Laves phases are effective in tailoring the mechanical properties of alloys used for structural engineering applications. Therefore, it is an emerging research significance to investigate the deformation features of alloys comprising a Laves phase. In this work, the Ti–33Zr–xFe–yCr (x = 5, 7 wt% and y = 2, 4 wt%) alloys were designed in such a way that a Laves phase would form in the investigated Ti–33Zr–xFe–yCr alloys and later, cast by cold crucible levitation melting. All the as-cast alloys exhibit a face-centered cubic C15-type Laves phase along with a dominant β phase. The volume fraction of C15 Laves phase increases as the quantities of Fe and Cr increase in the Ti–33Zr–xFe–yCr alloys. Further, the volume fraction of C15 Laves phase influences the size of the deformation zone around the indentations and hardness of the investigated Ti–33Zr–xFe–yCr alloys. Vickers microindentation technique was used at the three different loads to examine the deformation features (around the indentations) of the as-cast alloys. In this work, Ti–33Zr–5Fe–2Cr shows large plastic strain (37.0%) in compression testing and high (true) yield strength (1,083 MPa) and hardness (3.50 GPa), whereas Ti–33Zr–7Fe–4Cr demonstrates the highest (true) yield strength (1,285 MPa), hardness (4.08 GPa), and the lowest size of the deformation zone around the indentations at three different indentation-loads. Moreover, the indentation-based fracture toughness of Ti–33Zr–7Fe–2Cr and Ti–33Zr–7Fe–4Cr were estimated based on the various relevant models proposed in the established literature.

Laves相可有效调整用于结构工程应用的合金的机械性能。因此，研究包含拉维斯相的合金的变形特征具有新兴的研究意义。在这项工作中，设计了Ti–33Zr–xFe–yCr（x = 5、7 wt％和y = 2、4 wt％）合金，使得在研究的Ti–33Zr–xFe中会形成Laves相。 –yCr合金及以后的产品，通过冷坩埚悬浮熔炼铸造。所有铸态合金均表现出面心立方C15型Laves相以及主要的β相。在Ti–33Zr–xFe–yCr合金中，随着Fe和Cr含量的增加，C15 Laves相的体积分数增加。进一步，C15 Laves相的体积分数会影响所研究的Ti–33Zr–xFe–yCr合金的压痕周围的变形区大小和硬度。在三种不同载荷下使用维氏微压痕技术检查铸态合金的变形特征（在压痕周围）。在这项工作中，Ti–33Zr–5Fe–2Cr在压缩测试中显示出大的塑性应变（37.0％），并具有高（真实）屈服强度（1,083 MPa）和硬度（3.50 GPa），而Ti–33Zr–7Fe–4Cr显示在三个不同的压痕载荷下，最大（真实）屈服强度（1,285 MPa），硬度（4.08 GPa）和压痕周围变形区的最小尺寸。此外，