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

SRK Malladi; Q Xu; MA van Huis; FD Tichelaar; KJ Batenburg; E Yucelen; B Dubiel; A Czyrska-Filemonowicz; HW Zandbergen

doi:10.1021/nl404565j

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

SRK Malladi, Q Xu, MA van Huis, FD Tichelaar, KJ Batenburg, E Yucelen, B Dubiel, A Czyrska-Filemonowicz, HW Zandbergen

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

26 Citations (Scopus)

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 degrees 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 refined 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	Undefined/Unknown
Pages (from-to)	384-389
Number of pages	6
Journal	Nano Letters: a journal dedicated to nanoscience and nanotechnology
Volume	14
Issue number	1
DOIs	https://doi.org/10.1021/nl404565j
Publication status	Published - 2014

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10.1021/nl404565j

Cite this

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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 degrees 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 refined 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.",

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

AU - Malladi, SRK

AU - Xu, Q

AU - van Huis, MA

AU - Tichelaar, FD

AU - Batenburg, KJ

AU - Yucelen, E

AU - Dubiel, B

AU - Czyrska-Filemonowicz, A

AU - Zandbergen, HW

PY - 2014

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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 degrees 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 refined 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

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JO - Nano Letters: a journal dedicated to nanoscience and nanotechnology

JF - Nano Letters: a journal dedicated to nanoscience and nanotechnology

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