| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5464247 | Materials Letters | 2017 | 4 Pages |
Abstract
The structural evolution of nano Cu-precipitates was studied with high-resolution transmission electron microscopy. 9R Cu precipitates were mainly multiple-twinned. However, the unusual 9R Cu precipitates with no twins were also observed. The 9Râface-centered tetragonal (fct) transition can occur without complete detwinning with 9R Cu structure, which has been confirmed by fast Fourier transform pattern and calculation of Moire' fringes. Instead of commonly-accepted evolution process of body-centered cubic (bcc)âtwinned 9Râ3Râface-centered cubic (fcc), a new transformation mechanism of bccâ9Râtwinned fcc or fctâfcc has been proposed. Finally, a crystallographic model was established to explain the bccâ9Râfcc transformation processes.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Mingxue Sun, Weina Zhang, Zhenyu Liu, Guodong Wang,