Wei Shi

ORCID: 0000-0002-5427-5216
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Research Areas
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Corrosion Behavior and Inhibition
  • Semiconductor Quantum Structures and Devices
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Metal and Thin Film Mechanics
  • Advanced Semiconductor Detectors and Materials
  • ZnO doping and properties
  • Titanium Alloys Microstructure and Properties
  • Quantum Dots Synthesis And Properties
  • Microstructure and mechanical properties
  • Concrete Corrosion and Durability
  • Gas Sensing Nanomaterials and Sensors
  • Semiconductor materials and devices
  • High Entropy Alloys Studies
  • High-Temperature Coating Behaviors
  • Copper-based nanomaterials and applications
  • Microstructure and Mechanical Properties of Steels
  • Additive Manufacturing Materials and Processes
  • Chalcogenide Semiconductor Thin Films
  • Ga2O3 and related materials
  • Advanced materials and composites
  • Advanced Thermoelectric Materials and Devices
  • High Temperature Alloys and Creep
  • Diamond and Carbon-based Materials Research

Shanghai University
2007-2025

Ministry of Education of the People's Republic of China
2025

Beihang University
2021-2024

Guizhou University
2016-2024

Nanyang Technological University
1998-2024

National University of Singapore
2024

Hunan Provincial Science and Technology Department
2022-2024

Tongren University
2016-2023

Zhengzhou University
2023

Yonsei University
2022

Abstract Energy-dissipation elastomers relying on their viscoelastic behavior of chain segments in the glass transition region can effectively suppress vibrations and noises various fields, yet operating frequency those is difficult to control precisely its range narrow. Here, we report a synergistic strategy for constructing polymer-fluid-gels that provide controllable ultrahigh energy dissipation over broad range, which by traditional means. This realized tailoring relaxation confined...

10.1038/s41467-021-23984-2 article EN cc-by Nature Communications 2021-06-14

Screening a green corrosion inhibitor that can prevent Al anode and enhance the battery performance is highly significant for developing next-generation Al-air batteries. This work explores non-toxic, environmentally safe, nitrogen-rich amino acid derivative, N(α)-Boc-l-tryptophan (BCTO), as anodes. Our results confirm BCTO has an excellent inhibition effect Al-5052 alloy in 4 M NaOH solution. An optimum addition (2 mM) increased performance; efficiency was 68.2%, utilization reached 92.0%....

10.1021/acs.langmuir.3c00032 article EN Langmuir 2023-04-19

The synergistic effect between heterogeneous structures has been proved to enhance the strength and plasticity of alloys, especially in context single-phase face-centered cubic (FCC) high-entropy alloys with low stacking fault energy. This study explores effects on FCC FeCoCrNiMo0.2 alloys. Through a combination cryogenic rolling annealing at 1000 °C for 0.5 h (RA-1000), alloy demonstrates exceptional strength-ductility synergy work-hardening ability. structure comprises fine grains,...

10.1016/j.jmrt.2024.01.037 article EN cc-by-nc-nd Journal of Materials Research and Technology 2024-01-06

Abstract Vibrations with various frequencies in daily life and industry can cause health hazards fatigue failure of critical structures, which requires the development elastomers high energy dissipation at desired frequencies. Current strategies relying on tuning characteristic relaxation time polymer chains are mostly qualitative empirical methods, it is difficult to precisely control damping performances. Here, we report a general strategy for constructing dynamic crosslinked fluid gels...

10.1002/anie.202401845 article EN Angewandte Chemie International Edition 2024-03-12

High-density dislocations and nano-twinning are known to significantly influence the work hardening ability of materials, presenting a potent approach for enhancing their overall strength. Here, superior tensile strength-ductility synergy in FeCoCrNiMo0.2 high entropy alloy (HEA) with density dislocation was achieved by employing cryo-rolling followed subsequent annealing. Through electron microscope observation, effects geometrically necessary on strength plasticity elucidated. The...

10.1016/j.jmrt.2023.08.003 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-08-04

The inhibition effects of L-tryptophane (Trp) and its synergistic effect with KI on the corrosion mild steel in 1.0 M HCl solution have been investigated by electrochemical impedance spectroscopy (EIS) potentiodynamic polarization (PDP) measurements.The results show that efficiency increases concentration Trp further when exists.The between was discussed calculating synergism parameter, which suggests there is a cooperative mechanism iodide anion cation.Finally, Monte Carlo simulation...

10.20964/2017.01.04 article EN cc-by-nc-nd International Journal of Electrochemical Science 2016-12-14

Inconel 718/316L dissimilar welding is widely used in nuclear power plants, which suffers from the deterioration of mechanical properties and corrosion resistance after welding, attributed to formation brittle phase existence residual stress. In this paper, impact post-weld heat treatment (PWHT) on joints systematically investigated. By conducting PWHT notable reductions stress as-welded are significantly reduced microstructure improved, resulting an enhanced strength-ductility synergy...

10.1016/j.jmrt.2023.07.202 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-07-26

An insoluble layer is deposited on 904L in HF due to a preferential reaction between [F<sup>−</sup>] and the [Ni] from alloy. This deposit helps isolate aggressive ions base metal, while inhibits passivation of HF.

10.1039/c7ra12453h article EN cc-by RSC Advances 2018-01-01

The corrosion inhibition performance of a quaternary phosphonium-based ionic liquid, i.e., hexadecyltriphenylphosphonium bromide (HPP), on mild steel in 1 M HCl solution was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods. surface characterization examined scanning electron microscopy with energy-dispersive X-ray (SEM-EDS). results revealed that the efficiency increases its increasing concentration, it can reach up to 99.1% at...

10.3390/su15043103 article EN Sustainability 2023-02-08

Al-air battery has been regarded as a promising new energy source. However, the self-corrosion of aluminum anode leads to loss capacity and decrease in longevity, limiting its commercial applications. Herein, indole-2-carboxylic acid (ICA) added 4 M NaOH corrosion inhibitor. Its impact on alloy enhancement functionality batteries at various concentrations have investigated. X-ray photoelectron spectroscopy (XPS), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy,...

10.3390/molecules28104193 article EN cc-by Molecules 2023-05-19

The protective ability of the regenerated passive film decreased sharply under low DOC. Al and V ions dissolved in excess, a large number oxygen atoms entered matrix, leading to internal oxidation.

10.1039/d3ra03865c article EN cc-by-nc RSC Advances 2023-01-01
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