The features of the transformation of structural-phase states of a non-equiatomic multicomponent system based on refractory metals W-Ta-Mo-Nb-Zr-Cr-Ti after high-energy ball-milling of various durations are studied. Three main stages have been identified that differ in the morphology of the powder mixture, the distribution of components, phase compositions and the character of the change in microhardness. It was shown that already at the initial stage of treatment, two phases are formed, one of which (BCC-1) is a solid solution based on BCC (body-centered cubic) refractory metals, and the other (BCC-2) is a solid solution enriched in Zr, Cr and Ti. It has been suggested that the BCC-2 phase is a precursor state for the Laves phases that form during subsequent SPS (spark plasma sintering). A change in morphology and structural-phase composition is accompanied by a microhardness increase from 4.03 ± 1.12 GPa after 1 min to 8.93 ± 1.74 GPa after 15.5 min of treatment.

研究了不同持续时间的高能球磨后基于难熔金属W-Ta-Mo-Nb-Zr-Cr-Ti的非等原子多组分体系结构相态转变的特征。已经确定了三个主要阶段，它们在粉末混合物的形态，组分的分布，相组成和显微硬度变化的特征方面有所不同。结果表明，已经在治疗的初始阶段形成了两个阶段，其中一个阶段（BCC-1）是基于BCC（体心立方）难熔金属的固溶体，而另一个阶段（BCC-2）是富含Zr，Cr和Ti的固溶体 已经提出，BCC-2相是在随后的SPS（火花等离子体烧结）期间形成的Laves相的前体状态。