Experimental investigation of phase equilibria in the Co-W-V ternary system
Liu, X. J.
Zhu, Y. H.
Wang, C. P.
- 材料学院－已发表论文 
The phase equilibria in the Co-W-V ternary system were experimentally investigated by optical microscopy (OM), electron probe microanalysis (EPMA) and X-ray diffraction (XRD) on the equilibrated alloys. Three isothermal sections of the Co-W-V ternary system at 1100 degrees C, 1200 degrees C and 1300 degrees C were determined, and no ternary compound was found in this system. In addition, a novel phenomena induced by the liquid phase separation in the Co-W-V alloys was firstly discovered, suggesting that a stable liquid miscibility gap exists in the Co-W-V ternary system. The newly determined phase equilibria and firstly discovered phase separation phenomena in the Co-W-V system will provide important information for the development of Co-W based alloys. (C) 2011 Elsevier B.V. All rights reserved.