钴元素对镍-镓-铁系铁磁性形状记忆合金相变及阻尼性能的影响
Effect of Co on Phase Transformation and Damping Properties of Ni-Ga-Fe Ferromagnetic Shape Memory Alloys
摘 要
采用低频扭摆仪研究了铁磁性形状记忆合金Ni53Ga27Fe20和Ni53Ga27Fe15Co5合金的阻尼性能与应变振幅、频率及温度的关系,研究了钴元素对镍-镓-铁形状记忆合金阻尼性能的影响.结果表明:室温下Ni53Ga27Fe15Co5合金的显微组织为三种形态的马氏体,而Ni53Ga27Fe20合金为单一形态马氏体;前者的马氏体相变与逆相变的起始温度为59.2℃与58.7℃,结束温度为35.4℃与72.2℃;后者的起始温度为69.3℃与93.6℃,结束温度为60.2℃与102.6℃;Ni53Ga27Fe20合金在室温下为滞弹性阻尼;Ni53Ga27Fe15Co5合金室温下当应变振幅小于5.0×10-5时为滞弹性阻尼,当应变振幅大于5.0×10-5时为静滞后型阻尼;Ni53Ga27Fe15Co5合金的热弹性马氏体相变温度较Ni53Ga27Fe20合金的降低,在相变温度范围内即具有高阻尼特性,最大阻尼值为0.072.
马氏体相变
阻尼性能
ferromagnetic shape memory alloy
martensite transformation
damping property
Abstract
The correlations between damping properties and strain amplitude as well as frequency and temperature of the Ni53Ga27Fe20 ferromagnetic shape memory alloy(FSMA)and the Ni53Ga27Fe15Co5 FSMA were investigated by using low frequency torsion pendulum.The effect of Co on damping properties of the Ni-Ga-Fe FSMA was studied.The results show that the microstructure of the Ni53Ga27Fe15Co5 alloy at room temperature was martensite with three forms,and that of the Ni53Ga27Fe20 alloy was martensite with single form.The initial temperatures of martensite transformation and reverse transformation of the former were 59.2℃ and 58.7℃,and the finish temperatures were 35.4℃ and 72.2℃.The initial temperatures of martensite transformation and reverse transformation of the latter alloy were 69.3℃ and 93.6℃,and the finish temperatures were 60.2℃ and 102.6℃.The Ni53Ga27Fe20 alloy was anelastic damping at room temperature.The Ni53Ga27Fe15Co5 alloy was anelastic damping when the strain amplitude was less than 5.0×10-5 and static hysteretic damping when the strain amplitude was more than 5.0×10-5 at room temperature.The temperature of thermoelastic martensite phase transformation of the Ni53Ga27Fe15Co5 alloy was lower than that of the Ni53Ga27Fe20 alloy.The Ni53Ga27Fe15Co5 alloy had high damping properties with the maximum value of 0.072 in the phase transformation temperature range.
中图分类号 TB535.1 TG113.226 TG146.15
所属栏目 试验研究
基金项目
收稿日期 2009/5/16
修改稿日期 2009/12/10
网络出版日期
作者单位点击查看
备注夏明六(1982-),男,安徽巢湖人,硕士研究生.
引用该论文: XIA Ming-liu,MA Li-qun,CHENG Jiang-hui,PAN An-xia,DING Yi. Effect of Co on Phase Transformation and Damping Properties of Ni-Ga-Fe Ferromagnetic Shape Memory Alloys[J]. Materials for mechancial engineering, 2010, 34(7): 23～26
夏明六,马立群,程江辉,潘安霞,丁毅. 钴元素对镍-镓-铁系铁磁性形状记忆合金相变及阻尼性能的影响[J]. 机械工程材料, 2010, 34(7): 23～26
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【2】OIKAWA K,OTA T,OHMORI T,et al.Magnetic and martensitic phase transitions in ferromagnetic Ni-Ga-Fe shape memory alloys[J].Applied Physics Letters,2002,81:5201-5203.
【3】SANTAMARTA R,FONT J,MUNTASELL J,et al.Effect of ageing on the martensitic transformation of Ni-Fe-Ga alloys[J].Scripta Materialia,2006,54(6):1105-1109.
【4】夏明六,马立群,阮爱杰,等.铁磁性形状记忆合金Ni50Ga27Fe17Co6的阻尼性能[J].机械工程材料,2009,33(3):50-52.
【5】郑红星,刘剑,夏明许,等.Ni-Fe-Ga磁致形状记忆合金中间马氏体相变[J].物理学报,2005,14(2):1719-1721.
【6】徐祖耀.相变内耗与伪滞弹性[J].金属学报,2003,39(11):1121-1126.
【7】冯端,王业宁,丘第荣.金属物理[M].北京:科学出版社,1975:603-608.
【8】MORONI M O,SALDIVIA R,SARRAZIN M,et al.Damping characteristics of a CuZnAlNi shape memory alloy[J].Materials Science and Engineering A,2002,335:313-319.
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