An α/β two-phase Ti–6Al–4V alloy was fabricated by electron beam melting to obtain a basketweave structure. The orientation dependence of the mechanical properties of Ti–6Al–4V alloy was studied by micro-pillar compression and post-mortem transmission electron microscopy analysis. The results indicate that different grains have different mechanical responses, and the possible attributions were discussed. Besides the orientation effect, due to the limited volumes of micropillars, the size of the α phases, dispersion of the β phases, and the presence of the free dislocation path also affect the mechanical properties of the micropillars to a large extent. Although no direct link was discovered between the mechanical properties and the parent β orientations, this work provided a promising method to further study the anisotropic mechanical behavior in Ti–6Al–4V alloy.

通过电子束熔化制备了一种α/β两相Ti-6Al-4V合金，从而获得了篮状组织。通过微柱压缩和事后透射电子显微镜分析研究了Ti-6Al-4V合金力学性能的取向依赖性。结果表明，不同的晶粒具有不同的力学响应，并讨论了可能的归因。除了定向作用之外，由于微柱的体积有限，α相的大小，β相的分散以及自由位错路径的存在也会在很大程度上影响微柱的机械性能。尽管在力学性能和母体β取向之间未发现直接联系，