The low temperature brittleness of tungsten (W)-based materials has been a long standing problem for their practical applications. In this study, bulk W–Y₂O₃ alloy rods of 12 mm in diameter were prepared by industrial hydrogen sintering and temperature-controlled rotary swaging. The swaged W–Y₂O₃ alloy contains a low content of gas impurities (<110 ppm) and exhibits a strong <110> texture in the grain structure. At room temperature, the alloy exhibits pronounced yielding and a certain uniform plastic deformation on tensile loading along the axial direction of the rod, and evident bending ductility as well. The mechanical properties of the swaged W–Y₂O₃ alloy are superior to the known bulk W-based alloys in the temperature range from room temperature to 200 °C. The excellent room temperature plastic deformation ability of swaged tungsten alloy is originated from its special texture and bimodal grain structure features, which results in grain boundary separation that blocks effectively the cracking on tensile loading along the [110] texture direction.

钨（W）基材料的低温脆性一直是其实际应用中长期存在的问题。在这项研究中，通过工业氢烧结和温控旋转型锻制备了直径为 12 mm 的块状 W-Y ₂ O _{3合金棒。}型锻的 W-Y ₂ O ₃合金含有低含量的气体杂质（<110 ppm），并在晶粒结构中表现出强烈的 <110> 织构。室温下，合金在棒轴向拉伸载荷下表现出明显的屈服和一定的均匀塑性变形，并具有明显的弯曲延性。型锻W-Y ₂ O _{3的机械性能}合金在从室温到 200 °C 的温度范围内优于已知的块状 W 基合金。型锻钨合金优异的室温塑性变形能力源于其特殊的织构和双峰晶粒结构特征，导致晶界分离，有效地阻止了沿[110]织构方向的拉伸载荷开裂。