Method for reducing the dispersion of tungsten-nickel-iron...

B - Operations – Transporting – 22 – F

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75/7.1

B22F 1/00 (2006.01) C22C 1/04 (2006.01) C22C 27/04 (2006.01)

Patent

CA 1340873

La présente invention est relative à un procédé pour réduire la dispersion des caractéristiques mécaniques d'alliages tungstène-nickel-fer obtenus par frittage de poudres. Le procédé consiste à ajouter de façon conjuguée du cobalt et du manganèse audit alliage. Ce procédé permet de mettre en oeuvre des poudres de tungstène d'origines différentes, de parer à certaines fluctuations dans les conditions d'élaboration de ces alliages et, en outre, d'améliorer certaines caractéristiques telles que l'allongement et la dureté.

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