期刊文献+

强磁场下亚共晶Al-Cu合金初生相形核与生长行为(英文) 被引量:1

Nucleation and growth behaviors of primary phase in hypoeutectic Al-Cu alloy in high magnetic field
下载PDF
导出
摘要 应用差热分析法研究了强磁场下Al-20.8%Cu(质量分数)亚共晶合金初生相形核与生长特性。差热分析曲线表明,初生相的形核温度随磁场强度的增大而降低,其生长速率则随磁场强度增大而增大。初生相枝晶由无磁场时无序生长转变为磁场下规则生长。研究表明,10T量级的磁场对Al晶体形核驱动力的影响可以忽略,初生相形核温度的降低主要归结为磁场下固液界面自由能的增加。枝晶形貌转变则源于磁场对熔体流动的抑制及铝晶体的磁各向异性。 应用差热分析法研究了强磁场下Al-20.8%Cu(质量分数)亚共晶合金初生相形核与生长特性。差热分析曲线表明,初生相的形核温度随磁场强度的增大而降低,其生长速率则随磁场强度增大而增大。初生相枝晶由无磁场时无序生长转变为磁场下规则生长。研究表明,10T量级的磁场对Al晶体形核驱动力的影响可以忽略,初生相形核温度的降低主要归结为磁场下固液界面自由能的增加。枝晶形貌转变则源于磁场对熔体流动的抑制及铝晶体的磁各向异性。
出处 《中国有色金属学会会刊:英文版》 CSCD 2012年第S1期1-6,共6页 Transactions of Nonferrous Metals Society of China
基金 Project (2011CB610404) supported by the National Basic Research Program of China Project (51001068) supported by the National Natural Science Foundation of China Project (20110490712) supported by China Postdoctoral Science Foundation Project (50911130365) supported by Projects of International Cooperation and Exchanges NSFC, China
关键词 AL-CU合金 强磁场 形核 过冷 差热分析 Al-Cu alloy high magnetic field nucleation undercooling differential thermal analysis
  • 相关文献

参考文献12

  • 1Mikelson AE,Karklin YK.Control of crystallization process by means of magnetic fields. Journal of Crystal Growth . 1981
  • 2Dinsdale AT.SGTE data for pure elements. Calphad Computer Coupling of Phase Diagrams and Thermochemistry . 1991
  • 3Lipton J,Kurz W,Trivedi R.Rapid dendrite growth in undercooled alloys. Acta Metallurgica . 1987
  • 4Y. Aoki,S. Hayashi and H. Komatsu.Directional solidification of aluminium-silicon eutectic alloy in a magnetic field. Journal of Crystal Growth . 1983
  • 5LIC,YANGH,RENZ,et al.On nucleationtemperature of pure aluminum in magnetic fields. Progress in Electromagnetics Research Letters . 2010
  • 6YOUDELISW V,DORWARDR C.Directionalsolidification of aluminum-copper alloys in a magneticfield. Canadian Journal of Physics . 1966
  • 7GAOM C,BENNETTT A,,ROLLETTA D,et al.Theeffects of applied magnetic fields on theα/γphaseboundary in the Fe-Si system. Journal of PhysicsD:Applied Physics . 2006
  • 8P.Terizieff,R.Luck.Magnetic Investigations in Liquid Al–In. Journal of Alloys and Compounds . 2003
  • 9Chen C,Fei B,Peng S. et al.Nonisothermal crystallization and melting behavior of poly (3-hydroxybutyrate) and maleated poly (3-hydroxybutyrate). European Polymer Journal . 2002
  • 10ZHANG Y K,ZHOU Y L,GAO J R,HE J C.Undercooling of p Cu and Ge melts in a static magnetic field. Materials Scie Forum . 2010

同被引文献13

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部