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本文介绍了锆、锗加入元素对恒弹性合金性能与组织结构的影响情况。 恒弹性合金的性能,由于Zr、Ge的适量加入,具有明显的改善与提高,尤其是机械品质因素Q值显著增加。Zr对于恒弹性合金组织的影响主要是通过生成的Ni_5Zr金属间化合物共晶体,从而改善了Ni_3Ti(η相)沉淀相分布形态及抑制其成长速度来达到的。实验证明:恒弹性合金中Zr、Ge的最佳含量在:Zr～0.80％,Ge～0.1％。 本文从恒弹性合金组织结构特点出发,初步探讨了Zr、Ge加入元素对于性能作用机理的若干问题。
This article describes the zirconium, germanium added elements on the performance of permanent elastic alloys and the impact of the organizational structure. Constant elastic alloy performance, due to the amount of Zr, Ge added, with significant improvement and improvement, especially the mechanical quality factor Q value increased significantly. The effect of Zr on the microstructure of the constant elastic alloy is mainly achieved through the formation of the Ni_5Zr intermetallic compound eutectoid, which improves the morphology of Ni_3Ti (η phase) precipitation phase and inhibits its growth rate. The experimental results show that the optimum contents of Zr and Ge in the constant elastic alloy are: Zr ~ 0.80%, Ge ~ 0.1%. In this paper, based on the characteristics of the structure of constant elastic alloy, some problems about the action mechanism of Zr and Ge added elements are discussed preliminarily.