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Featured researches published by A. Rivière.


Scripta Metallurgica Et Materialia | 1992

Effect of hydrogen on internal friction background in nickel

A. Zielinski; P. Gadaud; A. Rivière; J. Woirgard; J. de Fouquet

The internal friction background in the low frequency region is known to consist mainly of two parts. For fully magnetized specimens the background is caused by an oscillation of dislocation segments [1]. The other source of damping observed in demagnetized or partially magnetized ferromagnetic originates from the irreversible movement of the 90 ° magnetic domain boundaries [1]. The magnetomechanical damping in nickel is negligible at low and very high strain amplitudes [2] ; it shows a maximum when measured as a function of magnetic field [2,3], and increases with decreasing temperature [2].


Le Journal De Physique Colloques | 1981

EXPERIMENTAL AND THEORETICAL ASPECT OF THE HIGH TEMPERATURE DAMPING OF PURE METALS

J. Woirgard; A. Rivière; J. de Fouquet


Le Journal De Physique Colloques | 1985

HIGH TEMPERATURE RELAXATION MECHANISMS IN Cu-Al SOLID SOLUTIONS

S. Belhas; A. Rivière; J. Woirgard; J. Vergnol; J. de Fouquet


Le Journal De Physique Colloques | 1981

PROGRAMMABLE SYSTEM FOR THE MEASUREMENT OF THE SHEAR MODULUS AND INTERNAL FRICTION, ON SMALL SPECIMENS, AT VERY LOW FREQUENCIES

J. Woirgard; Ph. Mazot; A. Rivière


Scripta Metallurgica | 1975

Frottement interieur du niobium apres deformation a basse temperature

G. Ferron; A. Rivière; M. Quintard; J. Petit; J. de Fouquet


Le Journal De Physique Colloques | 1983

ETUDE DU FROTTEMENT INTÉRIEUR DE HAUTE TEMPÉRATURE DU PALLADIUM POLYCRISTALLIN ULTRA-PUR

A. Rivière; J. Woirgard


Le Journal De Physique Colloques | 1985

ON THE 0.4 TM PEAK IN F.C.C. PURE METALS

A. Rivière; J. Woirgard; J. de Fouquet


Le Journal De Physique Colloques | 1985

Internal friction amplitude dependence in silver single crystal

A. Rivière; J. Woirgard; J. de Fouquet


Le Journal De Physique Colloques | 1983

Frottement intérieur de haute température d'un monocristal d'alliage de cuivre-aluminium

A. Rivière; S. Belhas; J. Woirgard


Scr. Metall., v. 9, no. 7, pp. 697-704 | 1975

Internal friction of Nb after deformation at low temperature

G. Ferron; A. Rivière; M. Quintard; J. Petit; J. de fouquet

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J. Woirgard

Centre national de la recherche scientifique

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J. de Fouquet

Centre national de la recherche scientifique

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G. Ferron

Centre national de la recherche scientifique

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M. Quintard

Centre national de la recherche scientifique

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S. Belhas

Centre national de la recherche scientifique

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J. Petit

École nationale supérieure de mécanique et d'aérotechnique

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J. L. Gacougnolle

Centre national de la recherche scientifique

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J. Vergnol

Centre national de la recherche scientifique

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Ph. Mazot

Centre national de la recherche scientifique

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