【摘要】 本文利用电子衍射及高分辨点阵象实验方法证实了Ni₃(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。它们与体心四方基体相（结构与Ni₃V相同）及六角基体相（结构与Ni₃Ti相同）有固定取向关系:{001}_长周期∥{001}_Ni3Ti∥{112}_Ni3V;〈100〉_长周期∥〈100〉_Ni3Ti∥〈110〉_Ni3V-。样品经长期高温退火处理后其它长周期结构均向9R结构转变。更多还原

【Abstract】 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. These phases have the following orientation relationships with primary phases Ni3Ti and Ni3V: {001}L.P//{001}Ni3Ti//{112}Ni3V; 〈100〉L.P//〈100〉Ni3Ti//〈110〉Ni3V After prolonged annealingat high temperature these phases would transform into 9R.更多还原