ABSTRACT Effects of a long annealing up to 10 h were investigated on damping capacity and phase evolutions in FeMn-based alloys. The damping capacity in the Fe17.5Mn alloy rose with the annealing time. A highest damping capacity was obtained in the Fe16.5Mn10.5Cr alloy after 2 h annealing. The highest damping capacity was comparable in Fe17.5Mn and Fe16.5Mn10.5Cr alloys. A positive relationship between the damping capacity and the stacking faults existed in both the Fe17.5Mn and Fe16.5Mn10.5Cr alloys annealed for above 2 h. To reduce the amount of α′-martensites was favourable to the further improvement of damping capacity. The α′-martensites clustered locally in the Fe17.5Mn alloy, but they distributed inside the ϵ-martensite bands in the Fe16.5Mn10.5Cr alloy.

中文翻译：

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通过长时间退火显着提高 FeMn 基合金的阻尼能力

摘要 研究了长达 10 小时的长时间退火对 FeMn 基合金的阻尼能力和相演变的影响。Fe17.5Mn 合金的阻尼能力随着退火时间的增加而增加。Fe16.5Mn10.5Cr 合金在退火 2 小时后获得了最高的阻尼能力。Fe17.5Mn 和 Fe16.5Mn10.5Cr 合金的最高阻尼能力相当。在退火时间超过 2 小时的 Fe17.5Mn 和 Fe16.5Mn10.5Cr 合金中，阻尼能力与堆垛层错之间存在正相关关系。减少α'-马氏体的含量有利于阻尼能力的进一步提高。α'-马氏体局部聚集在 Fe17.5Mn 合金中，但它们分布在 Fe16.5Mn10.5Cr 合金的 ϵ-马氏体带内。