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HRTEM Study of Precipitates in Mg‐Zn‐Y Alloys as Cast and after Extrusion
Author(s) -
Rao J.,
Zhou Y.,
Yoshimoto S.,
Yamasaki M.,
Kawamura Y.
Publication year - 2005
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.200500002
Subject(s) - materials science , extrusion , precipitation , substrate (aquarium) , metallurgy , high resolution transmission electron microscopy , nanometre , chemical engineering , transmission electron microscopy , composite material , nanotechnology , oceanography , physics , meteorology , engineering , geology
Three kinds of precipitates were newly found, which are Mg 3 Zn 3 Y 2 , MgZn and MgZn 2 , in Mg‐Zn‐Y alloys both as‐cast and after extrusion due to the composition concentration of Zn and Y on nanometer scale. This figure shows the high‐resolution TEM image of MgZn precipitate in Mg substrate with the crystallographic parameters labeled in details. The boundary between MgZn precipitate and Mg substrate is very clear, no second phases were observed.