Surface strain evolution of ultrafine-grained aluminum alloy laminates under tension: Microscale plastic instabilities and the Portevin-Le Chatelier effect

A. Kurtovic; T. Niendorf; T. Hausöl; H. W. Höppel; M. Göken; H. J. Maier

doi:10.1016/j.scriptamat.2013.01.036

Surface strain evolution of ultrafine-grained aluminum alloy laminates under tension: Microscale plastic instabilities and the Portevin-Le Chatelier effect

A. Kurtovic
, T. Niendorf^*
, T. Hausöl
, H. W. Höppel
, M. Göken
, H. J. Maier

^*Korrespondierende*r Autor*in für diese Arbeit

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Abstract

The surface strain evolution in accumulative roll bonded aluminum alloys was studied in situ using digital image correlation. Laminated multicomponent materials, consisting of two ultrafine-grained aluminum alloys with different layer architectures (laminate and sandwich), were analyzed and compared to the pure alloys after the same number of accumulative roll bonding cycles. The results obtained show differences in the surface strain evolution of the accumulative roll bonded and differently stacked materials, which is attributed to microscale plastic instabilities.

Originalsprache	Englisch
Seiten (von - bis)	809-812
Seitenumfang	4
Fachzeitschrift	Scripta materialia
Jahrgang	68
Ausgabenummer	10
DOIs	https://doi.org/10.1016/j.scriptamat.2013.01.036
Publikationsstatus	Veröffentlicht - 9 Feb. 2013
Extern publiziert	Ja

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften
Physik der kondensierten Materie
Werkstoffmechanik
Maschinenbau
Metalle und Legierungen

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10.1016/j.scriptamat.2013.01.036

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title = "Surface strain evolution of ultrafine-grained aluminum alloy laminates under tension: Microscale plastic instabilities and the Portevin-Le Chatelier effect",

abstract = "The surface strain evolution in accumulative roll bonded aluminum alloys was studied in situ using digital image correlation. Laminated multicomponent materials, consisting of two ultrafine-grained aluminum alloys with different layer architectures (laminate and sandwich), were analyzed and compared to the pure alloys after the same number of accumulative roll bonding cycles. The results obtained show differences in the surface strain evolution of the accumulative roll bonded and differently stacked materials, which is attributed to microscale plastic instabilities.",

keywords = "Accumulative roll bonding, Digital image correlation, In situ characterization, Multicomponent material, Ultrafine-grained material",

author = "A. Kurtovic and T. Niendorf and T. Haus{\"o}l and H{\"o}ppel, \{H. W.\} and M. G{\"o}ken and Maier, \{H. J.\}",

note = "Funding information: The authors gratefully acknowledge the financial support of the German Research Council (DFG) under project GO741/19-1 and the Cluster of Excellence “Engineering of Advanced Materials” Erlangen-Nuremberg, which is funded within the framework of its “Excellence Initiative”. The authors are also very grateful to Novelis Switzerland SA for supplying the material.",

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T2 - Microscale plastic instabilities and the Portevin-Le Chatelier effect

AU - Kurtovic, A.

AU - Niendorf, T.

AU - Hausöl, T.

AU - Höppel, H. W.

AU - Göken, M.

AU - Maier, H. J.

N1 - Funding information: The authors gratefully acknowledge the financial support of the German Research Council (DFG) under project GO741/19-1 and the Cluster of Excellence “Engineering of Advanced Materials” Erlangen-Nuremberg, which is funded within the framework of its “Excellence Initiative”. The authors are also very grateful to Novelis Switzerland SA for supplying the material.

PY - 2013/2/9

Y1 - 2013/2/9

N2 - The surface strain evolution in accumulative roll bonded aluminum alloys was studied in situ using digital image correlation. Laminated multicomponent materials, consisting of two ultrafine-grained aluminum alloys with different layer architectures (laminate and sandwich), were analyzed and compared to the pure alloys after the same number of accumulative roll bonding cycles. The results obtained show differences in the surface strain evolution of the accumulative roll bonded and differently stacked materials, which is attributed to microscale plastic instabilities.

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KW - Accumulative roll bonding

KW - Digital image correlation

KW - In situ characterization

KW - Multicomponent material

KW - Ultrafine-grained material

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