FIELD: metallurgy.
SUBSTANCE: invention may be used for making composite parts, for example, blanks of tools, cutting inserts for flat bits and spherical face mills. Composite articles comprise first section and second section, both from first and second composite materials, metallurgically bonded together. Every said first and second material contains solid particles in binding material. Note here that concentration of ruthenium in said binding material of first composite material differs from that of second material.
EFFECT: no crack formation in machining.
38 cl, 16 dwg
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