Liang Hua

Yancheng Institute of Technology

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i-10 index

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Chao Zeng

Nanjing University of Science and Technology

Wei Tian

Nanjing University of Aeronautics and Astronautics

Wenhe Liao

Nanjing University of Science and Technology

Xiaolong Shi

Shenyang Agricultural University

Rundong Zhou

State Key Laboratory of Transient Optics and Photonics

Yanzhou Li

West Anhui University

Song Fang

Nanjing Institute of Railway Technology

Chao Luo

Tokyo Metropolitan University

Linghong Shen

Shanghai Jiao Tong University

Liang-Bi Wang

Lanzhou Jiaotong University

Cooperative Institutions

Lanzhou Jiaotong University

Nanjing University of Science and Technology

Nanjing University of Aeronautics and Astronautics

Nanjing Institute of Railway Technology

Chongqing University

Yancheng Institute of Technology

Huazhong University of Science and Technology

University of Chinese Academy of Sciences

Beihang University

Henan University

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Review of Progress in Marine Anti-Fouling Coatings: Manufacturing Techniques and Copper- and Silver-Doped Antifouling Coatings

Coatings (2024)

Xiaolong Shi Liang Hua Yanzhou Li

Marine biofouling presents numerous challenges, including increased drag, reduced efficiency, and ecological imbalance. This review presents an overview of recent advances in antifouling coatings. First, essential preparation techniques such as cold spray, plasma spray, magnetron sputtering, and laser cladding are introduced, including the specific characteristics of each method. Next, the antifouling performance of Cu-doped and Ag-doped coating is analyzed. Emphasis is placed on the differences in coating composition, preparation methods, and their effects on antifouling and anticorrosion properties. The future development of antifouling technologies is also discussed, emphasizing the creation of multifunctional coatings, the optimization of coating microstructures for better performance, and the advancement of sustainable materials to minimize environmental impact.

Biofouling

10.3390/coatings14111454

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Citations (1)

Residual life evaluation of remanufacturing blanks considering the crack closure

Advances in Mechanical Engineering (2022)

Liang Hua Song Fang Rundong Zhou Linghong Shen

The nonlinear continuous fatigue cumulative damage model proposed by Chaboche was modified considering the effect of crack closure on fatigue damage, and the fatigue cumulative damage and residual life evaluation model of remanufactured blanks was obtained. The related parameters of the modified model were obtained from the data of symmetric cyclic tensile and compression fatigue tests. The residual life evaluation model of remanufactured blanks was verified by the two-stage loading (high and low loading and low and high loading) tensile and compressive fatigue test. The results show that the calculated values of the model are in good agreement with the test values, which proves that the modified model can accurately predict the residual life of remanufactured blanks.

Remanufacturing

Residual strength

Closure (psychology)

10.1177/16878132221139930

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Citations (0)

Investigation of Thermal Damage and the Consequent Fatigue Property of Laser Surface Heat Treated Component

Key engineering materials (2012)

Wei Tian Chao Zeng Liang Hua

In order to signify the thermal damage and the influence it has on the fatigue property, a 3D finite element method, as well as experiment investigation, was employed for this research. By the study, it suggests that laser surface scanning can bring about some tensile residual stress and a heat affected zone in the workpiece, so as to lead a fall in fatigue life cycles. Since the fatigue character is affected by the residual stress and the microstructure change, which relate to the laser process parameters, it is expected to draw a scalar variable from stress feature and microstructure parameter to stand the level of thermal damage influence.

10.4028/www.scientific.net/kem.525-526.241

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Citations (1)

Numerical Simulation of Temperature Field and Residual Stress Distribution for Laser Cladding Remanufacturing

Advances in Mechanical Engineering (2014)

Liang Hua Wei Tian Wenhe Liao Chao Zeng

A three-dimensional finite element model was employed to simulate the cladding process of Ni-Cr-B-Si coatings on 16MnR steel under different parameters of laser power, scanning speed, and spot diameter. The temperature and residual stress distribution, the depth of the heat affected zone (HAZ), and the optimized parameters for laser cladding remanufacturing technology were obtained. The orthogonal experiment and intuitive analysis on the depth of the HAZ were performed to study the influence of different cladding parameters. A new criterion based on the ratio of the maximum tensile residual stress and fracture strength of the substrate was proposed for optimization of the remanufacturing parameters. The result showed well agreement with that of the HAZ analysis.

