Observation of morphology and compositional changes of magnesium alloy using liquid cell TEM

Chia-Ming Yang; Yen-Hsi Chen; Meng-Hsiu Tsai; Ben Bang-Yu Hsu; Wen-Ta Tsai; Chiu-Feng Lin; Chun-Chieh Tseng; In-Gann Chen

Journal of Materials Research and Technology (Nov 2022)

Observation of morphology and compositional changes of magnesium alloy using liquid cell TEM

Chia-Ming Yang,
Yen-Hsi Chen,
Meng-Hsiu Tsai,
Ben Bang-Yu Hsu,
Wen-Ta Tsai,
Chiu-Feng Lin,
Chun-Chieh Tseng,
In-Gann Chen

Affiliations

Chia-Ming Yang: Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan (R. O. C.); LiquidView Technology Co., Ltd., 3 F., No. 167, Sec. 1, Minsheng Rd., West Central Dist., Tainan City 700, Taiwan (R. O. C.)
Yen-Hsi Chen: Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan (R. O. C.)
Meng-Hsiu Tsai: Department of Mold and Die Engineering, National Kaohsiung University of Science and Technology, No. 415, Jiangong Rd., Sanmin Dist., Kaohsiung, 807, Taiwan (R. O. C.)
Ben Bang-Yu Hsu: Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan (R. O. C.)
Wen-Ta Tsai: Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan (R. O. C.)
Chiu-Feng Lin: Metal Industries Research & Development Centre, 1001 Kaonan Highway, Nanzi Dist., Kaohsiung 811, Taiwan (R. O. C.)
Chun-Chieh Tseng: Combination Medical Device Technology Division, Medical Devices R&D Service Department, Metal Industries Research & Development Centre, Kaohsiung 802, Taiwan (R. O. C.)
In-Gann Chen: Department of Materials Science and Engineering, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan (R. O. C.); Corresponding author.

Journal volume & issue: Vol. 21
pp. 4548 – 4557

Abstract

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Liquid cell transmission electron microscopy (LCTEM) was developed for analyzing the liquid-phase samples and shows not only the in-situ morphological images of the sample, but also the in-situ material information such as selected area diffraction (SAD) and energy-dispersive X-ray spectroscopy (EDS). The researchers analyzed the corrosion behavior of Mg–Zn–Ca alloys using both polarization and immersion tests. However, these methods only provide macro scale corrosion characteristics. In this study, the corrosion behavior of the Mg–Zn–Ca alloy powders was analyzed using LCTEM. It provided the in-situ sub-micron scale images and time-dependent composition, thereby revealing evidence of selective corrosion of the α-Mg phase as well as the IM1 phase (Ca2Mg6Zn3).

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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