| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500528 | Scripta Materialia | 2010 | 4 Pages |
Abstract
The deformation behavior of a nanograined/ultrafine-grained (NG/UFG) austenitic stainless steel characterized by high strength–high ductility combination is investigated via nanoindentation and electron microscopy, and the behavior compared with its coarse-grained (CG) counterpart. In NG/UFG steel, mechanical twinning was an active deformation mechanism, while in CG steel, nucleation of strain-induced martensite at the shear bands occurred. The differences in deformation mechanisms of NG/UFG and CG steels are reflected in the discrete burst in the force–displacement plots and attributed to austenite stability.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R.D.K. Misra, Z. Zhang, Z. Jia, M.C. Somani, L.P. Karjalainen,