Al-10%Mg合金の室温時効過程

里 達雄; 高橋 恒夫; 飯泉 仁; 土井 健治

doi:10.2464/jilm.34.110

Aging phenomena in Al-10%Mg alloy at room temperature

Tatsuo SATO, Tsuneo TAKAHASHI, Masashi IIZUMI, Kenji DOI

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1984 Volume 34 Issue 2 Pages 110-114

DOI https://doi.org/10.2464/jilm.34.110

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Published: February 28, 1984 Received: June 21, 1983 Available on J-STAGE: July 23, 2008 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 23, 2008 Reason for correction: - Correction: ABSTRACT Details: Wrong : The aging phenomena in an Al-10%Mg alloy at room temperature has been investigated using mechanical properties, electrical resistivity measurement, neutron diffraction and high resolution electron microscope. The mechanical properties as the proof stress and elongation change gradually over a period of several years at room temperature. The electrical resistivity increases at the beginning to show resistivity maximum, subsequently decreases gradually with aging time. It was shown in TEM investigations that modulated structures were formed along the <100> direction in the early stage of aging, which later developed continuously into spherical G. P. zones having Ll2 ordered structure. The ordered G. P. zones, even if formed in the long-term aging, dissolve immediately by heating at 150°C.
Right : The aging phenomena in an Al-10%Mg alloy at room temperature has been investigated using mechanical properties, electrical resistivity measurement, neutron diffraction and high resolution electron microscope. The mechanical properties as the proof stress and elongation change gradually over a period of several years at room temperature. The electrical resistivity increases at the beginning to show resistivity maximum, subsequently decreases gradually with aging time. It was shown in TEM investigations that modulated structures were formed along the <100> direction in the early stage of aging, which later developed continuously into spherical G. P. zones having Ll₂ ordered structure. The ordered G. P. zones, even if formed in the long-term aging, dissolve immediately by heating at 150°C.

Date of correction: July 23, 2008 Reason for correction: - Correction: AFFILIATION Details: Wrong :
1) Faculty of Engineering, Tokyo Institute of Technology
2) Research Establishment, JaPan Atomic Energy Rcsearch Institute

Right :
1) Faculty of Engineering, Tokyo Institute of Technology
2) Research Establishment, JaPan Atomic Energy Research Institute

Date of correction: July 23, 2008 Reason for correction: - Correction: PDF FILE Details: -

Abstract

The aging phenomena in an Al-10%Mg alloy at room temperature has been investigated using mechanical properties, electrical resistivity measurement, neutron diffraction and high resolution electron microscope. The mechanical properties as the proof stress and elongation change gradually over a period of several years at room temperature. The electrical resistivity increases at the beginning to show resistivity maximum, subsequently decreases gradually with aging time. It was shown in TEM investigations that modulated structures were formed along the <100> direction in the early stage of aging, which later developed continuously into spherical G. P. zones having Ll₂ ordered structure. The ordered G. P. zones, even if formed in the long-term aging, dissolve immediately by heating at 150°C.

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