Cladding (metalworking)

Remanufacturing

Stress field

10.1155/2014/291615

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Citations (14)

Technologies in Marine Antifouling and Anti-Corrosion Coatings: A Comprehensive Review

Coatings (2024)

Liang Hua Xiaolong Shi Yanzhou Li

With the rapid development of marine engineering, effective antifouling and anti-corrosion technologies are essential for ensuring the safety and longevity of marine facilities. This review synthesizes current research on various coating technologies designed to combat marine biological fouling and corrosion. It analyzes the causes of marine biological fouling and corrosion, discusses their potential impacts on the safety of ships and marine structures, and emphasizes the need for effective protective systems. The review covers current antifouling coating technologies, including the preparation of low-surface-energy coatings, conductive coatings, biomimetic coatings, polysiloxane coatings, polyurea coatings, epoxy coatings, polyurethane coatings, and high-entropy alloy coatings. Anti-corrosion coatings are also discussed, with a focus on the characteristics of epoxy, polyurethane, and polyurea coatings, as well as metal-based coatings, alongside their corrosion resistance in marine environments. Based on existing research, the review summarizes ongoing challenges in marine antifouling and anti-corrosion coating technologies, and offers perspectives on future research directions and technological developments.

Biofouling

Marine industry

10.3390/coatings14121487

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Citations (2)

Damage and Fatigue Life Evaluation for Laser Cladding Remanufactured Wheel

Advances in Materials Science and Engineering (2022)

Liang Hua Rundong Zhou

Owing to high speeds and heavy loads, the wheels of trains and locomotives undergo gradual but significant damage. Conventionally, these damaged wheels are repaired using the rotatory repair method; however, this approach results in large amounts of material waste. To address this issue, in this study, laser cladding remanufacturing technology was employed to repair a damaged wheel. The contact stress and creep characteristics of the cladded wheel were determined using Simpack, a dynamic simulation software program. The existing damage function model, which is based on the wear number, was modified, and this modified model was used to perform damage assessments for the remanufactured wheel. Furthermore, a life evaluation model for wheels remanufactured using this laser cladding technology was established. The service life of the cladded wheel calculated using this model was in good agreement with the design life of the wheel.

Remanufacturing

Service life

Cladding (metalworking)

10.1155/2022/2060564

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Citations (8)

Microstructure and porosity evaluation in laser-cladding deposited Ni-based coatings

Surface and Coatings Technology (2016)

Chao Zeng Wei Tian Wen He Liao Liang Hua

Cladding (metalworking)

10.1016/j.surfcoat.2016.03.083

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Citations (83)

Thermo-hydraulic performance optimization of wavy fin heat exchanger by combining delta winglet vortex generators

Applied Thermal Engineering (2019)

Chao Luo WU Shuai KeWei Song Liang Hua Liang-Bi Wang

Vortex generator

Fin

Wingtip device

Heat transfer enhancement

10.1016/j.applthermaleng.2019.114343

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Citations (63)

Study of Thermal Damage Introduced by Laser Cladding Process Part 2. A Generalized Description

Springer eBooks (2013)

Wei Tian Chao Zeng Wenhe Liao Liang Hua

Cladding (metalworking)

10.1007/978-3-319-48764-9_298

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Citations (0)

The effect of electromagnetic stirring on the microstructure and corrosion of mischmetal modified AZ91D magnesium alloy

Materials Science (2009)

Y. X. Jin Liang Hua Xiaoxue Xu Qing Peng

The microstructure and corrosion behaviour of mischmetal modified AZ91D magnesium alloy in the presence or absence of a rotating electromagnetic field have been investigated. The study suggests that the size and volume fraction of the β (Mg17Al12) phase in the alloy decreases as magnetic field intensity increases. The immersion test results show that the mass loss for the alloy solidified in the absence of a magnetic filed is always larger than that for the alloy solidified under magnetic field. The electrochemical corrosion experiments indicate that the corrosion potential of the alloys increases from –1.56 to –1.51 V, while the corrosion current density decreases from 6.31 to 1.58 mA·cm –2 , and the charge transfer resistance increases from 3.17 to 11.32 kΩ·cm 2 as the excitation voltage increases from 0 to 120 V. The enhancement of the corrosion resistance is attributed to the grain refinement, and to the volume fraction reduction of the β (Mg17Al12) phase under a rotating electromagnetic field.

Mischmetal

Volume fraction

Source

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Citations (1)