| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-06-04 |
| タイトル |
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タイトル |
Precipitation behavior during low-temperature aging in Al–Mg–Si alloy using STEM-EDS intensity correlograms |
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言語 |
en |
| 著者 |
Saito, Genki
Sano, Yamato
Mizuno, Kazuya
Torigoe, Shoma
Takata, Ken
Okajima, Toshihiro
Muto, Shunsuke
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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権利情報 |
© 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC license ( http://creativecommons.org/licenses/bync/ 4.0/ ). |
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言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Al–Mg–Si alloys are extensively used in automotive panels because of their high formability and age-hardening capabilities during paint baking. Natural aging that occurs after the solution treatment inhibits formation of β″ precipitates during subsequent artificial aging, reducing the hardness. The precipitation behavior of Al–0.65Mg–0.81Si mass% alloy during isothermal aging at 100 °C over various durations is investigated in this study using scanning transmission electron microscopy (STEM) and STEM energy-dispersive X-ray spectroscopy (EDS). The analysis reveals the formation of Guinier–Preston (GP) zones and β″ precipitates, which influence the mechanical properties of the alloy. After 1 h of aging, no GP zones are observed; however, clusters with diameters of 1.0–1.5 nm formed, increasing and decreasing in density at 10 and 400 h, respectively. Further, β″-related structures with a Mg/Si ratio of ∼1 started forming at 10 h and grew in number by 400 h, with most particles being spherical and some elongated along the [100]Al direction. These microstructural changes correlate with yield strength variations, highlighting the role of pre-aging in promoting β″ formation during subsequent artificial aging. In addition, a novel STEM-EDS intensity correlogram method is introduced to effectively distinguish aging products from the matrix and deepen the understanding of microstructural evolution in Al–Mg–Si alloys. |
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言語 |
en |
| 出版者 |
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出版者 |
Elsevier |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.msea.2024.147686 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
09215093 |
| 書誌情報 |
en : Materials Science and Engineering: A
巻 923,
p. 147686,
発行日 2025-02
|
1-s2_0-S0921509324016174-main.pdf (7.2 MB)
