6xxx Series Al Alloy Sheets with High Formability Produced by Twin-roll Strip Casting and Asymmetric Rolling
- Authors
- Kim, Hong-Kyu; Cho, Jae-Hyung; Kim, Hyoung-Wook; Lee, Jae-Chul
- Issue Date
- Jul-2012
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- Al alloy; asymmetric rolling; strip casting; mechanical properties; textures; Al-Mg-Si
- Citation
- KOREAN JOURNAL OF METALS AND MATERIALS, v.50, no.7, pp 503 - 509
- Pages
- 7
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF METALS AND MATERIALS
- Volume
- 50
- Number
- 7
- Start Page
- 503
- End Page
- 509
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/108011
- DOI
- 10.3365/KJMM.2012.50.7.503
- ISSN
- 1738-8228
2288-8241
- Abstract
- We report on the feasibility of producing 6xxx series Al alloy sheets using a combination of twin-roll strip casting and asymmetric rolling. The Al alloy sheets produced in this study exhibited an excellent formability ((r) over bar = 1.2, Delta r = 0.17) and mechanical properties (sigma(TS) similar to 260 MPa, epsilon > 30%), which cannot be feasibly obtained via the conventional technique based on ingot casting and conventional rolling. The enhanced formability as evaluated in terms of (r) over bar and Delta r was clarified by examining the evolution of textures associated with strip casting and subsequent thermo-mechanical treatments. The evaluation of the formability leads us to conclude that the combined technique based on strip casting and asymmetric rolling is a feasible process for enhancing the formability of Al alloy sheets to a level beyond which the conventional technique can reach.
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