Paper Title:
Nucleation and Growth of Surface Texture during α-γ-α Transformation in Ultra Low Carbon Steel Alloyed with Mn, Al and Si
  Abstract

. It is well known that surface energy anisotropy is one of the driving forces for the orientation selection at the metal-vapour interface. This affects the microstructure and texture evolution at the surface during phase transformation, which is an inherent feature of low-alloyed low-carbon steels. This paper investigates the nucleation and growth of the surface texture by orientation contrast microscopy. It has been found that the surface texture is dominated by {001} oriented grains, which exhibit a remarkable orientation gradient from the centre of the grain towards the edge. The {001} oriented grain centre gradually rotates around a <110> axis in small incre¬mental steps when nearing the edge of the grain. Towards the edge the accumulated rotation angle has commonly reached a value of 30°. Underneath the surface grains (~30 µm) the bulk texture consists of a strong -fibre.

  Info
Periodical
Solid State Phenomena (Volume 160)
Edited by
H. Klein and R.A. Schwarzer
Pages
223-228
DOI
10.4028/www.scientific.net/SSP.160.223
Citation
J. Gautam, R. H. Petrov, E. Leunis, L. Kestens, "Nucleation and Growth of Surface Texture during α-γ-α Transformation in Ultra Low Carbon Steel Alloyed with Mn, Al and Si", Solid State Phenomena, Vol. 160, pp. 223-228, 2010
Online since
February 2010
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