Geometry of polycrystals and microstructure
Geometry of polycrystals and microstructure
复制标题
多晶的几何形状和微观结构
DOI:
10.1051/matecconf/20153302007
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发表时间:
2015
影响因子:
--
通讯作者:
Ball J
中科院分区:
文献类型:
--
作者:
Ball J
We investigate the geometry of polycrystals, showing that for polycrystals formed of convex grains the interior grains are polyhedral, while for polycrystals with general grain geometry the set of triple points is small. Then we investigate possible martensitic morphologies resulting from intergrain contact. For cubic-to-tetragonal transformations we show that homogeneous zero-energy microstructures matching a pure dilatation on a grain boundary necessarily involve more than four deformation gradients. We discuss the relevance of this result for observations of microstructures involving second and third-order laminates in various materials. Finally we consider the more specialized situation of bicrystals formed from materials having two martensitic energy wells (such as for orthorhombic to monoclinic transformations), but without any restrictions on the possible microstructure, showing how a generalization of the Hadamard jump condition can be applied at the intergrain boundary to show that a pure phase in either grain is impossible at minimum energy.
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DOI:
--
发表时间:
2005
期刊:
SIGA
影响因子:
--
作者:
S. Khuller
通讯作者:
S. Khuller
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
A. Manzoni;K. Chastaing;A. Denquin;P. Vermaut;R. Portier
通讯作者:
R. Portier
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
R. Shield
通讯作者:
R. Shield
影响因子:
2.5
作者:
T. Iwaniec;G. Verchota;A. Vogel
通讯作者:
A. Vogel
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
Jean E. Taylor
通讯作者:
Jean E. Taylor