Mechanisms of tensile improvement in caliber-rolled high-carbon steel
SCIE
SCOPUS
KCI
- Title
- Mechanisms of tensile improvement in caliber-rolled high-carbon steel
- Authors
- Lee, T; Park, CH; Lee, SY; Son, IH; Lee, DL; Lee, CS
- Date Issued
- 2012-06
- Publisher
- KOREAN INST METALS MATERIALS
- Abstract
- The microstructural evolution and tensile characteristics of caliber-rolled plain carbon steels were quantitatively investigated and compared with those of the as-received plain carbon steels. The caliber-rolled steels exhibited a similar microstructure consisting of an ultrafine-grained ferritic matrix and dispersed fine cementite particles. In contrast to the general trend of caliber-rolling processes showing significant reductions in elongation while retaining a high strength, the present caliber-rolled high-carbon steel exhibited simultaneously improved strength and elongation. This distinctive tensile enhancement of the caliber-rolled high-carbon steel was attributed to the increased strain hardening rate caused by the high fraction of submicron cementite particles and to the transition of the fracture mode from a brittle state to a ductile state.
- Keywords
- metals; severe plastic deformation; grain refinement; mechanical properties; fracture; ULTRAFINE-GRAINED ALUMINUM; MANGANESE AUSTENITIC STEEL; DEFORMATION-BEHAVIOR; ALLOY; MICROSTRUCTURE; STRAIN; SIZE; SUPERPLASTICITY; DEPENDENCE; TI-6AL-4V
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/14679
- DOI
- 10.1007/S12540-012-3002-6
- ISSN
- 1598-9623
- Article Type
- Article
- Citation
- METALS AND MATERIALS INTERNATIONAL, vol. 18, no. 3, page. 391 - 396, 2012-06
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.