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

作　　者：于学勇[1] 华征潇[1] 程凤军[2] 李宁[2] 董守军[2] 

机构地区：[1]常熟理工学院机电工程系,常熟215500 [2]四川大学制造科学与工程学院,成都610065

出　　处：《腐蚀与防护》2006年第12期614-616,共3页Corrosion & Protection

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。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 氮 Ε马氏体 腐蚀 

分 类 号：TG135.7[一般工业技术—材料科学与工程] TG174.2[金属学及工艺—合金]