Journal ArticleDOI
Enhanced age hardening response and creep resistance of Mg-Gd alloys containing Zn
TLDR
In this paper, the authors showed that adding 1.2 × 2 Zn to this alloy significantly enhanced the age hardening response and the creep strength and the remarkable improvement in strength and creep resistance is associated with a uniform and dense distribution of basal precipitate plates that are not observed in the Zn-free alloy.About:
This article is published in Scripta Materialia.The article was published on 2005-11-01. It has received 412 citations till now. The article focuses on the topics: Creep & Precipitation hardening.read more
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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.
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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.
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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.
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Formation of 14H long period stacking ordered structure and profuse stacking faults in Mg–Zn–Gd alloys during isothermal aging at high temperature
TL;DR: In this article, a time-temperature-transformation diagram of an Mg-Zn-Gd alloy is proposed, which shows different precipitation sequences at low, medium and high temperatures.
References
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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.
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Long period stacking structures observed in Mg97Zn1Y2 alloy
TL;DR: In this article, a long period stacking (LPS) structure with 18R-type was observed in Mg97Zn1Y2 (at%) alloy prepared by Cu-mold casting and induction melting methods.
Journal ArticleDOI
Creep-resistant magnesium alloys
TL;DR: The development of creep resistant alloys over the past 20 years is discussed, ranging from the WE series developed early in the 1980s and which represents the present state of the art to MgSc and MgGd ternary alloys that show an improvement in creep resistance of two orders of magnitude.
Journal ArticleDOI
Variation of long-period stacking order structures in rapidly solidified Mg97Zn1Y2 alloy
TL;DR: In this article, the lattice constants of 18R( 1 1 ¯ 1 1 )3, 14H( 2 ¯ 1 2¯ 1 1¯ 2 1 ¯ 2 ), 10H( 1 3 ¯ 11 ¯ 3 1 ¯ ) and 24R(1 1 ¯1 1 ) 3 )3 structures are estimated to be a.
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