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含氮Fe-Mn合金的阻尼性能和抗腐蚀性能

EFFECT OF NITROGEN ON DAMPING AND CORROSIVE PROPERTIES OF Fe-Mn ALLOYS

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【作者】 于学勇华征潇程凤军李宁董守军

【Author】 YU Xue-yong~1 HUA Zheng-xiao~1 CHENG feng-jun~2 LI-Ning~2 DONG Shou-jun~2 (1.Mechatronics Engineering Department,Changshu Institute of Technology,Changshu 215500,China; 2.College of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065,China)

【机构】 常熟理工学院机电工程系四川大学制造科学与工程学院四川大学制造科学与工程学院 常熟 215500常熟 215500成都 610065

【摘要】 通过内耗检测技术研究了氮对Fe-14.1Mn和Fe-16.5Mn合金阻尼性能及对Fe-Mn系合金相组成和抗腐蚀性能的影响。结果表明:Fe-14.1Mn比Fe-16.5Mn合金具有更高的阻尼性能;合金中加入质量分数为0.2%的氮,两种合金的阻尼性能略有改变,合金在固溶处理时,发生了γ-ε转变,转变生成的马氏体越多,合金的阻尼性能越好;并且含氮合金在1mol/L硫酸水溶液中的抗腐蚀性能提高2倍。

【Abstract】 The influence of nitrogen on the damping capacity of Fe-14.1Mn and Fe-16.5Mn alloys was studied using amplitude-dependent internal friction technique.The effect of nitrogen on phase constitution,mechanical properties and corrosion resistance was investigated.The Fe-14.1Mn alloy possessed a much higher level of damping capacity than the Fe-16.5Mn alloy.The addition of approximately 0.2 wt.% of nitrogen slightly affected the damping capacity of the Fe-14.1Mn alloy and increased the damping capacity in the Fe-16.5Mn alloy.The more austenite converted to martensite,the better damping capacity was obtained after heat treatment.The corrosion resistance of both alloys in 1mol/L sulphuric acid solution was improved by more than two times due to nitrogen alloying.

【关键词】 Fe-Mn合金阻尼性能ε马氏体腐蚀
【Key words】 Fe-Mn alloyDamping capacityNitrogenε-martensiteCorrosion
  • 【文献出处】 腐蚀与防护 ,Corrosion & Protection , 编辑部邮箱 ,2006年12期
  • 【分类号】TG174.2
  • 【下载频次】83
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