A5100340676- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Additive Manufacturing Materials and Processes
- Advanced Materials Characterization Techniques
- Building Energy and Comfort Optimization
- High Temperature Alloys and Creep
- Welding Techniques and Residual Stresses
- Additive Manufacturing and 3D Printing Technologies
- Heat Transfer and Optimization
- Adsorption and Cooling Systems
- Advanced materials and composites
- Machine Learning in Materials Science
- Titanium Alloys Microstructure and Properties
- Innovations in Concrete and Construction Materials
- Advanced machining processes and optimization
- Metal Alloys Wear and Properties
- Material Selection and Properties
- Shape Memory Alloy Transformations
- Cellular and Composite Structures
- Advanced Materials and Mechanics
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Microstructure and Mechanical Properties of Steels
- Belt Conveyor Systems Engineering
City University of Hong Kong
2022-2024
Shanghai Jiao Tong University
2024
Soochow University
2023
Institute of Metal Research
2023
Chinese Academy of Sciences
2023
University of Manchester
2020
Shandong University of Technology
2016
Virginia Tech
2015
Dalian University of Technology
2010-2011
Existing commercial powders for laser additive manufacturing (LAM) are designed traditional methods requiring post heat treatments (PHT). LAM's unique cyclic thermal history induces intrinsic treatment (IHT) on materials during deposition, which offers an opportunity to develop LAM-customized new materials. This work customized a novel Fe-Ni-Ti-Al maraging steel assisted by machine learning leverage the IHT effect in situ forming massive precipitates LAM without PHT. Fast precipitation...
Cellular structures offer high specific strength and can stiffness, good impact absorption, thermal acoustic insulation. A major challenge in fabricating cellular is joining various components. It well known that joints, either welded or bolted bonded with an adhesive, serve as stress concentrators. Here, we overcome this shortcoming by the use of metal casting into 3D printed sand molds for sandwich panels. Furthermore, printing allows fabrication without need a pattern, thus enables...
Nanoprecipitation strengthening has been widely adopted as an effective way to design high-strength alloys, which generally leads the loss of ductility. Here we unveil unique bifunctionality L12-structured nanoprecipitates in a FeCoNiAlTi-type high entropy alloy (HEA), enabling combined increase tensile strength and Results show that as-quenched precipitate-free matrix alloys undergo thermally-induced martensite transformation form body-centered cubic (BCC) phase with limited In strong...
Two patterns of functionally graded materials (FGMs) were successfully fabricated whose compositions gradually varied from 100% stainless steel 316L to Inconel718 superalloy using laser engineered net shaping process. The microstructure characterization, composition analysis, and microhardness along the direction investigated. comparison revealed distinctions in solidification behavior, evolution two patterns. In end, abrasive wear resistance material was
The powder diameter affects the heat generation and further influences quality of weldments when MZA is used as laser-absorbents to carry out laser transmission welding (LTW). It difficult measure temperature due its extremely short duration. A mathematical model considering multiple reflections metal established predict generation. verified then describe influence line energy density on profile LTW process. results demonstrate that from experiments simulation are consistent. Therefore, suitable in
Functionally gradient materials(FGMs) were successfully fabricated with compositions gradually changed from 100% stainless steel 316L to Ni25 alloy using laser engineered net shaping(LENS) technology. The microstructure characterization, composition analysis and microhardness along the direction are investigated. Meanwhile, defects in sample such as cracks pores analyzed. results indicated that evolves columnar dendrite cellular-crystal or equiaxed dendrite.
Microstructures is an international peer-reviewed, open access, online journal. The journal of publishes articles covering new research and developments, perspectives, reviews related to the microstructures materials, including, but not limited metals alloys, ceramics, polymers, composites, crystals, glasses, biomaterials, interfaces nanomaterials.
L12-strengthened high entropy alloys (HEAs) usually suffer from severe intermediate-temperature embrittlement. In this study, we successfully achieved a brittle-to-ductile transition at intermediate temperatures in (Ni2Co2FeCr)92Nb4Al4 HEA via alleviating intergranular oxidation with the addition of 1.5 at.% Si. It was revealed that embrittlement alloy originates D019 precipitates which weakens grain-boundary cohesion. The alloyed Si preferentially partitioned into precipitates,...