采用内耗检测技术研究了氮对Fe-14.1Mn和Fe-16.5Mn合金的阻尼性能的影响,也研究了氮对Fe-Mn系合金的相组成和力学性能的影响.研究结果表明:Fe-14.1Mn比Fe-16.5Mn合金具有更高的阻尼性能;合金中分别加入质量分数为0.2%的氮,两种合金的阻尼性能略有改变,同时Fe-16.5Mn合金的σb从465 MPa增加到695 MPa,η从3.7%增加到12.6%,而Fe-14.1Mn合金的σb从470 MPa增加到690 MPa,η从5.4%降到4.0%.
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