Enhanced Interface Structure and Properties of Titanium Carbonitride-Based Cermets with the Extra Solid Phase Reaction

• Main Authors: Nan Lin, Yuehui He, Xiyue Kang
• Format: Article
• Language: English
• Published: MDPI AG 2017-09-01
• Series: Materials
• Subjects: cermets; transmission electron microscopy; interface structure; mechanical properties; abrasion resistance
• Online Access: https://www.mdpi.com/1996-1944/10/9/1090

In this paper, the influence of the extra solid phase reaction on the interface structure and mechanical properties of titanium carbonitride-based cermets were investigated. The extra solid phase reaction in the preparation process of cermets could induce the formation of a core/rim/binder interface with the coherent structure and reinforce the interface bonding strength in cermets. The existence of a coherent structure interface can inhibit crack spread and improve the toughness and abrasion resistance of titanium carbonitride-based cermets significantly. Cermets can exhibit the high hardness Rockwell Hardness A (HRA) 92.3, fracture toughness of 11.6 MPa·m1/2, and transverse rupture strength of 2810 MPa.