A5067963213- Magnesium Alloys: Properties and Applications
- Hydrogen Storage and Materials
- Aluminum Alloys Composites Properties
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- Corrosion Behavior and Inhibition
- Solidification and crystal growth phenomena
- Plant and fungal interactions
- Advanced Welding Techniques Analysis
- Fungal Biology and Applications
- Metallic Glasses and Amorphous Alloys
- Semiconductor materials and devices
- Powder Metallurgy Techniques and Materials
- Mycorrhizal Fungi and Plant Interactions
- Electronic and Structural Properties of Oxides
- Intermetallics and Advanced Alloy Properties
- Ferroelectric and Negative Capacitance Devices
- Phytochemicals and Antioxidant Activities
North University of China
2017-2023
Taiwan Semiconductor Manufacturing Company (Taiwan)
2021
Chongqing University
2012-2015
Different solution treatments were carried out on the semi-continuously cast Mg-9.55Gd-2.27Y-1.28Zn-0.55Zr-0.11Nd (wt.%) alloy at temperatures of 480 °C, 500 and 520 °C. It was found that different treatment led to phase constitutions alloy. The Mg3RE-type eutectic phases transform into long period stacking order (LPSO) with various morphologies after treatment. Increasing temperature resulted in larger grain size, greater number lamellar LPSO phases, segregation Zr element. Block also...
In this study, the optimization of mechanical and damping capacities Mg-0.6 wt.% Zr alloys by controlling recrystallized (DRXed) grain size under varying extrusion processing parameters including temperature T strain rate ε˙ was investigated. The relationship between DRXed properties studied alloy also discussed. as-extruded Mg–Zr decreased as increased. As decreased, strength elongation exhibited improved performance through refinement mechanism, while deteriorated. had relatively greater...
The effect of the lamellar long period stacking order (LPSO) phase on both mechanical properties and damping capacity magnesium alloys is still vague. After heat treatment at 540 °C for 4 h 450 10 h, Mg-10Gd-2Y–1Zn-0.5Zr-0.2Nd (wt%) alloy with LPSO prepared to study influence properties. Combined transmission electron microscopy (TEM) scanning (SEM) equipped back-scattering patterns (EBSD) system, it surprisingly found that growth direction basal plane nearly parallel slip dislocations,...
The microstructure, mechanical properties and fracture behavior of as-cast Mg-10Gd-3Y-xZn-0.6Zr (x = 0, 0.5, 1 2 wt%) alloys have been investigated by X-ray diffraction (XRD), optical microscopy (OM), scanning electron (SEM) tensile tests. experimental results reveal that the microstructure alloy without Zn contains α-Mg Mg24(Gd,Y)5 phase, with 0.5% contained α-Mg, (Mg,Zn)3(Gd,Y) Mg24(Gd,Y,Zn)5 whereas when content was 1% 2%, Mg12(Gd,Y)Zn phase some needle-shaped stacking faults notably...
This work studied the microstructure, mechanical properties and damping of Mg95.34Ni2Y2.66 Mg95.34Zn1Ni1Y2.66 alloys systematically. The difference in evolution long-period stacked ordered (LPSO) phase two during heat treatment was focus. morphology as-cast presented a disordered network. After at 773 K for 2 hours, eutectic integrated into matrix, LPSO maintained 18R structure. As Zn partially replaced Ni, crystal grains became rounded cast alloy, lamellar phases more solid solution atoms...
Abstract The effects of different heat treatment processes on the morphology and damping properties long-period stacking order (LPSO) phase in Mg-4.9Zn-8.9Y-xMn alloys were studied. microstructure analysis shows that as-cast second presents a vein-shaped distribution at grain boundary, temperature has significant effect phase. After 540 °C, LPSO boundary changes into rod-like; When is 550 bulk or flocculent, part melts matrix.In this process, addition Mn also an important influence...
Magnesium alloys are concerned for its mechanical properties and high damping performance. The influence of Mn toward the internal organization morphology long-period stacking ordered (LPSO) second phase consistent performance in Mg-4.9Zn-8.9Y-xMn have been studies this work. It has shown that addition tends to diffuse LPSO interface causes expand arc direction. circular structure can optimize property alloy better than with strong orientation, especially at strain 10−3 250 °C. With more...
Abstract The damping and mechanical properties of extruded Mg-Zn X -Y 1.33X (X = 1, 2, 3 at%) alloys were investigated in this experiment. results shown that the alloy was mainly composed by long-period stacking ordered (LPSO) phase magnesium(Mg) matrix. With increase Zinc(Zn) Yttrium(Y) content, grains had a certain refinement, LPSO content significantly increased, accompanied small amount rare Y-enriched particles. After extrusion, second broken into pieces. tensile strength(UTS) yield...
Mg alloys with fine mechanical properties and high damping capacities are essential in engineering applications. In this work, Mg–Zn–Y based lamellar long period stacking ordered (LPSO) phases were obtained by different processes. The results show that a more second phase can be the samples solid solution atoms. density of LPSO has an obvious effect on magnesium alloy. compact is not conducive to dislocation damping, but sparse improve capacity without significantly reducing properties....
In this work, the relationship between critical undercooling ΔT∗ and nonequilibrium solidification velocity of single-phase alloys as well refined structure transformation mechanism have been fully investigated. The results show that greater alloy, more solid phase can be produced at recalescence, thus stress accumulated in structure, which makes grain refinement likely to happen smaller. There are higher misorientation, high-proportion ∑3 twin boundaries high-angle GBs structures high...