| 含氮铁锰合金阻尼性能和力学性能的研究 |
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| 引用本文： | 于学勇,程凤军,杨廷贵.含氮铁锰合金阻尼性能和力学性能的研究[J].兵器材料科学与工程,2007,30(1):63-65. |
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| 作者姓名： | 于学勇 程凤军 杨廷贵 |
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| 作者单位： | 常熟理工学院,机电工程系,江苏,常熟,215500;四川大学,制造科学与工程学院,四川,成都,610065 |
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| 基金项目： | 于学勇（1975-）,男,辽宁人,讲师,主要研究方向为金属功能材料.电话：0512-55896970.E-mail：fanch10@126.com. |
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| 摘 要： | 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bσ从465 MPa增加到695 MPa,η从3.7%增加到12.6%,而Fe-14.1Mn合金的bσ从470 MPa增加到690 MPa,η从5.4%降到4.0%。
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| 关 键 词： | Fe-Mn合金 阻尼性能 氮 力学性能 ε马氏体 |
| 文章编号： | 1004-244X（2007）01-0063-03 |
| 修稿时间： | 2006-06-16 |
Influence of nitrogen on damping and mechanical properties of Fe-Mn alloys |
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| YU Xue-yong,CHENG Feng-jun,YANG Ting-gui.Influence of nitrogen on damping and mechanical properties of Fe-Mn alloys[J].Ordnance Material Science and Engineering,2007,30(1):63-65. |
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| Authors: | YU Xue-yong CHENG Feng-jun YANG Ting-gui |
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| Affiliation: | 1.Mechantronics Engineering Department, Changshu Institute of Technology, Changshu 215500,China; 2.College of Manufacturing Science and Engineering ,Sichuan University ,Changdu 610065 ,China |
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| Abstract: | The effect of nitrogen on the damping capacity of Fe-14.1Mn and Fe-16.SMn wt.% alloys was studied by means of the amplitude-dependent internal friction technique, and the influence of nitrogen on phase constitution, mechanical properties was also investigated. It was found that the Fe-14.1Mn alloy possesses higher level of damping capacity than the Fe-16.5Mn alloy. The addition of 0.2% of nitrogen slightly affects the damping capacity of the Fe-14.1Mn alloy and the Fe-16.5Mn alloy. At the same time, the ultimate tensile strength of the Fe-16.5Mn alloy increases from 465 to 695 MPa, and the uniform elongation increases from 3.7% to 12.6%. The ultimate tensile strength of the Fe-14.1Mn alloy increases from 470 to 690 MPa due to nitrogen alloying, while the uniform elongation reduces from 5.4% to 4.0%. |
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| Keywords: | Fe-Mn alloys damping capacity nitrogen mechanical properties epsilon-martensite |
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