| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500142 | Scripta Materialia | 2009 | 4 Pages |
Abstract
We explore microstructural refinement through complete/partial recrystallization of prior cold-deformed ferrite during austenitizing or austempering of SAE 52100 steel to obtain ultrafine bainite and martensite. Optical and scanning/transmission electron microscopy coupled with compositional microanalysis were employed to determine the volume fraction and dimension (thickness/length) of ferritic sheaves and carbides. Characterization of mechanical properties indicates that 5–15% cold deformation significantly enhances the impact strength (∼72 J) with marginal improvement in hardness and tensile strength over that in the undeformed condition.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J. Chakraborty, D. Bhattacharjee, I. Manna,