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Commentary—Are There Still Places for Gallium FIB? Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Alloying and Annealing Effects on Grain Boundary Character Evolution of Al-alloy 7075 Thin Films: An ACOM-TEM Analysis

Authors : Prakash Parajuli, Rubén Mendoza-Cruz, Miguel José Yacamán, Arturo Ponce

Published in: Characterization of Minerals, Metals, and Materials 2019

Publisher: Springer International Publishing

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Abstract

Since polycrystalline materials consist of a complex network of various types of grain boundaries (GBs), a detailed study on the types of the GBs, their distribution and how they are connected is crucial to further enhance the material’s performance. Herein, the GB character distribution (types and connectivity) of as-deposited Al and Al-alloy 7075 thin films, as well as annealed Al-alloy thin films, was investigated using an advanced microscopic technique: ACOM-TEM. Annealing processes up to 12 h caused a decrease in the content ratio of random high-angle GBs (r-HAGBs) and triple junctions comprised of r-HAGBs. However, there was no significant consequence of alloying in the GB type and connectivity distribution. Furthermore, our results indicate that vacuum-deposited Al or Al-alloy thin films possess a strong <111> texture, and a characteristic GB distribution consisting of a significantly high fraction of low coincidence site lattice GBs (predominant ∑1 followed by ∑13b, ∑7, ∑21a, ∑31a and ∑19b in descending order) and a minor fraction of r-HAGBs.

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previous chapter Inter- and Transgranular Nucleation and Growth of Voids in Shock Loaded Copper Bicrystals
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Metadata
Title
Alloying and Annealing Effects on Grain Boundary Character Evolution of Al-alloy 7075 Thin Films: An ACOM-TEM Analysis
Authors
Prakash Parajuli
Rubén Mendoza-Cruz
Miguel José Yacamán
Arturo Ponce
Copyright Year
2019
Book
Characterization of Minerals, Metals, and Materials 2019

Print ISBN: 978-3-030-05748-0

Electronic ISBN: 978-3-030-05749-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-05749-7_12

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