Synthesizing (ZrAl3 + AlN)/Mg–Al composites by a ‘matrix exchange’ method

Synthesizing (ZrAl3 + AlN)/Mg–Al composites by a ‘matrix exchange’ method

A method named ‘matrix exchange’ to synthesize ZrAl3 and AlN reinforced Mg–Al composite was developed in this paper. By inserting Al–10ZrN master alloy into Mg matrix and reheating the cooled ingot to 550 °C, Al and Mg atoms diffuse to the opposite side. As a result, liquid melt occurs once the inte...

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Bibliographic Details
Main Authors: Tong Gao, Zengqiang Li, Kaiqi Hu, Mengxia Han, Xiangfa Liu
Format: Article
Language:English
Published: Elsevier 2018-06-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379718301980
Description
Summary:A method named ‘matrix exchange’ to synthesize ZrAl3 and AlN reinforced Mg–Al composite was developed in this paper. By inserting Al–10ZrN master alloy into Mg matrix and reheating the cooled ingot to 550 °C, Al and Mg atoms diffuse to the opposite side. As a result, liquid melt occurs once the interface areas reach to proper compositions. Then dissolved Al atoms react with ZrN, leading to the in-situ formation of ZrAl3 and AlN particles, while the Al matrix is finally replaced by Mg. This study provides a new insight for preparing Mg composites. Keywords: Mg–Al composites, Diffusion, Microstructure, Phase transformation
ISSN:2211-3797

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