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Experimental Mechanics
Erschienen in: Experimental Mechanics 2/2020

19.10.2019 | Research paper

In Situ Observation of Adiabatic Shear Band Formation in Aluminum Alloys

verfasst von: Y. Nie, B. Claus, J. Gao, X. Zhai, N. Kedir, J. Chu, T. Sun, K. Fezzaa, W. W. Chen

Erschienen in: Experimental Mechanics | Ausgabe 2/2020

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Abstract

We used high-speed X-ray phase contrast imaging and infrared thermal imaging techniques to study the formation processes of adiabatic shear bands in aluminum 7075-T6 and 6061-T6 alloys. A modified compression Kolsky bar setup was used to apply the dynamic loading. A flat hat-shaped specimen design was adopted for generating the shear bands at the designated locations. Experimental results show that 7075-T6 exhibits less ductility and a narrower shear band than 6061-T6. Maximum temperatures of 720 K and 770 K were locally determined within the shear band zones for 7075-T6 and 6061-T6 respectively. This local high temperature zone and the resulting thermal instability were found to relate to the shear band formation in these aluminum alloys.
Vorheriger Artikel Determination of Crack-Tip Opening Displacement in T-Type Wedge Opening Loaded Specimen
Nächster Artikel Tracking Defects and Microstructural Heterogeneities in Meso-Scale Tensile Specimens Excised from Additively Manufactured Parts

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Metadaten
Titel
In Situ Observation of Adiabatic Shear Band Formation in Aluminum Alloys
verfasst von
Y. Nie
B. Claus
J. Gao
X. Zhai
N. Kedir
J. Chu
T. Sun
K. Fezzaa
W. W. Chen
Publikationsdatum
19.10.2019
Verlag
Springer US
Erschienen in
Experimental Mechanics / Ausgabe 2/2020
Print ISSN: 0014-4851
Elektronische ISSN: 1741-2765
DOI
https://doi.org/10.1007/s11340-019-00544-w

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On the cover of this issue: In Situ Observation of Adiabatic Shear Band Formation in Aluminum Alloys by Y. Nie, B. Claus, J. Gao, X. Zhai, N. Kedir, J. Chu, T. Sun, K. Fezzaa, and W.W. Chen

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