This work presented an upgraded high-entropy alloy by the addition of chromium to the conventional Ti-10V-2Fe-3Al alloy to fabricate equiatomic Ti₂₀V₂₀Al₂₀Fe₂₀Cr₂₀ high-entropy alloy via spark plasma sintering powder processing at different temperature of 700 °C, 800 °C, 900 °C, 1000 °C, and 1100 °C respectively under a constant heating rate of 100 °C /min, the pressure of 40 MPa, and holding time of 5 min. The microstructure and phase transformation of the sintered alloyed were studied with a scanning electron microscope equipped with energy dispersive spectroscopy. The constituent phases present in the sintered high-entropy alloy were analyzed by X-ray diffraction and were found to show increased development of body-centered cubic solid solution alloys across the temperature gradients. The mechanical properties over a temperature range of 700 ≤ T °C ≤ 1100 generally show an increase in hardness from 3363 to 8480 MPa, tensile strength from 1097.17 to 2766.58 MPa, and yield strength from793.61 to 2001.13 MPa respectively. The SEM-EDS of Ti₂₀V₂₀Al₂₀Fe₂₀Cr₂₀ equiatomic high-entropy alloys show the existence of a nano-net-like spinodal structure at the optimum temperature of 1100 °C, which are rich in body centered cubic structure. At this elevated temperature, the presence of strong body-centered cubic–forming elements such as Cr, Fe, and Al was established from the corresponding EDS. Ti₂₀V₂₀Al₂₀Fe₂₀Cr₂₀ high-entropy equiatomic alloy has been successfully fabricated by spark plasma sintering. The effects of temperature on microstructural and mechanical properties of the sintered Ti₂₀V₂₀Al₂₀Fe₂₀Cr₂₀ alloy demonstrated a general improvement of the alloys at the elevated region.

这项工作提出了一种改进的高熵合金，方法是在常规的Ti-10V-2Fe-3Al合金中添加铬以制备等原子的Ti ₂₀ V ₂₀ Al ₂₀ Fe ₂₀ Cr ₂₀通过在100°C / min的恒定加热速率下分别在700°C，800°C，900°C，1000°C和1100°C的不同温度下通过火花等离子体烧结粉末处理高熵合金40 MPa，保持时间5分钟。用配有能量色散谱仪的扫描电子显微镜研究了烧结合金的显微组织和相变。通过X射线衍射分析了烧结的高熵合金中存在的组成相，发现其在整个温度梯度上显示出以体心立方固溶体合金的增加的发展。在700≤T°C≤1100的温度范围内的机械性能通常显示硬度从3363升高到8480 MPa，抗拉强度从1097.17到2766.58 MPa，屈服强度从793.61到2001。分别为13 MPa。钛的SEM-EDS₂₀ V ₂₀ Al ₂₀ Fe ₂₀ Cr _20等原子高熵合金显示出在最佳温度1100°C下存在纳米网状旋节线结构，该结构富含体心立方结构。在此升高的温度下，通过相应的EDS确定了强体心立方形成元素（例如Cr，Fe和Al）的存在。通过火花等离子体烧结成功地制备了Ti ₂₀ V ₂₀ Al ₂₀ Fe ₂₀ Cr ₂₀高熵等原子合金。温度对Ti ₂₀ V ₂₀烧结组织和力学性能的影响Al ₂₀ Fe ₂₀ Cr ₂₀合金在升高区域显示出合金的总体改进。