Research Progress on Toughening and Strengthening Mechanism of Ternary Boride Base Cermets

Abstract

Cermets cover a wide range of applications in many related industries, such as aerospace key parts, automotive, mold, etc., and are often used to prepare various wear-resistant and corrosion-resistant roller tables, liners, molds and tools, etc. . Ternary boride-based cermet materials are considered to be the most promising class of cermet materials because of their advantages such as high melting point, high hardness, high wear resistance and high oxidation resistance. However, ternary boride-based cermets exhibits some defects of large brittleness and low toughness. This article summarizes the latest research progress on ternary boride based cermets, and mainly discusses the influence of mechanical properties of ternary boride based cermets and the application of ternary boride based cermets by reinforcements and alloy elements. The current situation and the research direction of ternary boride based cermets are prospected.