钼合金粉末冶金研究进展

钼及其合金具有优异的高温力学性能，被广泛应用于冶金、机械、化工、航空和核工业等领域。粉末冶金是钼合金的主要制备方法。通过固溶强化、第二相强化、细晶强化等多种强化手段可以提高钼合金的力学性能，从而拓宽钼合金的应用范围。本文介绍了粉末冶金制备钼合金的研究进展，包括粉体制备方法、压制工艺及坯体烧结工艺等，讨论了钼合金的强韧化方法及其机理，并展望了粉末冶金法制备钼合金的发展方向，以期对钼合金的设计和制备提供一些思路。

Research progress of molybdenum alloys prepared by powder metallurgy

Molybdenum and molybdenum alloys prepared by the powder metallurgy method are widely used in metallurgy, machinery, chemical industry, aviation and nuclear industry, attributing to the outstanding mechanical properties at elevated temperatures. The mechanical properties of molybdenum alloys can be improved by solid-solution strengthening, second phase strengthening, fine grain strengthening, and other strengthening methods, broadening the application of molybdenum alloys. The research progress of molybdenum alloys prepared by powder metallurgy was introduced in this paper, including the powder preparation method, pressing process, and bulk sintering process. Moreover, the methods and mechanisms of strengthening and toughening for the molybdenum alloys were discussed in details. Finally, the development direction of molybdenum alloys prepared by powder metallurgy method was prospected to provide some ideas for the design and preparation of the molybdenum alloys.