This study determined the possibility of reducing sintering temperature by designing a new tungsten heavy alloy (WHA). For this purpose, 90 W-(10-X)Ni-XSb alloys with different Sb (X = 2.4, 3.2, and 4) were sintered at 1100, 1200, 1300, and 1400 °C for 60 min. SEM equipped with energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD)analysis was used to evaluate the microstructure and composition of sintered alloys. The samples were then examined for their density, hardness, and mechanical properties. The relative densities of the 90 W-6.8Ni-3.2Sb alloy sintered at 1200 °C and the 90 W-7.6Ni-2.4Sb alloy sintered at 1300 °C were achieved over 99%. The maximum relative density (99.51%) was achieved in 90 W–6.8Ni–3.2Sb alloys sintered at 1300 °C. The tungsten particle size in this alloy was about 27.8 μm. With increasing of antimony, the tungsten particle size and relative density initially increased and then decreased again, while the opposite was observed for contiguity. The x-ray diffraction pattern revealed that the Ni₃Sb phase developed in the matrix phase as the antimony content increased. In addition, when Sb rose, the compressive yield strength fell and the hardness increased. The compressive yield strength of alloys containing 2.4, 3.2, and 4 wt% Sb was 1325, 1322, and 1251 MPa, respectively. The density, hardness, and compressive yield strength of the W-Ni-Sb alloys were comparable to that of the conventional W-Ni-Fe alloys, while the sintering temperature was lower.

这项研究确定了通过设计一种新的钨重合金 (WHA) 来降低烧结温度的可能性。为此，将具有不同 Sb（X = 2.4、3.2 和 4）的 90 W-(10-X)Ni-XSb 合金在 1100、1200、1300 和 1400 °C 下烧结 60 分钟。配备能量色散 X 射线光谱 (EDX) 和 X 射线衍射 (XRD) 分析的 SEM 用于评估烧结合金的微观结构和成分。然后检查样品的密度、硬度和机械性能。1200℃烧结的90 W-6.8Ni-3.2Sb合金和1300℃烧结的90 W-7.6Ni-2.4Sb合金的相对密度达到99%以上。在 1300 °C 下烧结的 90 W–6.8Ni–3.2Sb 合金达到最大相对密度 (99.51%)。该合金中的钨粒径约为 27.8 μm。随着锑的增加，钨的颗粒大小和相对密度最初增加然后又减少，而观察到的连续性则相反。X 射线衍射图显示，Ni₃ Sb 相随着锑含量的增加在基体相中形成。另外，当Sb升高时，抗压屈服强度下降，硬度增加。含 2.4、3.2 和 4 wt% Sb 的合金的抗压屈服强度分别为 1325、1322 和 1251 MPa。W-Ni-Sb合金的密度、硬度和抗压屈服强度与传统的W-Ni-Fe合金相当，而烧结温度较低。