Results 61 to 70 of about 4,280 (181)

Effect of annealing temperature and time on recrystallization behavior of Mg-Gd-Y-Zn-Zr alloy

open access: yesMaterials Research Express, 2021
In this paper, the effect of annealing treatment on the microstructure and hardness of extruded Mg-9Gd-4Y-2Zn-0.5Zr alloy (wt. %) was discussed. The microstructure evolution of the alloy under different annealing conditions was studied by optical ...
Rui Han   +6 more
doaj   +1 more source

Grain refinement of magnesium alloys: a review of recent research, theoretical developments and their application [PDF]

open access: yes, 2013
This paper builds on the ‘‘Grain Refinement of Mg Alloys’’ published in 2005 and reviews the grain refinement research onMg alloys that has been undertaken since then with an emphasis on the theoretical and analytical methods that have been developed ...
A. Becerra   +143 more
core   +1 more source

A Comprehensive Review of Adsorbents for Rare Earth Separation: Design, Synthesis, Adsorption Performance, and Mechanisms

open access: yesRare Metals, EarlyView.
ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang   +6 more
wiley   +1 more source

Wire-arc additive manufacturing of Mg-Gd-Y-Zn-Zr alloy fabricated by cold metal transfer heat source: Processing, microstructure, and mechanical properties

open access: yesJournal of Materials Research and Technology
With the development of aerospace, Mg-Gd-Y-Zn-Zr alloy as a high-performance light alloy has attracted much attention. In this paper, the Mg-8.8Gd-3.9Y-0.85Zn-0.45Zr (wt%, GWZ941) alloy single-pass multilayer components fabricated by cold metal transfer ...
Wenzhe Yang   +6 more
doaj   +1 more source

Protection against corrosion of magnesium alloys with both conversion layer and sol–gel coating [PDF]

open access: yes, 2013
The anticorrosion performances of a system consisting of a phosphate based conversion layer and a hybrid sol–gel coating have been evaluated for the magnesium alloy Elektron21.
Ansart, Florence   +4 more
core   +4 more sources

New Advances of Degradable Magnesium‐Based Metal Biomaterials in the Field of Orthopedics

open access: yesRare Metals, EarlyView.
ABSTRACT Based on their outstanding biomechanical properties and superior osteogenic activity, magnesium (Mg) and its alloys have been extensively investigated for their biocompatibility and therapeutic efficacy in treating fractures and bone defects.
Jia‐Nan Yu   +8 more
wiley   +1 more source

Architectural optimization of an epoxy-based hybrid sol–gel coating for the corrosion protection of a cast Elektron21 magnesium alloy [PDF]

open access: yes, 2014
An epoxy-based hybrid sol–gel coating was prepared in various architectural configurations has beenstudied for the corrosion protection of a cast Elektron21 magnesium alloy.
Ansart, Florence   +4 more
core   +3 more sources

Engineering Metastability in Atomic Layer Deposition: Polymorph and Valence Control

open access: yesSmall, EarlyView.
This work presents strategies for stabilizing two types of metastable phases: structural polymorphs and multivalence states via ALD. These approaches focus on lowering the energy barriers required for metastable phase formation, enabling access to metastable states beyond the thermodynamic limits imposed by the low‐temperature conditions of ALD.
Jihoon Jeon   +4 more
wiley   +1 more source

Effect of pre-precipitated micro-sized β-Mg5RE on dynamic recrystallization of hot-compressed Mg-Gd-Y-Zn-Zr alloy

open access: yesResults in Engineering
Micro-sized β-Mg5RE was precipitated by pre-aging treatment at 300 °C for 52 h. To study the effect of β-Mg5RE on the dynamic recrystallization (DRX) of Mg-Gd-Y-Zn-Zr alloy, the aged alloy with pre-precipitates and the solution-treated alloy without pre ...
Yunong Deng   +7 more
doaj   +1 more source

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff   +18 more
wiley   +1 more source

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