A5022500382- Cellular and Composite Structures
- Microstructure and Mechanical Properties of Steels
- Additive Manufacturing Materials and Processes
- Metallurgy and Material Forming
- Metallic Glasses and Amorphous Alloys
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloys Composites Properties
- Magnesium Alloys: Properties and Applications
- High Temperature Alloys and Creep
- Structural Response to Dynamic Loads
- Metal Alloys Wear and Properties
- High Entropy Alloys Studies
- Calcium Carbonate Crystallization and Inhibition
- Mechanical Behavior of Composites
- Structural Analysis and Optimization
- Titanium Alloys Microstructure and Properties
- Aluminum Alloy Microstructure Properties
- Advanced Welding Techniques Analysis
- Gene Regulatory Network Analysis
- Microstructure and mechanical properties
- Electrodeposition and Electroless Coatings
- Advanced Materials and Mechanics
- Bone Tissue Engineering Materials
- Advanced Measurement and Metrology Techniques
- Molecular Communication and Nanonetworks
Imperial College London
2014-2025
Wuhan University of Science and Technology
2024
China North Industries Group Corporation (China)
2024
The CoCrFeMnNi high-entropy alloy is a promising candidate for metal additive manufacturing. In this study, single-layer and multi-layer builds were produced by laser powder bed fusion to study microstructure formation in rapid cooling its evolution during repeated deposition. showed good printability with high consolidation uniform hardness. It shown that the printed governed epitaxial growth competitive grain growth. As consequence, bi-directional scanning pattern without rotation...
Abstract Crystal-inspired approach is found to be highly successful in designing extraordinarily damage-tolerant architected materials. i.e. meta-crystals, necessitating in-depth fundamental studies reveal the underlying mechanisms responsible for strengthening meta-crystals. Such understanding will enable greater confidence control not only strength, but also spatial local deformation. In this study, shear band activities were investigated and discussed provide a solid basis predicting...
Programmable architected materials with the capabilities of precisely storing predefined mechanical behaviors and adaptive deformation responses upon external stimulations are desirable to help increase performance organic integration surrounding environments. Here, a new approach inspired by physical metallurgical principles is proposed allow designers not only enhance global strength but also tune properties (such as strength, modulus, plastic deformation) locally in create class...
The microstructure, texture, and dislocation configuration of cold‐drawn pearlitic steel wires were investigated by scanning electron microscopy (SEM), backscattering diffraction (EBSD), transmission (TEM). In addition, Fe/Fe 3 C interface structure at the atomic level was clearly observed analyzed high‐resolution TEM (HRTEM), microscopic deformation mechanism cementite lamellae different drawing strains is revealed. results show that pearlite turn to direction form ferrite <110> fiber...
Using the planar flow casting method to prepare ultra-thin silicon steel ribbons is an eco-friendly and efficient production method. However, poor wettability between copper result in difficulties formability by which limits its application of ribbons. The process parameters are key factors affecting magnetic properties non-oriented ribbons, wheel speed determines solidification rate melt, has important influence on surface quality Therefore, this paper, effect microstructures Fe-3.0 wt %Si...
Steel components in advanced gas-cooled reactors (AGRs) are subject to multiaxial deformation at high temperatures. Neutron diffraction has been used study the {111}, {200}, {220} and {311} grain family, also known as lattice plane, response during in-situ loading relaxation of notched bars 316H stainless steel 550 ºC. These experimental conditions have modelled using a multiscale approach that employs finite element models continuum, component, scale boundary for crystal plasticity model....
LPBF-manufactured Inconel718 lattices with six cubic and hexagonal structures two material microstructures (as-built, without γ" precipitation, heat-treated, precipitates, but similar cell/grain size, shape texture) were compressed at room temperature 600 °C. The behavior of the base under identical microstructure test conditions was also investigated using dedicated specimens single strut gauges. Irrespective topology, precipitation led to a transition in lattice mechanical from...
This work aims to investigate the effect of material microstructure on effectiveness hybridization in additively manufactured Inconel718 strut-based lattices. Two microstructures, namely as-built solid solution and a peak aged condition, are coupled with three hybrid architectures formed by alternating face centred cubic (matrix) octet-truss (reinforcement) domains containing 1, 8, 64 unit cells. Digital image correlation is utilized map local strain distribution during compression, finite...
A recent report on successful employment of the grain boundary strengthening to design extraordinarily damage-tolerant architected materials (i.e. meta-crystals) necessitates fundamental studies understand underlying mechanisms responsible for toughening and high performance meta-crystals. Such understanding will enable greater confidence control in developing performing smart materials. In this study, buckling lattice struts single crystal-like meta-crystals was firstly analysed reveal its...
Architected lattice metamaterials offer extraordinary specific strength and stiffness that can be tailored through the architecture. Meta-crystals mimic crystalline strengthening features in alloys to obtain high improved post-yield stability of materials. This study investigates synergistic effects base material’s intrinsic microstructure architected polycrystal-like architecture on mechanical behavior metamaterials. Four different polygrain-like meta-crystals were fabricated from 316L,...
The effects of low-temperature annealing on microstructure and mechanical properties cold-drawn pearlitic steel wires were investigated. tensile strength initially increases, peaking after 1 min annealing, then decreases with at 400 °C for longer durations. initial increase is deemed to result from age hardening during short-time °C, while the subsequent decrease in over times this temperature attributed softening. Age influenced by two factors: diffusion dissolved carbon atoms lamellar...
Abstract An image-based technique has been developed to measure the reduction of diameter a round bar sample. This process is based on imaging sample, and ensuring sufficient contrast provided detect edge The physically measured initial sample then converted number pixels, as tensile creep test performed, in determined via pixel count. For isotropic materials this can be axial plastic or strains. high temperature tests, images are acquired through windowed furnace. enables true stress –...