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Journal of Materials Science and Nanotechnology | Volume: 2

August 20-21, 2018 | Paris, France

Materials Science and Materials Chemistry

International Conference on

Order disorder transitions in Fe-based alloys

Boulouma Amor

ESTI of Annaba, Algeria

he order-disorder transition in Fe-rich Fe-Al alloys was first

reported in 1932 by Bradley and Jay. Since then, much

effort has been put into understanding the order-disorder

transformation in different systems, particularly in the Fe-Al,

Fe-Si and Fe-Al-Si systems as the typical case of order-disorder

transitions. Two ordered structures with stoichiometric

compositions- Fe (Al-Si) and Fe

(Al-Si), can be formed from

the bcc phase alloys and these structures exist over a wide

range of composition and temperature. The existence of the

ordered phases 1 (Fe

Al and Fe

Si which have D0

or BiF

type

order) and phase 2 (Fe-Al and Fe-Si which have B

or Cs-Cl type

order) along the Fe

Al-Fe

Si section was studied by means of

various techniques in order to understand the nature and

the existence of this transitions such as high temperature

X-ray diffraction and recording the disappearance of D0

superlattice and reflections as a function of temperature and

composition. Further works have been carried out in this field

and led to the understanding of these type of transitions.

Speaker Biography

Boulouma Amor is an assistant professor at the ESTI (French abbreviation of College

of industrial technologies) of Annaba (Algeria) since 2006, has completed his PhD

on “Arc melted Fe-Si-Al alloys’’ in 2018 from the University of Annaba (Algeria) and

became an associate professor there. He has two published papers about Al-Fe-

Si alloys and made over 15 contributions in international conferences on different

themes such as Synthesis of advanced materials from Al-Fe-Si and Si-C alloys by

arc melting and mechanical alloying; Mechanical and magnetic properties of Fe-

Si-Al sendust alloys; Synthesis of composite materials from Al-Fe

reactions, etc.