A5083535342- Shape Memory Alloy Transformations
- Magnetic and transport properties of perovskites and related materials
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetic Properties and Applications
- Aluminum Alloys Composites Properties
- Heusler alloys: electronic and magnetic properties
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing and 3D Printing Technologies
- Microstructure and mechanical properties
- Advanced Welding Techniques Analysis
- Welding Techniques and Residual Stresses
- Advanced materials and composites
- Titanium Alloys Microstructure and Properties
- Piezoelectric Actuators and Control
- Intermetallics and Advanced Alloy Properties
- Magnetic Properties of Alloys
- Nuclear Materials and Properties
- Metallic Glasses and Amorphous Alloys
- Microstructure and Mechanical Properties of Steels
- Metallurgical Processes and Thermodynamics
- Transition Metal Oxide Nanomaterials
- Corrosion Behavior and Inhibition
Yanshan University
2016-2024
State Key Laboratory of Metastable Materials Science and Technology
2019-2023
University of Science and Technology Beijing
2022
Northeastern University
2015-2022
Helmholtz-Zentrum Hereon
2019
Universidad del Noreste
2013-2016
Cranfield University
2015
Many additively manufactured (AM) materials have properties that are inferior to their wrought counterparts, which impedes industrial implementation of the technology. Bulk deformation methods, such as rolling, applied in-process during AM can provide significant benefits including reducing residual stresses and distortion, grain refinement. The latter is particularly beneficial for titanium alloys where normally seen large prior β grains converted a fine equiaxed structure – giving...
The application of wire + arc additively manufactured (WAAM) aluminum alloys has been restricted by the porosity defect, which is generally detrimental to mechanical properties. Suppressing micropores in WAAM components attracted considerable attention recent years. Inter-layer rolling was introduced eliminate during deposition Al–Cu6.3 and Al–Mg4.5 alloys. distribution characteristics individual morphology were revealed X-ray diffraction tomography. Key findings demonstrated that number,...
The wire with a composition of AlCu4.3%Mg1.5% was customized and used to deposit the WAAM alloy power source cold metal transfer. microstructure, defect, mechanical properties as-deposited heat-treated alloys were studied. Key findings demonstrated that microstructure characterized by hierarchical distribution dendrites, equiaxed grains, slight number columnar grains. volume fraction network-like scattered coarse particles second phases θ + S reduced 95% after T6 heat treatment. With an...
Wire+arc additive manufacture (WAAM) is a high build rate process for production of near-net shape components layer by layer. The performance and quality the deposited metal are heavily affected properties wires, which raw materials WAAM. Therefore there may be higher requirements qualities wires WAAM than welding. External surface qualities, micro hardness, composition microstructures five ER4043 aluminium were investigated in present research. results indicate that internal external exert...
A 2319 aluminum alloy is deposited by the Wire+Arc Additive Manufacturing technology with Cold Metal Transfer process. Porosity that are both existing in as-deposited and as-heat treated state metal revealed optical microscopy quantitatively analyzed. It explains reason why newly initiated pores easily tend to gather between each layer around fusion line zone for WAAM after heat treatment. The inner morphology of demonstrated Scanning Electron Microscopy. evolution distribution during high...
Exploring novel materials with large magnetocaloric effect and excellent mechanical properties near room temperature (RT) are highly desired for Ni-Mn based Heusler alloys. In this work, the martensitic transformation, magnetic properties, of Ni50-xCoxMn50-yTiy (x = 13–15, y 13–16) alloys were systematically investigated by tuning Co or Ti contents. The magnetism austenite was enhanced an increase in content. 5M 6M martensites observed Ni-Co-Mn-Ti transmission electron microscopy....
An investigation has been performed into the compatibility of aluminum alloys used in aerospace industry with Wire-Arc Additive Manufacturing. Modelling and preliminary experimental trials have to show that it is viable use Al-Cu-Mg alloys, like 2024, without solidification cracking. A relatively fine texture free grain structure was obtained as-deposited WAAM material addition inter-pass deformation, by rolling each added layer, led further size refinement. With adequate control porosity...