Journal ArticleDOI
Effect of Zn additions on the age-hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys
TLDR
In this paper, the microstructures of age hardened Mg-2.0Gd-1.2Y-xZn-0.2Zr (x = 0, 0.3, and 1.0) (at.%) alloys were investigated to understand the remarkable age-hardening and unusual plastic elongation behavior.About:
This article is published in Acta Materialia.The article was published on 2007-07-01. It has received 427 citations till now. The article focuses on the topics: Precipitation hardening & Phase (matter).read more
Citations
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Precipitation and Hardening in Magnesium Alloys
TL;DR: In this paper, a review of precipitation in most precipitation-hardenable magnesium alloys is reviewed, and its relationship with strengthening is examined, and it is demonstrated that the precipitation phenomena in these alloys, especially in the very early stage of the precipitation process, are still far from being well understood, and many fundamental issues remain unsolved even after some extensive and concerted efforts made in the past 12 years.
Journal ArticleDOI
The 18R and 14H long-period stacking ordered structures in Mg–Y–Zn alloys
TL;DR: In this paper, the 18R and 14H long-period stacking ordered structures formed in Mg-Y-Zn alloys were examined systematically using electron diffraction and high-angle annular dark-field scanning transmission electron microscopy.
Journal ArticleDOI
Recent developments in high-strength Mg-RE-based alloys: Focusing on Mg-Gd and Mg-Y systems
TL;DR: A review of recent research and developments in high-strength Mg-RE alloys is beneficial for the further design of Mg alloys with higher strength as well as excellent comprehensive performance as discussed by the authors.
Journal ArticleDOI
Fabrication of extraordinary high-strength magnesium alloy by hot extrusion
TL;DR: In this article, an ingot metallurgy process with hot extrusion followed by aging has been used to produce an extraordinary high-strength Mg-1.8Gd−1.7Zn−0.2Zr alloy with ultimate tensile strength of 542 MPa, proof stress of 473 MPa and elongation to failure of 8.0%.
Journal ArticleDOI
Effects of rare-earth elements Gd and Y on the solid solution strengthening of Mg alloys
Lei Gao,Rongshi Chen,En-Hou Han +2 more
TL;DR: In this article, a number of Mg−Gd, Mg-Y binary and mg-Gd-Y ternary alloys are investigated in terms of solid solution strengthening efficiency.
References
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Book
Phase transformations in metals and alloys
TL;DR: In this article, the authors discuss the properties of phase diagrams for single-component systems, including the influence of interfaces on the equilibrium of binary solutions in Heterogeneous Systems (Heterogeneous Binary Phase Diagrams).
Book
Theory of structural transformations in solids
TL;DR: Theory of structural transformations in solids as mentioned in this paper, Theory of structural transformation of solids, and structural transformation in the solids. But, the structural transformations are not necessarily symmetric.
Journal ArticleDOI
Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys
TL;DR: In this article, the Orowan equation for magnesium alloys strengthened by rationally-oriented, shear-resistant precipitate plates/rods was developed and compared with identical volume fractions and number densities of precipitates per unit volume.
Journal ArticleDOI
Characterisation of strengthening precipitate phases in a Mg–Y–Nd alloy
Jian Feng Nie,Barry C Muddle +1 more
TL;DR: In this paper, a Mg-Y-Nd-based alloy (WE54) was characterised using transmission electron microscopy and the formation of three separate metastable phases, α platelets of an as yet unidentified phase, and the phases designated β′ and β1, preceding formation of the equilibrium phase β.
Journal ArticleDOI
Long-period ordered structure in a high-strength nanocrystalline Mg-1 at% Zn-2 at% Y alloy studied by atomic-resolution Z-contrast STEM
TL;DR: In this article, the microstructure of a nanocrystalline Mg97Zn1Y2 bulk alloy prepared by warm extrusion of rapidly solidified powders has been investigated by a combination of techniques, such as conventional high-resolution transmission electron microscopy (HRTEM), atomic-resolution high-angle annular dark field scanning-TEM (HAADF-STEM) with Z-contrast and energy-dispersive X-ray spectroscopy (EDS) with a sub-nanometer electron probe.
Related Papers (5)
Characterisation of strengthening precipitate phases in a Mg–Y–Nd alloy
Jian Feng Nie,Barry C Muddle +1 more