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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
【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.
【Key words】 Fe-Mn alloy; Damping capacity; Nitrogen; ε-martensite; Corrosion;
- 【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