Pt-Pd-Rh合金的高温力学性能

High-temperature Mechanical Properties of Pt-Pd-Rh Alloys

在Ｐｔ－４Ｐｄ－３５Ｒｈ合金中将Ｐｄ含量增至１５ｗｔ％时，研究了Ｐｄ及少量Ｃｅ、Ｒｕ对合金在１０００℃以下高温力学性能的影响。实验结果表明在低温下Ｐｄ有一定的强化作用，但降低了合金的抗蠕变性能，而在合金中分别添加Ｃｅ（＜０１ｗｔ％）、Ｒｕ（＜０５ｗｔ％）后，合金的高温力学性能得以改善并优于Ｐｔ－４Ｐｄ－３５Ｒｈ合金，且Ｃｅ对合金的强化作用优于Ｒｕ。

The paper reports on the influence of adding Pd, small Ce, Ru on high-temperature mechanical properties of Pt-4Pd-35Rh alloy at <1000℃, the Pd content increased to 15wt%. The resultants showed: Pd strengthened alloys in some degree at lower temperature but decreased their creep resistance. High-temperature mechanical properties of alloys were improved by adding Ce (<01wt%) or Ru (<05wt%), furthermore, the strengthening of Ce was better than that of Ru.