A5054739809- Metallic Glasses and Amorphous Alloys
- Glass properties and applications
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- Phase-change materials and chalcogenides
- High-Temperature Coating Behaviors
- Material Dynamics and Properties
- Electrostatic Discharge in Electronics
- Advancements in Semiconductor Devices and Circuit Design
- Shape Memory Alloy Transformations
- Electromagnetic wave absorption materials
- Advanced materials and composites
- Layered Double Hydroxides Synthesis and Applications
- Advanced ceramic materials synthesis
- Material Science and Thermodynamics
- Atomic and Subatomic Physics Research
- Fatigue and fracture mechanics
- Hydrogen embrittlement and corrosion behaviors in metals
- Silicon Carbide Semiconductor Technologies
- Microstructure and Mechanical Properties of Steels
- Adsorption and biosorption for pollutant removal
- Quasicrystal Structures and Properties
- Semiconductor materials and devices
- Integrated Circuits and Semiconductor Failure Analysis
- Phosphorus and nutrient management
Leibniz Institute for Solid State and Materials Research
2019-2024
Shandong University
2016-2020
Weihai Science and Technology Bureau
2017-2018
University of Science and Technology Beijing
2016
Saarland University
2007
University of Idaho
1991
In this study, 2024Al matrix composites reinforced by SiC particles (SiC-2024Al) and nanocrystalline high-entropy alloy (HEA-2024Al) fabricated powder metallurgy were systematically compared for the first time. There is a significant difference in microstructure mechanical properties as well machinability between two kinds of composites. term microstructure, when volume fraction reinforcements was 10%, both SiC-2024Al HEA-2024Al showed homogeneous particle distribution matrix. With increase...
Abstract A combination of complementary high-energy X-ray diffraction, containerless solidification during electromagnetic levitation and transmission electron microscopy is used to map in situ the phase evolution a prototype Cu-Zr-Al glass flash-annealing imposed at rate ranging from 10 2 3 K s −1 cooling liquid state. Such experimental techniques provides hitherto inaccessible insight into phase-transformation mechanism its kinetics with high temporal resolution over entire temperature...
Metallic-glass–crystal composites of Cu47.5Zr47.5Al5 and Cu10Zr7-reinforced Cu46.5Zr48Al4Nb1.5 nanocrystalline materials are obtained by flash-annealing metallic-glass ribbons. In situ high-energy X-ray diffraction reveals the deformation mechanism alloys upon tensile loading. For materials, a small remaining amount metallic glass and/or presence Cu10Zr7 phase significantly increase value yield stress while maintaining good ductility. general, exhibit reversible martensitic transformation...
Abstract Recently, CuZr-based bulk metallic glass (BMG) composites reinforced by the TRIP (transformation-induced plasticity) effect have been explored in attempt to accomplish an optimal of trade-off between strength and ductility. However, design such BMG with advanced mechanical properties still remains a big challenge for materials engineering. In this work, we proposed technique instantaneously locally arc-melting plate artificially induce precipitation B2 crystals glassy matrix then...
In recent years, CuZr-based bulk metallic glass (BMG) composites ductilized by a shape memory B2 CuZr phase have attracted great attention owing to their outstanding mechanical properties. However, the for most glass-forming compositions is only stable at very high temperatures, leading uncontrollable formation of crystals during quenching. this work, introducing Co (i.e., 4, 5, and 6 at. %) 10 % Al into alloys, relatively good ability (GFA) alloys still can be achieved. Meanwhile,...
The multiplication and interaction of self-organised shear bands often transform to a stick-slip behaviour major band along the primary plane, ultimately becomes runaway terminates plasticity bulk metallic glasses (BMGs). Here, we examined deformation behaviours nanoscale phase-separating Zr65–xCu25Al10Fex (x = 5 7.5 at.%) BMGs. formation multi-step phase separation, being mainly governed by nucleation growth, results in microstructural inhomogeneity on wide range length-scales leads...
Abstract Metallic glasses exhibit unique mechanical properties. For metallic glass composites (MGC), composed of dispersed nanocrystalline phases in an amorphous matrix, these properties can be enhanced or deteriorated depending on the volume fraction and size distribution crystalline phases. Understanding evolution during devitrification bulk upon heating is key to realizing production composites. Here, results are presented from a combination situ small‐ wide‐angle X‐ray scattering (SAXS...
Details of fast-resistive-heating setups, controlled heating ranging from ∼101 K s−1 to ∼103 s−1, study in situ phase transformations (on and on cooling) metallic glasses by high-energy synchrotron x-ray diffraction are discussed. Both setups were designed custom built at the Leibniz Institute for Solid State Materials Research Dresden (IFW Dresden) have been implemented P02.1 Powder Diffraction Total Scattering Beamline P21.1 Swedish Science PETRA III storage ring, DESY, Hamburg. The...
The mineralogical structure of dephosphorisation slag at the first deslagging was studied by SEM–EDS, XRD and FactSage 7.0. results show that which is favourable for enrichment Si, Ca P has good ability. While Fe O poor main in liquid phase 2CaO·SiO2 2CaO·SiO2–3CaO·P2O5, dephosphorisation. values increase with increasing mole fraction P2O5 solid solution phase, temperature deslagging. value increases FeO content basicity, but decreases basicity phase.
In this study, the microstructural evolution and mechanical properties of TiCuNiZr-based bulk metallic glass (BMGs) composites were systematically investigated in order to optimize both strength ductility BMGs. By tailoring glass-forming compositions, BMG with different volume fractions B2 (Ti,Zr)(Cu,Ni) crystals precipitating glassy matrix exhibit not only macroscopic but also high as well work-hardening, which is due formation multiple shear bands martensitic transformation during...