Paper Title:
A New Approach to Calculate the γ Orientation Maps in Steels
  Abstract

We propose a new approach to automatically reconstruct the  orientation map from the ’ map inherited by the bainitic or martensitic ’ phase transformation. Our model comprises two main steps (1) identification of reliable fractions of parent grains – each  fraction orientation is determined from neighbouring variants related to a unique  orientation with a low tolerance angle; (2) expansion of these fractions by collecting adjacent variants being in orientation relation (OR) with the  orientation of the initial fraction - using now a higher tolerance around the strict OR. The code was tested on ’ maps we built from reference  maps to control some characteristics of the transformation, i.e. the type of OR used, the spread around OR, the number of inherited variants. The results show that even with a large spread around OR, the shape and orientation of most of the  grains are accurately calculated.

  Info
Periodical
Solid State Phenomena (Volume 160)
Edited by
H. Klein and R.A. Schwarzer
Pages
203-210
DOI
10.4028/www.scientific.net/SSP.160.203
Citation
P. Blaineau, L. Germain, M. Humbert, N. Gey, "A New Approach to Calculate the γ Orientation Maps in Steels", Solid State Phenomena, Vol. 160, pp. 203-210, 2010
Online since
February 2010
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Price
$32.00
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