冷轧变形铝锡复合材料的再结晶  

Investigation on Re-crystallization of Cold Rolled Al-Sn Composite

作　　者：崔国明[1] 曾建民[1] 何国强[1] 郑进城[1] 

机构地区：[1]广西大学有色金属及材料加工新技术教育部重点实验室

出　　处：《特种铸造及有色合金》2007年第S1期176-178,共3页Special Casting & Nonferrous Alloys

基　　金：广西科技厅项目(桂科工0443001-1)

摘　　要：基于冷轧变形铝锡合金再结晶过程中硬度变化的敏感性,比较研究了Al-10Sn和Al-10Sn/TiB2复合轴瓦材料的再结晶动力学。通过硬度-时间软化曲线,计算了两种材料的再结晶激活能,比较了两种材料的再结晶组织。结果表明,硼化钛颗粒的存在提高了材料再结晶温度约50℃,使材料的热稳定性提高。Al-10Sn和Al-10Sn/TiB2的再结晶激活能分别为83.16kJ/mol和92.98kJ/mol。Re-crystallization dynamics of bearing materials of Al-10Sn and Al-10Sn/TiB2 were investigated based on the sensitiveness in hardness of the materials during re-crystallization.Re-crystallizationactivation energyof the materials were calculated through hardness vs.time curves,and microstructures of the re-crystallization for the two materials were compared by means of metallography.The results indicate that the existence of TiB2particles increases the re-crystallization temperature by up to 50 ℃,that is to say,increasing the stabilization in elevated temperature.Re-crystallizationactivation energyof Al-10Sn and Al-10Sn/TiB2 are 83.16 kJ/mol and 92.98 kJ.mol,respectively.

关 键 词：铝锡合金 再结晶 复合材料 

分 类 号：TG335.12[金属学及工艺—金属压力加工]