1.The toughening mechanism in the lanthana doped molybdenum alloy mainly includes fine grain toughening and particle toughening.

1.稀土氧化钼合金中的主要韧化机为：细增韧和颗粒增韧。

2.The molybdenum alloy reinforced by lanthana particles with the sizes of nanometer and micron was prepared by powder metallurgy.

2.采用粉末冶金法了微米尺寸和准纳米尺寸的氧化粒子增强钼合金。