It is shown by means of electron diffraction and high resolution lattice imaging that there are 9R, 10H, 16H, 20H, 21R, 44H and 2H structures in cast Ni3 (Ti x,V1-x) alloys.

• 本文利用电子衍射及高分辨点阵象实验方法证实了Ni_3(Ti_x,V_(1-x))合金系在铸态下存在有9R,10H,16H,20H,21H,44H等长周期结构以及2H结构。