Deformation mechanisms at Different grain sizes in a cryogenically ball-milled Al-Mg alloy.

Conference · Mon Jan 01 00:00:00 EST 2001

DOI:https://doi.org/10.1002/9781118804537.ch38· OSTI ID:975747

Liao, Xiaozhou; Huang, J ^[1]; Zhu, Y T ^[2]; Zhou, F ^[3]; Lavernia, Enrique J

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1. Jianyu
2. Yuntian Theodore
3. Fei

An Al-7.5 wt. % Mg alloy was ball-milled in liquid N2 for eight hours and its microstructures were investigated using transmission electron microscopy. Electron diffraction confirmed that the resulting powder is a supersaturated Al-Mg solid solution with a face-centered cubic structure. Three nanostructures with different grain size ranges and shapes were observed and the deformation mechanisms in these structures were found to be different. The reasons for the different deformation mechanisms were discussed. Keywords: Aluminum alloy; Cryogenic ball milling; Transmission electron microscopy; Microstructure.

• Research Organization: Los Alamos National Laboratory.
• Sponsoring Organization: USDOE
• OSTI ID: 975747
• Report Number(s): LA-UR-01-5210; TRN: US201018%%834
• Resource Relation: Conference: Submitted to: Ultrafine Grained Materials II, Proceedings for Second International Symposium on Ultrafine Grained Materials, The 2002 TMS Annual Meeting, February 17-21, 2002, Seattle, WA, US.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
ALUMINIUM
CRYOGENICS
DEFORMATION
ELECTRON DIFFRACTION
GRAIN SIZE
MICROSTRUCTURE
MILLING
NANOSTRUCTURES
SOLID SOLUTIONS
TRANSMISSION ELECTRON MICROSCOPY