曾祥勇,李龙,周德敬

• 1:银邦金属复合材料股份有限公司江苏省金属层状复合材料重点实验室

摘要(Abstract)：

对不同压下量的冷轧复合4A60铝/08Al钢复合带材进行再结晶退火处理,研究了压下量、退火温度以及退火时间对复合带材中08Al钢的再结晶行为的影响。结果表明:压下量越大,相同退火时间内钢发生完全再结晶的平均晶粒尺寸越细小。晶粒长大过程中,钢的显微硬度值基本保持不变(105 HV左右),与压下量和退火制度的关系不大。随着压下量的增大,钢的再结晶速率加快,再结晶激活能降低,当压下量从30%增加至60%时,钢的再结晶激活能从285 k J/mol降低到175 k J/mol,降低了110 k J/mol。采用双曲线可以很好地描述08Al钢的再结晶激活能(Q)与真应变(e)之间的关系:Q=36.6+64.4/e(k J/mol,R2=0.985)。

关键词(KeyWords)： 冷轧复合;再结晶;晶粒尺寸;显微硬度;再结晶激活能

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划(863)(2013AA031301);; 国家国际科技合作专项项目(2013DFB50170);; 江苏省科技成果转化专项资金项目(BA2011038);; 江苏省重点实验室资助项目(BM2014006)

作者(Author): 曾祥勇,李龙,周德敬

DOI: 10.13289/j.issn.1009-6264.2015.08.014

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