Wear resistant articles and applications thereof

Abstract

Wear resistant articles are described herein which, in some embodiments, mitigate CTE differences between wear resistant components and metallic substrates. In one aspect, an article comprises a layer of sintered cemented carbide bonded to a layer of iron-based alloy via a metal-matrix composite bonding layer, wherein coefficients of thermal expansion (CTE) of the sintered cemented carbide layer, metal matrix composite bonding layer, and iron-based alloy layer satisfy the relation: x = (  C ⁢ ⁢ T ⁢ ⁢ E ⁢ ⁢ WC - C ⁢ ⁢ T ⁢ ⁢ E ⁢ ⁢ M ⁢ ⁢ M ⁢ ⁢ C  ) (  C ⁢ ⁢ T ⁢ ⁢ E ⁢ ⁢ M ⁢ ⁢ M ⁢ ⁢ C - C ⁢ ⁢ T ⁢ ⁢ E ⁢ ⁢ Fe  ) wherein 0.5≤x≤2 and CTE WC, CTE MMC and CTE Fe are the CTE values for the sintered cemented carbide, metal matrix composite, and iron-based alloy in 1/K respectively at 900° C. to 1100° C.

Dependencies are inferred from the claim text.