Rare earth ceramic reinforced molybdenum alloy and preparation method thereof

The invention discloses a rare earth ceramic reinforced molybdenum alloy and a preparation method thereof. The molybdenum alloy comprises the following components by weight percent: 1.2-6.4% of alumina, 0.5-2.5% of lanthana and the balance of molybdenum and inevitable impurities. Concerning the molybdenum alloy, the recrystallization temperature reaches 1350 DEG C, the high-temperature creep resistance is 1.5-2 times that of the rare earth molybdenum alloy, the high-temperature hardness is 1.5-2 times that of the TZM molybdenum alloy and the wear resistance is 2-4 times that of the TZM molybdenum alloy. The preparation process is simple and is easily controlled; and the molybdenum alloy has fine and more uniformly distributed reinforced grains and the composite can be prepared under the condition of the process for producing the molybdenum alloy through conventional powder metallurgy; and therefore the molybdenum alloy has very extensive application prospect.