Mechanical Spectroscopy and Neutron Diffraction Studies in Fe-Al-Si Alloys

O.A. Lambri; José Ignacio Pérez-Landazábal; G.J. Cuello; J.A. Cano; Vicente Recarte; Igor S. Golovin

doi:10.4028/www.scientific.net/SSP.137.91

Paper Titles

Analysis of Internal Friction Peaks in High Purity Molybdenum by a Viscoelastic Procedure Independent of the Relaxation Strength
p.49

Structure and Anelasticity of Fe-Ge Alloys
p.59

Snoek-Type and Zener Relaxation in Fe-Si-Al Alloys
p.69

Room-Temperature Short-Range Ordering in Fe-Si Alloys Observed by Internal Friction
p.83

Mechanical Spectroscopy and Neutron Diffraction Studies in Fe-Al-Si Alloys
p.91

Mechanical Spectroscopy of the Fe-25Al-Cr Alloys in Medium Temperature Range
p.99

On the Formation of High Damping State in Fe-Al and Fe-Cr Alloys
p.109

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels
p.119

Influence of Heat Treatment on Magnetic and Damping Properties of Fe-11 at.% Al Alloys
p.129

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Mechanical Spectroscopy and Neutron Diffraction Studies in Fe-Al-Si Alloys

Abstract:

Mechanical spectroscopy and neutron diffraction studies were performed on several samples with compositions Fe - 25 at. % (Al + Si) and Fe - 15 at. % (Al + Si). It was found that the solute grain boundary relaxation is strongly dependent on the degree of order in the sample. A decrease in the orderdegree allows the development of a relaxation peak at around 1000 K during cooling from 1200 K. In contrast, if the order degree is not decreased, the grain boundaries remain locked and consequently the relaxation peak does not appear. The magnetic response both in the asquenched and after thermal treatment states was also explored and correlated to the microstructural state.