High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet

Hong Kyu Kim; Hyung Wook Kim; Jae Hyung Cho; Jae Chul Lee

doi:10.1016/j.msea.2013.02.068

High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet

Hong Kyu Kim, Hyung Wook Kim, Jae Hyung Cho, Jae Chul Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The feasibility of producing high-strength/high-formability Al alloy sheets using a technique that combines twin-roll strip casting and asymmetric rolling is reported. An Al alloy sheet with the nominal composition of Al-1.0Si-0.6Mg (in wt%) produced in this study exhibited an excellent formability (r=1.20, and δr=0.17) and mechanical properties (σ_TS~265MPa, ε~35%), which cannot be feasibly obtained via the conventional technique based on direct-chill (DC) casting and repetitive rolling. The structural origin of the enhanced formability was explored by examining the evolution of textures associated with the strip casting and subsequent thermo-mechanical treatments and interpreted using the viscoplastic self-consistent (VPSC) model.

Original language	English
Pages (from-to)	31-36
Number of pages	6
Journal	Materials Science and Engineering A
Volume	574
DOIs	https://doi.org/10.1016/j.msea.2013.02.068
Publication status	Published - 2013 Jul 1

Keywords

Aluminum alloys
Casting
Deformation
Rolling
Texture

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2013.02.068

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title = "High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet",

abstract = "The feasibility of producing high-strength/high-formability Al alloy sheets using a technique that combines twin-roll strip casting and asymmetric rolling is reported. An Al alloy sheet with the nominal composition of Al-1.0Si-0.6Mg (in wt%) produced in this study exhibited an excellent formability (r=1.20, and δr=0.17) and mechanical properties (σTS~265MPa, ε~35%), which cannot be feasibly obtained via the conventional technique based on direct-chill (DC) casting and repetitive rolling. The structural origin of the enhanced formability was explored by examining the evolution of textures associated with the strip casting and subsequent thermo-mechanical treatments and interpreted using the viscoplastic self-consistent (VPSC) model.",

keywords = "Aluminum alloys, Casting, Deformation, Rolling, Texture",

author = "Kim, {Hong Kyu} and Kim, {Hyung Wook} and Cho, {Jae Hyung} and Lee, {Jae Chul}",

note = "Funding Information: JC and JH acknowledge the support of the Korea Institute for Advancement of Technology (KIAT) under the Grant of K00041033-17630 . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

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doi = "10.1016/j.msea.2013.02.068",

language = "English",

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AU - Kim, Hong Kyu

AU - Kim, Hyung Wook

AU - Cho, Jae Hyung

AU - Lee, Jae Chul

N1 - Funding Information: JC and JH acknowledge the support of the Korea Institute for Advancement of Technology (KIAT) under the Grant of K00041033-17630 . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/7/1

Y1 - 2013/7/1

N2 - The feasibility of producing high-strength/high-formability Al alloy sheets using a technique that combines twin-roll strip casting and asymmetric rolling is reported. An Al alloy sheet with the nominal composition of Al-1.0Si-0.6Mg (in wt%) produced in this study exhibited an excellent formability (r=1.20, and δr=0.17) and mechanical properties (σTS~265MPa, ε~35%), which cannot be feasibly obtained via the conventional technique based on direct-chill (DC) casting and repetitive rolling. The structural origin of the enhanced formability was explored by examining the evolution of textures associated with the strip casting and subsequent thermo-mechanical treatments and interpreted using the viscoplastic self-consistent (VPSC) model.

AB - The feasibility of producing high-strength/high-formability Al alloy sheets using a technique that combines twin-roll strip casting and asymmetric rolling is reported. An Al alloy sheet with the nominal composition of Al-1.0Si-0.6Mg (in wt%) produced in this study exhibited an excellent formability (r=1.20, and δr=0.17) and mechanical properties (σTS~265MPa, ε~35%), which cannot be feasibly obtained via the conventional technique based on direct-chill (DC) casting and repetitive rolling. The structural origin of the enhanced formability was explored by examining the evolution of textures associated with the strip casting and subsequent thermo-mechanical treatments and interpreted using the viscoplastic self-consistent (VPSC) model.

KW - Aluminum alloys

KW - Casting

KW - Deformation

KW - Rolling

KW - Texture

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JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

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ER -

High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet

Abstract

Keywords

ASJC Scopus subject areas

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