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Defect study on deformed Fe-Si alloys by positron annihilation techniques

✍ Scribed by Agundez, M. ;Ruiz, D. ;Petegem, S. Van ;De Baerdemaeker, J. ;Chou, K. W. ;Segers, D. ;Houbaert, Y.

Book ID
105363002
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
248 KB
Volume
202
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

Positron annihilation lifetime and coincidence Doppler broadening measurements have been performed on ultra low carbon steel and Fe–Si alloys with different Si contents (from 3.32 up to 11.1 wt%) in the annealed state and after a deformation of 5% thickness reduction. It was seen that above 5.6 wt% Si the nature of the defects trapping the positron changes. This coincides with the concentration for the onset of long range D0~3~ ordering in the Fe–Si alloys changing the nature of the dislocation structure. (Β© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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