| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1501535 | Scripta Materialia | 2009 | 4 Pages |
Abstract
We studied the microstructure and impact toughness of low-alloy high-carbon steel austempered at low temperature. Ultrafine carbide-free bainitic microstructure was obtained, which is composed of lath-like bainitic ferrite and retained austenite. The impact absorbed energy of austempered samples is much greater than that of the low-temperature tempered sample, while the hardness is slightly lower than the tempered sample. Crack propagation occurs via a combination of brittle quasi-cleavage fracture and ductile dimple fracture.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
T.S. Wang, J. Yang, C.J. Shang, X.Y. Li, B. Zhang, F.C. Zhang,