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首页> 外文期刊>Journal of Materials Engineering and Performance >Optimization of the Severe Plastic Deformation Processes for the Grain Refinement of Al6060 Alloy Using 3D FEM Analysis
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Optimization of the Severe Plastic Deformation Processes for the Grain Refinement of Al6060 Alloy Using 3D FEM Analysis

机译：3D FEM分析优化AL6060合金晶粒细化的严重塑性变形工艺

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摘要

An analysis in 3D by means of the finite element method was carried out to study three processes for producing bulk fine-grained materials: dual equal channel angular pressing (DECAP), equal channel angular pressing, and multi-axial forging. For this purpose, a commercial Al6060 alloy in solution heat treatment conditions was utilized. The effect of different values of the coefficients of friction (mu), the plastic flow, the strain hardening behavior, and the effective strain were analyzed. The results obtained from the simulation are in good agreement with the experimental studies. The results indicate that the DECAP process improves the plastic flow and promotes homogeneous strain distribution and grain refinement due to an increase in components of the shear deformation, back-pressure effect, and the diminution of the coefficient of friction.
机译：通过有限元方法进行3D的分析，研究了三种生产块状细粒材料的三种方法：双等沟道角压（凹陷），等沟角压和多轴锻造。 为此目的，利用溶液热处理条件的商业AL6060合金。 分析了摩擦系数（mu），塑料流动，应变硬化行为和有效菌株的不同值的影响。 从模拟中获得的结果与实验研究吻合良好。 结果表明，由于剪切变形，背压效应的部件增加，凹面过程改善了塑料流动，促进均匀应变分布和晶粒细化，以及摩擦系数的减少。

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