| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1556419 | Journal of Materials Science & Technology | 2015 | 6 Pages |
Abstract
The grain boundary design was used to introduce boride Ti2B and TiB2 nanoparticles of 5Â nm in size into grain boundaries of nanocrystalline Ti50Ni25Cu25 alloy. As a result, the maximum normalized microhardness was increased by 20% and the theoretical limit of hardness is substantially approached. It is proposed that boride nanoparticles suppressed low-temperature grain-boundary sliding and, therefore, shifted the range of the anomalous behavior of Hall-Petch relation toward smaller sizes of the Ti-Ni-Cu nanocrystals.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Alexandr M. Glezer, Nadezhda A. Shurygina, Elena N. Blinova, Inga E. Permyakova, Sergey A. Firstov,