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The Influence of Individual Rare Earth Elements (La, Ce, or Nd) on Creep Resistance of Die‐Cast Magnesium Alloy AE44
Author(s) -
Zhu Suming,
Easton Mark A.,
Abbott Trevor B.,
Gibson Mark A.,
Nie JianFeng
Publication year - 2016
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.201500545
Subject(s) - creep , materials science , intermetallic , metallurgy , alloy , volume fraction , die (integrated circuit) , rare earth , die casting , casting , magnesium alloy , magnesium , manganese , composite material , nanotechnology
Three AE44 (Mg–4Al–4RE, wt%) alloys are prepared from individual RE elements, i.e., La, Ce, or Nd, by high‐pressure die casting and the creep resistance of these alloys is evaluated. It is shown that the choice of RE elements has a significant influence on the creep resistance of AE44, with the La‐containing alloy being the most creep‐resistant while the Nd‐containing alloy the least creep‐resistant. Microstructural examinations suggest that the observed difference in creep resistance cannot be accounted for by the thermal stability of the Al 11 RE 3 phase, as reported previously, but can be related to the volume fraction of intermetallic phases and the content of manganese.