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Atomic Scale Investigation on Precipitates and Defects of Mg–RE Alloys: A Review
Author(s) -
Zhu Chenyang,
Chen Bin
Publication year - 2019
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201800734
Subject(s) - materials science , atomic units , formability , alloy , metastability , metallurgy , magnesium , precipitation , characterization (materials science) , magnesium alloy , dislocation , rare earth , composite material , nanotechnology , physics , quantum mechanics , meteorology
Magnesium rare‐earth (Mg‐RE) alloys with are playing an increasingly important role in many industrial fields due to the improvement of mechanical properties and formability from RE alloying. In addition to the traditional researches on the relationship between macroscopic mechanical properties and micro‐structures, atomic scale characterization methods have been rapidly developed and widely applied to reveal the interior of these alloys. Precipitates and defects are known to be the dominant factors that influence the mechanical behaviors as well as plastic responses. Common strengthening precipitates in Mg‐RE alloys include long period stacking ordered structure (LPSO), β serial, γ serial metastable precipitates. This review mainly considers and discusses the recent development in atomic scale investigation on Mg‐RE alloy, including the common strengthening phases and interactions between defects (dislocations, twins) and existing strengthening precipitates.