Electrical current induced mechanism in microstructure and nano-indention of Al-Zn-Mg-Cu (AZMC) Al alloy thin film

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6 Citations (Scopus)

Abstract

In this study, the microstructural variation and nano-indention of Al-5.7Zn-2.4Mg-1.5Cu (AZMC) thin film was investigated using DC electrical current at a density of 1000 A/cm2. The results show that microstructural changes due to the electrical current involved both the solid solubility effect and enhanced diffusion. The electrical current drove the Al atoms and Cu atoms of the matrix from the cathode to the anode. After electrical current testing, precipitation phases (Al2Cu; CuMgAl2) had decomposed into the cathode matrix and MgZn phases had grown in the anode zones. Meanwhile, the current also caused the hardness of the thin film to decrease and affected both the texture and dynamic strain mechanism of nano-indention.

Original languageEnglish
Pages (from-to)1269-1273
Number of pages5
JournalCurrent Applied Physics
Volume11
Issue number6
DOIs
Publication statusPublished - 2011 Nov 1

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Induced currents
Anodes
Cathodes
Thin films
Atoms
microstructure
Microstructure
thin films
Solubility
Textures
Hardness
anodes
cathodes
Testing
matrices
atoms
hardness
solubility
textures
direct current

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

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title = "Electrical current induced mechanism in microstructure and nano-indention of Al-Zn-Mg-Cu (AZMC) Al alloy thin film",
abstract = "In this study, the microstructural variation and nano-indention of Al-5.7Zn-2.4Mg-1.5Cu (AZMC) thin film was investigated using DC electrical current at a density of 1000 A/cm2. The results show that microstructural changes due to the electrical current involved both the solid solubility effect and enhanced diffusion. The electrical current drove the Al atoms and Cu atoms of the matrix from the cathode to the anode. After electrical current testing, precipitation phases (Al2Cu; CuMgAl2) had decomposed into the cathode matrix and MgZn phases had grown in the anode zones. Meanwhile, the current also caused the hardness of the thin film to decrease and affected both the texture and dynamic strain mechanism of nano-indention.",
author = "Fei-Yi Hung and Jiunn-Der Liao and Truan-Sheng Lui and Chen, {Li Hui}",
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T1 - Electrical current induced mechanism in microstructure and nano-indention of Al-Zn-Mg-Cu (AZMC) Al alloy thin film

AU - Hung, Fei-Yi

AU - Liao, Jiunn-Der

AU - Lui, Truan-Sheng

AU - Chen, Li Hui

PY - 2011/11/1

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N2 - In this study, the microstructural variation and nano-indention of Al-5.7Zn-2.4Mg-1.5Cu (AZMC) thin film was investigated using DC electrical current at a density of 1000 A/cm2. The results show that microstructural changes due to the electrical current involved both the solid solubility effect and enhanced diffusion. The electrical current drove the Al atoms and Cu atoms of the matrix from the cathode to the anode. After electrical current testing, precipitation phases (Al2Cu; CuMgAl2) had decomposed into the cathode matrix and MgZn phases had grown in the anode zones. Meanwhile, the current also caused the hardness of the thin film to decrease and affected both the texture and dynamic strain mechanism of nano-indention.

AB - In this study, the microstructural variation and nano-indention of Al-5.7Zn-2.4Mg-1.5Cu (AZMC) thin film was investigated using DC electrical current at a density of 1000 A/cm2. The results show that microstructural changes due to the electrical current involved both the solid solubility effect and enhanced diffusion. The electrical current drove the Al atoms and Cu atoms of the matrix from the cathode to the anode. After electrical current testing, precipitation phases (Al2Cu; CuMgAl2) had decomposed into the cathode matrix and MgZn phases had grown in the anode zones. Meanwhile, the current also caused the hardness of the thin film to decrease and affected both the texture and dynamic strain mechanism of nano-indention.

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