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发明公开
CN110804710A 一种Mo-Tb-Dy合金材料及其制备方法 有权

一种Mo-Tb-Dy合金材料及其制备方法
摘要：
本发明公开了一种Mo-Tb-Dy合金材料，包括重量比为85.4-87.4：9～10：3.6～4.6的Mo、Tb和Dy，800℃时，Mo-Tb-Dy合金的抗拉强度Rm可达到173.3Mpa，本发明还公开了其制备方法，其包括以下步骤：通入惰性气体保护，将Mo、Tb、Dy三种金属粉末混合，进行球磨混料；将经球磨混料的Mo-RE粉末，进行装料填实，利用冷等静压工艺进行粉末预成型；将预成型的材料真空高温烧结。本发明制备的Mo-Tb-Dy合金材料，由于Tb、Dy稀土元素的加入，Mo-Tb-Dy合金材料的高温性能显著提高，在800℃时，Mo-Tb-Dy合金材料的抗拉强度Rm可达到173.3MPa。
摘要（英）：

The invention discloses a Mo-Tb-Dy alloy material. The Mo-Tb-Dy alloy material consists of MO, Tb and Dy mixed by following weight rate: 85.4-87.4:9-10:3.6-4.6, and under 800 DEG C, the tensile strength Rm of the Mo-Tb-Dy alloy material can reach 173.3Mpa. The invention further discloses a preparation method of the Mo-Tb-Dy alloy material. The preparation method of the Mo-Tb-Dy alloy material includes the following steps: guiding inert gas for realizing protection, mixing the three types of metal powder of Mo, Tb and Dy, and performing ball milling and material mixing; performing loading and tamping on Mo-RE powder after completing the ball milling and the material mixing, and performing preforming on the powder by adopting the isostatic cool pressing process; and performing vacuum high temperature sintering on the preformed material. According to the Mo-Tb-Dy alloy material prepared by using the preparation method, high temperature performance of the Mo-Tb-Dy alloy material is significantly improved by adding the rare earth elements of Tb and Dy, and under 800 DEG C, the tensile strength Rm of the Mo-Tb-Dy alloy material can reach 173.3Mpa.

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