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研究了０．１～０．６ａｔ％ＲＥ元素对Ｐｄ的力学性能的影响。稀土不仅提高Ｐｄ的室温强度和弹性模量，也提高Ｐｄ的高温瞬时强度、蠕变寿命和激活能以及Ｐｄ的延伸率。在稀浓度范围内，强度性质随浓度呈线性增高。按０．１ａｔ％ＲＥ归一化处理ＰｄＲＥ合金强度性质，发现轻稀土元素对强度性质的影响高于重稀土元素，而Ｅｕ、Ｙｂ、Ｃｅ对强度性质有反常的影响：在所有Ｐｄ－ＲＥ合金中，Ｐｄ－Ｅｕ合金有最高的强度性质，其次为Ｐｄ－Ｙｂ和Ｐｄ－Ｃｅ合金。稀土在合金中的作用机制，如净化杂质，提高再结晶温度，细化晶粒，膨胀晶格，提高原子间结合力，增大位错密度与降低堆垛层错层，通过内氧化形成稳定稀土氧化物等被观察到了。它们对Ｐｄ－ＲＥ合金的强度性质和高延伸率作出了贡献。
The effect of 0.1 ~ 0.6at% RE on the mechanical properties of Pd was studied. Rare earths not only improve the room temperature strength and elastic modulus of Pd, but also improve the high temperature transient strength, creep life and activation energy of Pd and the elongation of Pd. In the dilute concentration range, the intensity increases linearly with concentration. The strength properties of PdRE alloy were normalized by 0.1at% RE. It was found that the effect of light rare earth elements on the strength properties was higher than that of heavy rare earth elements. However, Eu, Yb and Ce had an anomalous effect on the strength properties. In all Pd-RE alloys , Pd-Eu alloys have the highest strength properties, followed by Pd-Yb and Pd-Ce alloys. The mechanism of rare earth in the alloy, such as purifying impurities, raising the recrystallization temperature, refining the grains, expanding the lattice, increasing the binding force between atoms, increasing the dislocation density and reducing the stacking layer, and stabilizing by internal oxidation Rare earth oxides have been observed. They contribute to the strength properties and high elongation of Pd-RE alloys.