Advanced Hard Metals for Mining, Construction and Wear Parts in Particular Obtained by Additive Manufacturing
Novel approaches allowing one to overcome the trade-off between hardness, toughness and wear-resistance of hard materials and new advanced hardmetals developed on their basis are described. The new hardmetals include functionally graded WC-Co materials, hierarchical hardmetals with nanograin reinforced binder and nanograined (near-nano) hardmetals. The new advanced hardmetals are presently fabricated in industry on a large scale and commercially available. Hardmetal articles of complicated geometry and shape can be produced by use of a novel technology of additive manufacturing based on selective electron beam melting.
Keywords - Additive Manufacturing, Advanced Hard Metals, Selective Electron Beam Melting, Technology