Chang Shu

ORCID: 0000-0003-0869-7554
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About
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Research Areas
  • Additive Manufacturing and 3D Printing Technologies
  • Additive Manufacturing Materials and Processes
  • High Entropy Alloys Studies
  • Metal Forming Simulation Techniques
  • Metallurgy and Material Forming
  • Acoustic Wave Resonator Technologies
  • Ferroelectric and Piezoelectric Materials
  • Microwave Dielectric Ceramics Synthesis
  • Microstructure and Mechanical Properties of Steels
  • Metal and Thin Film Mechanics
  • Advanced materials and composites
  • Innovations in Concrete and Construction Materials
  • Laser and Thermal Forming Techniques
  • Economic theories and models
  • Economic Growth and Development
  • Advanced ceramic materials synthesis
  • Engineering Technology and Methodologies
  • Welding Techniques and Residual Stresses

University of Birmingham
1999-2024

Exploring the feasibility of producing near-net-shape components with advanced properties and geometrical features via 3D printing has incrementally become research focus various studies. Digital light processing (DLP) technology can manufacture complex-structured for technical applications. The aims this were to investigate Al2O3 ceramic slurry preparation procedures identify ideal add an in-house-developed slurry, determine optimal DLP parameters conditions while understanding their effect...

10.3390/machines11030321 article EN cc-by Machines 2023-02-23

IN738LC alloy has broad application potential in modern aerospace and energy industries due to its excellent high-temperature durability, corrosion fatigue resistance, however, been greatly limited high crack sensitivity. To address this challenge, research proposes a method of incorporating TiC nanoparticles mitigate cracks enhance the strength nickel-based materials. The crack-free TiC-IN738LC materials were successfully fabricated using laser-powder bed fusion. relationship between...

10.1016/j.jmrt.2023.10.283 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-11-01

TC11 titanium alloy is widely used in aerospace. To investigate the production of parts high quality and performance, this paper adopts Laser powder bed fusion (L-PBF) technique to prepare specimens. We analyze detail effects scanning strategy forming angle on performance through a combination theory experiment. The results show that upper surface strip-scanned molded highest, better than side under different strategies. channel lap adhesion were main factors affecting roughness. With...

10.3390/met13050983 article EN cc-by Metals 2023-05-19

Abstract Piezoelectric ceramics are widely used in sensors, actuators, and ultrasonic transducers due to their ability achieve efficient conversion between electric mechanical energy. There is a current drive toward lead‐free material systems capable of achieving comparable piezoelectric performance environmentally hazardous, but commonly used, lead‐based materials such as lead zirconate titanate. This work constructs an accurate phase diagram for barium calcium titanate (Ba 1‐x Ca x TiO 3...

10.1111/jace.15415 article EN Journal of the American Ceramic Society 2018-01-02

Abstract Induction heating-assisted single point incremental sheet forming was established for Ti-6Al-4V thin sheets at closed and above beta-transus temperature (980 °C). In order to eliminate geometric inaccuracy adherence of lubricant on the surface caused by elevated temperature, a cooling system designed tool decrease thermal expansion friction. A radial basis function (RBF)-based path optimisation developed study measured accuracy, force. By adjusting control integrating RBF framework,...

10.1007/s00170-022-10213-3 article EN cc-by The International Journal of Advanced Manufacturing Technology 2022-10-05

In this work, a numerical model is proposed to analyze the influence of particle–particle interaction in laser directed energy deposition or LMD (laser metal deposition) CM247 Ni-based superalloy. The based on analysis contact between particles and potential agglomeration powder predict conditions at nozzle exit. Simulation results were experimentally validated good agreement was observed. At exit mainly large (>100 µm) are found small ones (<10 tend flow away from region. This also observed...

10.1016/j.apt.2024.104348 article EN cc-by-nc-nd Advanced Powder Technology 2024-02-05

Abstract The uniform thickness hollow axle is one of the lightest weight axles in high-speed rail industry. It can effectively reduce unsprung mass and further improve train speed. Therefore, due to its importance significance, it crucial research develop axle. To understand microstructural evolution during three-roll skew-rolling (TRSR) forming, 30CrMoA alloy steel was used this study. A constitutive model established by SIMUFACT FORMING finite element software utilized simulate...

10.1007/s00170-022-09583-5 article EN cc-by The International Journal of Advanced Manufacturing Technology 2022-06-30

Metal matrix composites have gained widespread adoption in various industries such as aerospace and deep-sea exploration owing to their exceptional multi-functional properties. The pursuit of fabricating high-quality composite materials has always been a promising endeavor. However, the application fields IN738LC greatly limited due its high crack sensitivity. To address this challenge, research proposes method incorporating TiC nanoparticles mitigate cracks enhance strength nickel-based...

10.2139/ssrn.4459395 preprint EN 2023-01-01

Abstract The uniform thickness hollow axle is one of the lightest weight axles in high-speed rail industry. It can effectively reduce unsprung mass and further improve train speed. Therefore, due to its importance significance, it crucial research develop axle. To understand microstructural evolution during three-roll skew-rolling (TRSR) forming, 30CrMoA alloy steel was used this study. A constitutive model established by SIMUFACT FORMING finite element software utilized simulate...

10.21203/rs.3.rs-1526129/v1 preprint EN cc-by Research Square (Research Square) 2022-05-06

This paper addresses the issue of whether financial environment is a mechanism determining club formation and membership. It first reviews convergence debate empirical approaches to issue. Then work follows Quah’s non‐parametric approach mirrors, some extent, on international openness carried out by Proudman, Redding Bianchi. The findings from stage study corroborate previous studies in establishing twin‐peak dynamics cross‐country income distribution evolution. 73 countries with data for...

10.1111/1467-9957.67.s1.4 article EN Manchester School 1999-01-01
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