Linking plastic deformation to recrystallization in metals using digital microstructures

被引：52

作者：

Loge, R. ^{[1
]}

Bernacki, M. ^{[1
]}

Resk, H. ^{[1
]}

Delannay, L. ^{[2
]}

Digonnet, H. ^{[1
]}

Chastel, Y. ^{[1
]}

Coupez, T. ^{[1
]}

机构：

[1] Ctr Mat Forming, CEMEF, MINES ParisTech, Sophia Antipolis, France

[2] Catholic Univ Louvain, CESAME MEMA, B-3000 Louvain, Belgium

来源：

PHILOSOPHICAL MAGAZINE | 2008年 / 88卷 / 30-32期

关键词：

level set; recrystallization; moving boundary; finite element; meshing; remeshing; crystal plasticity; large deformation; nucleation; JMAK;

D O I：

10.1080/14786430802502575

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Procedures for synthesizing digital polycrystalline microstructures are illustrated, from either 2D statistical data or 3D deterministic data. Finite element meshes representing the digital microstructures are generated using anisotropic and adaptive mesh refinement close to the grain boundaries. Digital mechanical testing based on crystal plasticity theory provides an estimate of the spatial distribution of strain energy within the polycrystalline aggregate. The latter quantity is used as an input for modelling subsequent static recrystallization, grain boundary motion being described within a level set framework. The kinetic law for interface motion accounts for both the stored strain energy and the grain boundary energy. The possibility to include nucleation events within the level set framework is illustrated, as well as the evolving topology of the grain boundary network. The recrystallization model is tested in different configurations and compared to the Johnson-Mehl-Avrami-Kolmogorov (JMAK) theory.

引用

页码：3691 / 3712

页数：22

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