HIGH-RESOLUTION TRANSMISSION ELECTRON MICROSCOPY OF LONG-PERIOD STACKING STRUCTURE IN Zr(CrV)2 LAVES PHASE
Zr(Cr,V)2 Laves相长周期堆垛结构的高分辨电子显微术观察

The microstructures of the annealed Zr(Cr,V)_2 Laves phase were studied using high- resolution electron microscopy(HREM).The results show that the annealed Zr(Cr,V)_2 Laves phase has a lamellar microstructure under low magnification,and selected-area electron diffraction indicates the existence of a long-period structure.HREM and fast Fourier transformation further indicate that the structure of annealed Zr(Cr,V)_2 is C36(4H)combined with 8H and other transitional multilayer stacking structure.The effect of V on the stability of ZrCr_2 Laves phase was also discussed.