Work piece with a layer of hard material that contains alcr...

Details Work piece with a layer of hard material that contains alcr... Work piece with a layer of hard material that contains alcr...

C - Chemistry, Metallurgy

23

C

C23C 14/06 (2006.01) C23C 14/00 (2006.01) C23C 14/02 (2006.01) C23C 14/58 (2006.01) C23C 30/00 (2006.01)

Patent

CA 2523882

Disclosed is a workpiece or part comprising a layer system that is provided with at least one layer having the composition (AlyCr1-y) X, wherein X = N, C, B, CN, BN, CBN, NO, CO, BO, CNO, BNO, or CBNO while 0.2 = y < 0.7. The composition within the layer is substantially constant or changes in a continuous or staggered manner across the thickness of said layer. Also disclosed is a method for producing such a workpiece or part.

L'invention concerne une pièce à usiner ou un élément de construction comprenant un système de couches constitué par au moins une couche de composition (Al¿y?Cr¿1-y?) X, X = N, C, B, CN, BN, CBN, NO, CO, BO, CNO, BNO ou CBNO et 0, 2 = y < 0.7. La composition de la couche à l'intérieur de celle-ci est soit sensiblement constante, soit elle varie de manière continue ou graduelle sur l'épaisseur de la couche. La présente invention porte également sur des procédés pour réaliser la pièce ou l'élément.

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