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

journal contribution
posted on 2017-06-01, 00:00 authored by X Chen, Bernard RolfeBernard Rolfe, Amir Abdollahpoor, N Xiao, D Li
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.

History

Journal

International Journal of Materials Research

Volume

108

Issue

6

Pagination

441 - 446

Publisher

Carl Hanser Verlag GmbH & Co. KG

Location

Munich, Germany

ISSN

1862-5282

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2017, Carl Hanser Verlag GmbH & Co. KG