Microstructure and mechanical properties of Ti-based solid-solution cermets

作者：Kim Jiwoong; Seo Moonsu; Kang Shinhoo^*

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2011, 528(6): 2517-2521.

DOI：10.1016/j.msea.2010.11.076

• Ti-based solid-solution
• Carbothermal reduction
• Microstructure
• Mechanical properties
• Transverse rupture strength

The microstructure and mechanical properties of various (Ti(1-x)W(x))C-20 wt.%Ni cermets were investigated, where x varies from 0.07 to 0.3. Homogeneous solid-solution (Ti(1-x)W(x))C powders were prepared by carbothermal reduction via planetary milling of Ti, TiO(2), WO(3) and carbon powder mixtures. The cermets made of the powders showed a simple core-rim structure consisting of solid-solution carbides. The hardness of the solid-solution cermets is somewhat lower than that of conventional cermets, but they show greater toughness. The transverse rupture strength increases with increasing W content.

• 出版日期2011-3-15