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. Wasilkowska, 5% de zirconium présentent une amélioration des propriétés mécaniques aux basses températures et ceci jusqu'à 673 K. Ces alliages montrent un important effet durcissant de la solution solide ferritique au cours de déformations à température ambiante. Cet effet s'explique par la réduction de taille de grain due à la ségrégation du zirconium aux joints de grains, Il en résulte un renforcement des propriétés mécanique du matériau associé à la composante de Hall

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F. Et-non-fe-al-zr, Cet effet est en opposition avec celui d'amélioration de cette propriété lors d'une augmentation de la teneur en aluminium

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