| Nb,Ti和Cu对Fe-13Cr-2.5Mo合金阻尼与腐蚀性能的影响 |
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| 引用本文： | 胡小锋,李秀艳,张波,戎利建,李依依. Nb,Ti和Cu对Fe-13Cr-2.5Mo合金阻尼与腐蚀性能的影响[J]. 金属学报, 2009, 45(6) |
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| 作者姓名： | 胡小锋 李秀艳 张波 戎利建 李依依 |
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| 作者单位： | 中国科学院金属研究所,沈阳,110016 |
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| 摘 要： | 采用动态机械分析仪(DMA)和场发射扫描电镜(FESEM)研究了1.0%Nb,1.0%Ti和0.5%Cu(质量分数)添加对Fe-13Cr-2.5Mo合金阻尼性能和腐蚀性能的影响.结果表明:添加Nb的合金中,形成的大量(Nb,Mo)C相会阻碍磁畴壁的运动,严重影响合金的阻尼性能;当应变振幅大于3.5×10-5时,析出相(Nb,Mo)C与位错的交互作用会引起静滞后型位错阻尼Qdis-1,致使在高应变振幅区合金阻尼性能明显提高;加入Ti或Cu后合金晶界碳化物明显减少,而晶内析出相明显增多,导致合金的阻尼性能在低应变振幅区略有降低.点蚀结果表明,三种合金元素的添加都能提高合金的耐蚀性能,其中添加1.0%Ti的合金可同时获得良好阻尼性能和耐蚀性能.
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| 关 键 词： | Fe-Cr-Mo合金 阻尼性能 析出相 点蚀 |
INFLUENCES OF ADDITIONS OF Nb,Ti AND Cu ON DAMPING CAPACITY AND CORROSION RESISTANCE OF Fe-13Cr-2.5Mo ALLOY |
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| HU Xiaofeng,LI Xiuyan,ZHANG Bo,RONG Lijian,LI Yiyi. INFLUENCES OF ADDITIONS OF Nb,Ti AND Cu ON DAMPING CAPACITY AND CORROSION RESISTANCE OF Fe-13Cr-2.5Mo ALLOY[J]. Acta Metallurgica Sinica, 2009, 45(6) |
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| Authors: | HU Xiaofeng LI Xiuyan ZHANG Bo RONG Lijian LI Yiyi |
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| Affiliation: | HU Xiaofeng,LI Xiuyan,ZHANG Bo,RONG Lijian,LI Yiyi Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | Fe-Cr base high damping alloys(HDA).as the typical ferromagnetic type HDA,have been well investigated in a long history due to their merits in low cost and superior workability like steels,and are widely applied for suppression of noise or vibration in many industrial fields.The magnetoelastic coupling in ferromagnetic materials is well known to be an important source of internal friction, which could produce a high damping capacity.The damping mechanism has been mainly attributed to the stress-induced irre... |
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| Keywords: | Nb Ti |
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