本发明提供了一种高强韧抗氧钼合金及制备方法，以重量份数计，由以下原料制成：氢化钛 为5～20份，氢化锆为0 .8～2份，镁粉为0 .4～2 份，复合抗氧化粉为为60 .4～202份，钼粉为1000 份；其中，所述的复合抗氧化粉为碳粉、硼粉和硅粉按照质量比为(0 .4～2):(20～80):(40～120) 组成的混合粉。本发明的室温抗拉强度大于 1300MPa，伸长率大于6 .0％，开始氧化温度≥ 1300℃。Mg元素作为还原剂，有利于添加的C元素生成弥散强化的TiC与ZrC第二相。Si、B、C元素复 合协同在高温下易扩散与合金表面氧元素可形 成SiO2-B4C-SiC复合抗氧化保护层。

The invention provides a high strength and toughness antioxidant molybdenum alloy and a preparation method, which is made of the following raw materials by weight parts: 5 ~ 20 parts of titanium hydroxide, 0.8 ~ 2 parts of zirconium hydroxide, 0.4 ~ 2 parts of magnesium powder, 60 ~ 202 parts of composite antioxidant powder, 1000 parts of molybdenum powder; Wherein, the composite antioxidant powder is a mixed powder composed of carbon powder, boron powder and silicon powder according to the mass ratio of (0.4 ~ 2):(20 ~ 80):(40 ~ 120). The tensile strength of the invention is greater than 1300MPa at room temperature, the elongation is greater than 6.0%, and the initial oxidation temperature is greater than 1300℃. As a reducing agent, Mg element is beneficial to the formation of dispersion-strengthened TiC and ZrC second phases by the added C element. Sio2-b4c-sic composite oxidation protection layer can be formed by the coordination of Si, B and C elements and the oxygen elements on the surface of the alloy easily diffused at high temperature.