合金元素对CuAl系阻尼合金组织的影响
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摘要
利用扫描电镜(SEM),比较了8种成分的CuAl系阻尼合金金相组织;利用示差热分析方法(DTA)分析了各试样相变温度;利用自由衰减法测得各试样的阻尼性能参数。分析了试样中热弹性马氏体的形态,研究了Mn和Ni元素对CuAl系阻尼合金的相变点及金相组织的影响。试验结果表明:Mn的作用类似与Ni;Mn和Ni的联合使用可以得到细条片状马氏体;在高温高阻尼合金中,通过Mn与Ni的合理搭配,可以在较宽的温度范围内调整合金的相变点。
The structures of eight kinds of copper aluminum damping alloys are compared with each other by means of SEM. The transformation temperature of every sample is attained by DTA approach. And the damping property parameter Q -1 is measured by free damping approach .The influence of elements Mn,Ni on the structures is studied by analysizing the quantity and configuration of thermoelastic martensites in samples .The results show that the effect of Mn is similar to Ni,that thin and flakily martensite is attained after adding Mn,together with Ni, and at the same time the transformation temperature is increased, and that transformation temperature of alloys can be adjusted within a broad domain by the proper collocation of Mn and Ni.
The structures of eight kinds of copper aluminum damping alloys are compared with each other by means of SEM. The transformation temperature of every sample is attained by DTA approach. And the damping property parameter Q -1 is measured by free damping approach .The influence of elements Mn,Ni on the structures is studied by analysizing the quantity and configuration of thermoelastic martensites in samples .The results show that the effect of Mn is similar to Ni,that thin and flakily martensite is attained after adding Mn,together with Ni, and at the same time the transformation temperature is increased, and that transformation temperature of alloys can be adjusted within a broad domain by the proper collocation of Mn and Ni.
引文
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〔2〕 贡长生,张克立.新型功能材料〔M〕.北京:化学工业出版社,2001
〔3〕 田莳.功能材料〔M〕.北京:北京航空航天大学出版社,1995
〔4〕 吴波,李惠,孙科学.形状记忆合金在土木工程中的应用〔J〕.世界地震工程,1999,9(3):4
〔5〕 杨大智.功能材料与智能系统〔M〕.天津:天津大学出版社,2000
〔6〕 RichardOC.智能材料、器件、结构及应用〔M〕.姜德生.武汉:武汉工业出版社,2000
〔7〕 喻利花.显微组织对CuAlBeX合金阻尼性能的影响〔J〕.热加工工艺,1998,(6):15
〔8〕 喻利花,许俊华.Cu Al Be X合金阻尼性能研究〔J〕.特种铸造及有色合金,1998,(3):30
〔9〕 DutkiewiczJ,etal.EffectofγprecipitatesonthemartensitetransformationinCu Al Mnalloys〔J〕.MaterSciEngineering,1995,A98:119～128
〔10〕 KainumaR,etal.Thermoelasticmartensiteandshapememoryeffectinductility〔J〕.MetTransA,1996,27A:2187
〔11〕 GilFJ,etal.Kineticgraingrowthinβcoppershapememoryalloys〔J〕.MaterSciEngineering,1998,A241:114
〔12〕 舟久保,熙康.形状记忆合金〔M〕.千东范.北京:机械工业出版社,1992
〔13〕 王明明.马氏体相界面的运动〔J〕.江汉大学学报,1999,16(6):62
〔14〕 徐祖耀.形状记忆材料与阻尼材料〔A〕.'97中国材料研讨会论文集:能源材料、智能材料和梯度材料新进展〔C〕.北京:冶金工业出版社,1998
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