Real-Time Atomic Scale Imaging of Nanostructural Evolution in Aluminum Alloys

S.K. Malladi; X. Xu; M.A. van Huis; F.D. Tichelaar; K.J. Batenburg; E. Yücelen; B. Dubiel; A. Czyrska-Filemonowicz; H.W. Zandbergen

doi:10.1021/nl404565j

Real-Time Atomic Scale Imaging of Nanostructural Evolution in Aluminum Alloys

S.K. Malladi, X. Xu, M.A. van Huis, F.D. Tichelaar, K.J. Batenburg, E. Yücelen, B. Dubiel, A. Czyrska-Filemonowicz, H.W. Zandbergen

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Abstract

We present a new approach to study the three- dimensional compositional and structural evolution of metal alloys during heat treatments such as commonly used for improving overall material properties. It relies on in situ heating in a high-resolution scanning transmission electron microscope (STEM). The approach is demonstrated using a commercial Al alloy AA2024 at 100 − 240 ° C, showing in unparalleled detail where and how precipitates nucleate, grow, or dissolve. The observed size evolution of individual precipitates enables a separation between nucleation and growth phenomena, necessary for the development of re fi ned growth models. We conclude that the in situ heating STEM approach opens a route to a much faster determination of the interplay between local compositions, heat treatments, microstructure, and mechanical properties of new alloys

Original language	English
Pages (from-to)	384-389
Number of pages	6
Journal	Nano Letters
Volume	14
DOIs	https://doi.org/10.1021/nl404565j
Publication status	Published - 2014

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@article{a265b100729545fd9c64aff8b0925e15,

title = "Real-Time Atomic Scale Imaging of Nanostructural Evolution in Aluminum Alloys",

abstract = "We present a new approach to study the three- dimensional compositional and structural evolution of metal alloys during heat treatments such as commonly used for improving overall material properties. It relies on in situ heating in a high-resolution scanning transmission electron microscope (STEM). The approach is demonstrated using a commercial Al alloy AA2024 at 100 − 240 ° C, showing in unparalleled detail where and how precipitates nucleate, grow, or dissolve. The observed size evolution of individual precipitates enables a separation between nucleation and growth phenomena, necessary for the development of re fi ned growth models. We conclude that the in situ heating STEM approach opens a route to a much faster determination of the interplay between local compositions, heat treatments, microstructure, and mechanical properties of new alloys",

author = "S.K. Malladi and X. Xu and {van Huis}, M.A. and F.D. Tichelaar and K.J. Batenburg and E. Y{\"u}celen and B. Dubiel and A. Czyrska-Filemonowicz and H.W. Zandbergen",

year = "2014",

doi = "10.1021/nl404565j",

language = "English",

volume = "14",

pages = "384--389",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

}

TY - JOUR

T1 - Real-Time Atomic Scale Imaging of Nanostructural Evolution in Aluminum Alloys

AU - Malladi, S.K.

AU - Xu, X.

AU - van Huis, M.A.

AU - Tichelaar, F.D.

AU - Batenburg, K.J.

AU - Yücelen, E.

AU - Dubiel, B.

AU - Czyrska-Filemonowicz, A.

AU - Zandbergen, H.W.

PY - 2014

Y1 - 2014

N2 - We present a new approach to study the three- dimensional compositional and structural evolution of metal alloys during heat treatments such as commonly used for improving overall material properties. It relies on in situ heating in a high-resolution scanning transmission electron microscope (STEM). The approach is demonstrated using a commercial Al alloy AA2024 at 100 − 240 ° C, showing in unparalleled detail where and how precipitates nucleate, grow, or dissolve. The observed size evolution of individual precipitates enables a separation between nucleation and growth phenomena, necessary for the development of re fi ned growth models. We conclude that the in situ heating STEM approach opens a route to a much faster determination of the interplay between local compositions, heat treatments, microstructure, and mechanical properties of new alloys

AB - We present a new approach to study the three- dimensional compositional and structural evolution of metal alloys during heat treatments such as commonly used for improving overall material properties. It relies on in situ heating in a high-resolution scanning transmission electron microscope (STEM). The approach is demonstrated using a commercial Al alloy AA2024 at 100 − 240 ° C, showing in unparalleled detail where and how precipitates nucleate, grow, or dissolve. The observed size evolution of individual precipitates enables a separation between nucleation and growth phenomena, necessary for the development of re fi ned growth models. We conclude that the in situ heating STEM approach opens a route to a much faster determination of the interplay between local compositions, heat treatments, microstructure, and mechanical properties of new alloys

U2 - 10.1021/nl404565j

DO - 10.1021/nl404565j

M3 - Article

SN - 1530-6984

VL - 14

SP - 384

EP - 389

JO - Nano Letters

JF - Nano Letters

ER -

Real-Time Atomic Scale Imaging of Nanostructural Evolution in Aluminum Alloys

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