Disconnection Motion in Low- and High-Angle Symmetrical Tilt Grain Boundaries in HCP Metal

被引：1

作者：

Pond, Robert C. ^{[1
]}

Hirth, John P.

Khater, Hassan A. ^{[2
]}

Serra, Anna ^{[3
]}

机构：

[1] Univ Exeter, Coll Engn Math & Phys Sci, North Pk Rd, Exeter EX4 4QF, Devon, England

[2] Assiut Univ, Fac Sci, Dept Chem, Assiut 71516, Egypt

[3] Univ Politecn Cataluna, Dept Matemat Applicada 3, Barcelona 08034, Spain

来源：

RECRYSTALLIZATION AND GRAIN GROWTH V | 2013年 / 753卷

关键词：

grain boundary shear; migration; disconnections; low-angle boundaries; high-angle boundaries; ALPHA-ZIRCONIUM; SHEAR;

D O I：

10.4028/www.scientific.net/MSF.753.125

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The structure of disconnections in symmetrical low- and high-angle [0001] tilt boundaries in an hcp metal are studied using atomic-scale simulation. Applied engineering strains cause such defects to move conservatively along the boundaries, producing coupled shear and migration. The Peierls stresses causing such motion are found to decrease precipitously through the transition from low- to high-angle boundaries. The reason underlying this behaviour is discussed.

引用

页码：125 / +

页数：2

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