@article{msme2018511,
author={{Yako, Takuya and Fukui, Koichiro and Naito, Mao and Takeda, Mahoto},
title={Precipitation Behavior in an Al-Mg Alloy with High Mg Composition},
journal={Materials Science and Metallurgy Engineering},
volume={5},
number={1},
pages={1--4},
year={2018},
url={http://pubs.sciepub.com/msme/5/1/1},
issn={2373-3489},
abstract={We have investigated the precipitation phenomena which occur at high aging temperatures in an Al-Mg alloy with high Mg concentration by means of Vickers hardness (HV) testing, differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and analytical scanning transmission electron microscopy (STEM-EDX). It was found that the hardness and heat changes are closely correlated, and that the size of the exothermic heat peak depends on the quantity of ¦Â'- phase formed during isothermal aging prior to the DSC measurements. This implies that the formation of ¦Â'-phase precipitates is mainly responsible for the increase in hardness. Our TEM observations showed that ¦Â'-phase precipitates are plate-like in morphology and form on matrix {100}planes, whilst stable ¦Â-phase precipitates are granular in shape. In-situ TEM using a heating holder  revealed that ¦Â-phase precipitates grew by consumption of ¦Â'-phase platelets. Element-maps obtained by STEM-EDX indicated that the composition of ¦Â'-phase platelets was approximately Al-33at%Mg.},
doi={10.12691/msme-5-1-1}
publisher={Science and Education Publishing}
}