摘要
应用TEM和晶体取向分布函数方法研究和分析了预变形和退火工艺对高纯铝箔立方织构的影响。研究结果表明 ,预变形及退火主要通过影响晶体内的储存能大小 ,来影响Fe、Si的析出过程 ,影响成品箔材中立方织构 { 10 0 }〈0 0 1〉取向密度的大小。由于成品退火前Fe、Si能充分固溶在铝基体中 ,成品低温退火阶段可促使Fe、Si析出 ,增加立方取向晶粒的形核率 ,使成品在高温退火阶段晶粒沿立方取向择优长大 。
The effect of pre deformation and annealing on cube texture of high parity aluminium foils has been investigated by means of TEM and method of orientation distribution functions (ODFs).The results showed that the magnitude of stored energy in Al foils was affected by predeformation and annealing,which influenced the precipitation of impurities Fe and Si.While Fe and Si resolve into the Al matrix before final annealing,it can increase the number of cube nucleus during the low temperature period of two stages annealing.The nucleus can prefer to grow at high temperature stage of final annealing,and the cube texture in high purity Al foils became very strong.
出处
《金属热处理》
CAS
CSCD
北大核心
2001年第5期12-14,共3页
Heat Treatment of Metals
基金
国家"973"重点基础研究发展规划项目!(G1 9990 6490 8)
国家教委博士点基金!(970 5331 6)
关键词
高纯铝箔
预变形
退火
立方织构
high purity Al foils
pre deformation
annealing
cube texture
