Phase decomposition and grain growth in (W,Ti) C-Co-alloys

Mechanical and Fretting Wear Behavior of Novel (W,Ti)C–Co cermets

“…Also noted is the less number density of highly elongated WC grains in samples S2 and S3, when compared with S1 cermet. The grain growth behavior in mixed carbide cermets has been discussed earlier by May 2 and lately by Yoon et al 25 . For 70(25TiC–75WC)–30Co(wt%) cermets, Yoon et al .…”

“…Microstructure development in cermets can be further discussed in the light of the reported literature results. From the binary phase diagram of WC–TiC, the formation of (W,Ti)C solid solution phase can be expected to coexist at equilibrium with WC in the investigated composition range 2 . May discussed the critical issues of phase decomposition and grain growth in WC–TiC cermets 2 .…”

“…From the binary phase diagram of WC–TiC, the formation of (W,Ti)C solid solution phase can be expected to coexist at equilibrium with WC in the investigated composition range 2 . May discussed the critical issues of phase decomposition and grain growth in WC–TiC cermets 2 . On the basis of such earlier observations, it is quite possible that phase decomposition of oversaturated mixed (W,Ti)C solid solution to form two equilibrium phases, e.g.…”

“…I n the last few decades, considerable research efforts have been focused on obtaining better properties associated with transition metal carbides such as WC, TiC, and TaC as single phase or through the cermet approach using metallic binders, such as Co or Ni to enhance sinterability via liquid phase sintering 1–6 . In particular, WC‐based hard metals have been widely used in engineering applications, requiring high wear resistance.…”