Weldable, crack-resistant co-based alloy

Details Weldable, crack-resistant co-based alloy Weldable, crack-resistant co-based alloy

C - Chemistry, Metallurgy

22

C

C22C 19/07 (2006.01) B23K 9/00 (2006.01) C23C 2/04 (2006.01) C23C 4/06 (2006.01)

Patent

CA 2588988

A ductile Co-based alloy comprising between about 0.12 wt% and about 0.7 wt% C, between about 20 wt% and about 30 wt% Cr, between about 10 wt% and about 15 wt% Mo, between about 1 wt% and about 4 wt% Ni, and balance of Co, and method of applying the alloy as an overlay to a metallic substrate to provide wear and corrosion resistance without forming cracks during the alloy's solidification.

La présente invention a trait à un alliage ductile à base de Co comprenant entre environ 0,12 % en poids et environ 0,7 % en poids de C, entre environ 20 % en poids et environ 30 % en poids de Cr, entre environ 10 % en poids et environ 15 % en poids de Mo, entre environ 1 % en poids et environ 4 % en poids de Ni, le reste étant du Co, et à un procédé d'application de l'alliage sous forme de revêtement à un substrat métallique pour assurer une résistance à l'usure et à la corrosion sans formation de fissures lors de la solidification de l'alliage.

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