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金属学报  2008 

多晶铝轧制变形的织构演变II.理论模拟

, PP. 1322-1331

Keywords: 多晶铝,轧制变形,初始织构,自由分布

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Abstract:

采用Taylor类型多晶体塑性变形模型,模拟了初始自由分布和近似立方织构多晶铝的轧制织构演变.应用取向线分析方法将不同模型的理论计算结果进行了系统分析,并与实测轧制织构进行了比较.结果表明在低轧制变形程度时,完全限制(FC)模型计算结果的取向分布较其它模型更符合实际结果.在较高程度轧制变形时,对于初始自由分布的多晶铝轧制试样,lath模型与实验符合较好;而对于初始具有近似立方织构的样品,使用混合模型结果较佳.

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