: , Web: http://www.synl.ac.cn/english/part_model.htm

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Received: 2016-11-25
Accepted: 2017-03-06
Published Online: 2017-05-30
Published in Print: 2017-06-12

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111501
Keywords for this article
Incubation time; Transformation kinetics; 22MnB5 steel; Optimized fitting method; Generalized calculation method

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. The thermodynamic stability induced by solute co-segregation in nanocrystalline ternary alloys
  5. A general approach on the modelling of incubation in ferrite transformation using non-isothermal kinetics data for 22MnB5 steel
  6. Effect of aging on microstructure and mechanical properties of ZnAl15Cu1 alloy for wrought applications
  7. Deformation behavior and texture randomization of Mg–Zn–Gd alloys reinforced with icosahedral quasicrystal
  8. Atomic mobility in liquid and fcc Al–Si–Mg–RE (RE = Ce, Sc) alloys and its application to the simulation of solidification processes in RE-containing A357 alloys
  9. Reactive wetting of Ti-6Al-4V alloy by molten Al 4043 and 6061 alloys at 600–700°C
  10. Laser surface treatment of S235JRC carbon steel with Co2B nanocrystals
  11. Research and analysis of stress distribution in multilayers of coated tools
  12. Observations of freeze layer formation during heat balance shifts in cryolite-based smelting bath
  13. Synthesis and thermo-mechanical investigation of macrodiol-based shape memory polyurethane elastomers
  14. DGM News
  15. DGM News
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