冷轧变形铝锡复合材料的再结晶  

Recrystallization of Cold Rolled Al-Sn Composites

作　　者：庞兴志[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》2008年第4期309-311,共3页Special Casting & Nonferrous Alloys

基　　金：广西科技厅资助项目(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TiB2/Al-10Sn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,TiB2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TiB2/Al-10Sn的再结晶激活能分别为83.16kJ/mol和92.98kJ/mol。Recrystallizatton dynamics of Al-10Sn and TiB2/Al-10Sn composites was evaluated based on the sensitivities in hardness of the cold rolled aluminum alloy during recrystallization process.The recrystalli-zation activation energy of the two materials were calculated by hardness via time soften curves,and the re-crystallization structure in the two materials was observed.It is found that TiB2 particle can improve the thermal stability of the composites as a result of increasing recystallization temperature of composites by about 60℃.In addition,the recrystallization activation energy of Al-10Sn and TiB2/Al-10Sn composites is 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]