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

by Nan Lin 1,*, Yuehui He 2,* and Xiyue Kang 2
1
College of Materials Science and Engineering, Hunan University, Changsha 410082, China
2
State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China
*
Authors to whom correspondence should be addressed.
Materials 2017, 10(9), 1090; https://doi.org/10.3390/ma10091090
Received: 15 July 2017 / Revised: 11 September 2017 / Accepted: 13 September 2017 / Published: 15 September 2017
(This article belongs to the Section Structure Analysis and Characterization)
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. View Full-Text
Keywords: cermets; transmission electron microscopy; interface structure; mechanical properties; abrasion resistance cermets; transmission electron microscopy; interface structure; mechanical properties; abrasion resistance
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MDPI and ACS Style

Lin, N.; He, Y.; Kang, X. Enhanced Interface Structure and Properties of Titanium Carbonitride-Based Cermets with the Extra Solid Phase Reaction. Materials 2017, 10, 1090.

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