On the creep transition from superplastic behavior to nanocrystalline behavior

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:655

Article

Mohamed, Farghalli A.¹ 

[1] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA

关键词: Boundary sliding;    Creep transition;    Dislocation climb;    Dislocation pileup;    Nanocrystalline materials;    Superplasticity;   

DOI  :  10.1016/j.msea.2015.11.095

来源: Elsevier

【 摘 要 】

The present analysis shows that the creep transition from superplastic behavior to nanocrystalline behavior can be defined by an expression, which relates the normalized grain size, d/b (b is the Burgers vector) to the normalized shear stress, tau/G (G is the shear modulus). (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free