摘要:
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采用晶体取向分布函数(ODF)对织构进行检测及金相组织观察,研究不同的均匀化退火制度对纯铝铸轧-冷轧板材各向异性的影响。结果表明,对1100板材进行不同方案的均匀化退火,当均匀化退火制度为580℃/13 h时,板材立方织构组分比例迅速下降,同时铜织构也有所下降,但散漫度较大,同时晶粒细小均匀,随机织构比例增大,制耳率低于2.5%,板材各向异性减小。均匀化退火制度主要通过改变板材织构组分、比例、晶粒度以及改变Fe和Si组织形态的变化等影响纯铝铸轧板材的各向异性。
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Influence of homogenizing annealing on anisotropy of aluminum sheet with roll-casting and cold rolling was investigated by means of texture analysis using orientation distribute function and metallographical structure observation.The results show that the content of both cubic texture {001}<100> and copper {112}<111> depress and a large amount of random texture are obtained when annealing at 580 ℃/13 h.Because of low anisotropy and homogeneous fine grain structure,earing rate of the plate is under 2%.Anisotropy of the roll-casting sheet is influenced by texture content,grain size and structure of Fe and Si which are changed by different homogenizing annealing processes.
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基金项目:
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江苏省自然科学基金重点项目(BK2007707)
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作者简介:
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参考文献:
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