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Author

Y. Wang

Other affiliations: Guangzhou University
Bio: Y. Wang is an academic researcher from Harbin Institute of Technology. The author has contributed to research in topics: Thermal barrier coating & Coating. The author has an hindex of 12, co-authored 26 publications receiving 438 citations. Previous affiliations of Y. Wang include Guangzhou University.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors investigated the thermal shock behavior of three as-sprayed TBCs at 1000°C and 1200°C with NiCrAlY as the bond coat, and the results indicated that the thermal cycling lifetime of the double-ceramic-layer (DCL) TBC is longer than that of SCL 8YSZ TBC due to the fact that the DCL LZ/8YSZ further enhance the thermal insulation effect, improve the sintering resistance ability and relieve the thermal mismatch between the ceramic layer and the metallic layer at

166 citations

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TL;DR: An integrated approach based on the convolutional neural network DeepLabv3+ for crack detection, as well as a Crack quantification algorithm for crack quantification at the pixel level that could potentially serve as the basis of an automated, cost-effective pavement-condition assessment scheme for the operation and maintenance of pavement.

103 citations

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TL;DR: In this paper, a systematic review was conducted of policies related to prefabricated construction in China, which revealed a closely integrated policy network, the evolution of ambitious policy objectives, and the development of a combination of various policy instruments over different stages.

67 citations

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TL;DR: Wang et al. as discussed by the authors show how effective project team communications is one of the major challenges to a construction project's success and present the directions for further research to improve project communications in large-scale construction projects.
Abstract: Purpose – The purpose of this paper is to show how effective project team communications is one of the major challenges to a construction project's success. The success of large‐scale construction projects is critical to Chinese economy. The purposes of the research are to grasp the current status of communications in large‐scale construction projects in China and lay a basis for further research on project communications.Design/methodology/approach – A survey was conducted by postal questionnaire and telephone.Findings – Through analyzing the data obtained from the survey, the communication problems in large‐scale construction projects in China are exposed. The roots of the problems are summarized as lack of good communication mechanism, weak organizational structures of construction teams, lack of uniform standards for construction information, and lack of support for advanced communication technologies.Originality/value – The paper presents the directions for further research to improve communications ...

59 citations

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TL;DR: In this paper, rare earth (RE)-modified NiCrAlY powders were prepared by ultrasonic gas atomization and deposited on stainless steel substrate by high-velocity oxygen fuel spraying.
Abstract: Rare earth (RE)-modified NiCrAlY powders were prepared by ultrasonic gas atomization and deposited on stainless steel substrate by high-velocity oxygen fuel spraying. The effects of the RE on the microstructure, properties, and thermal shock resistance of the NiCrAlY coatings were investigated. The results showed that the NiCrAlY powders were refined and distributed uniformly after adding RE, while the number of unmelted particles in the coatings was reduced. Moreover, the RE-modified coatings showed improved microhardness and distribution uniformity. The microhardness of the coating reached a maximum after adding 0.9 wt.% RE, being 34.4 % higher than that of coatings without RE. The adhesive strength increased and reached a maximum after adding 0.6 wt.% RE, being 18.8 % higher than that of coatings without RE. Excessive RE decreased the adhesive strength. The thermal cycle life of NiCrAlY coatings increased drastically with RE addition. The coating with 0.9 wt.% RE showed optimum thermal shock resistance, being 21.2 % higher than that of coatings without RE.

38 citations


Cited by
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TL;DR: In this article, the status and the trends in megaproject research were investigated by conducting a structured literature review and a total of 85 relevant articles identified from eight peer-reviewed CEM journals between 2000 and 2010 were analyzed.
Abstract: The rapid growth of construction megaprojects worldwide has triggered a growing number of papers published in this area in the past two decades, suggesting that construction megaproject management has become an emerging area in the field of construction engineering and management (CEM). This study aims to investigate the status and the trends in megaproject research by conducting a structured literature review. A total of 85 relevant articles identified from eight peer-reviewed CEM journals between 2000 and 2010 were analyzed based on the number of articles published annually, institutional and regional contributions, citations, and categorization of research interests and methodologies. Analysis results indicated that developed countries, such as the United Kingdom, the United States, and Australia, have enjoyed significant advantages in megaproject research because of their greater experience, while megaproject research in developing countries, such as Russia, India, Turkey, and Vietnam, remains...

161 citations

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TL;DR: In this article, the authors investigated the effects of communication-conflict interaction on the success of construction projects and found that task conflict was positively related to project success, while enhanced communication among teams stimulated the positive effect of task conflict.

160 citations

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TL;DR: In this paper, the authors evaluated and compared thermal shock behavior of plasma-sprayed nanostructured and conventional yttria stabilized zirconia (YSZ) thermal barrier coatings (TBCs).

143 citations

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TL;DR: A review on recent development of nanocomposite coatings is presented in this article, providing an overview of the nanocomposition coatings in various aspects dealing with the classification, preparative method, and characterization methods, and the potential applications in areas such as the anticorrosion, antiwear, superhydrophobic area, self-cleaning, antifouling/antibacterial area, and electronics.
Abstract: Incorporation of nanofillers into the organic coatings might enhance their barrier performance, by decreasing the porosity and zigzagging the diffusion path for deleterious species. Thus, the coatings containing nanofillers are expected to have significant barrier properties for corrosion protection and reduce the trend for the coating to blister or delaminate. On the other hand, high hardness could be obtained for metallic coatings by producing the hard nanocrystalline phases within a metallic matrix. This article presents a review on recent development of nanocomposite coatings, providing an overview of nanocomposite coatings in various aspects dealing with the classification, preparative method, the nanocomposite coating properties, and characterization methods. It covers potential applications in areas such as the anticorrosion, antiwear, superhydrophobic area, self-cleaning, antifouling/antibacterial area, and electronics. Finally, conclusion and future trends will be also reported.

138 citations

Journal ArticleDOI
TL;DR: In this article, the authors reviewed the research progress of the finite element modeling (FEM) on the study of the thermal insulation and associated failure problems of the TBCs and proposed a solution method based on the thermal-mechanical coupled technique.
Abstract: To understand the thermal insulation and failure problems of the thermal barrier coatings (TBCs) deeply is vital to evaluate the reliability and durability of the TBCs. Actually, experimental methods can not reflect the real case of the TBCs during its fabrication and service process. Finite element modeling (FEM) play an important role in studying these problems. Especially, FEM is very effective in calculating the thermal insulation and the fracture failure problems of the TBCs. In this paper, the research progress of the FEM on the study of the thermal insulation and associated failure problems of the TBCs has been reviewed. Firstly, from the aspect of the investigation of the heat insulation of the TBCs, the thermal analysis via FEM is widely used. The effective thermal conductivity, insulation temperature at different temperatures of the coating surface considering the thermal conduct, convection between the coating and the environment, heat radiation at high temperature and interfacial thermal resistance effect can be calculated by FEM. Secondly, the residual stress which is induced in the process of plasma spraying or caused by the thermal expansion coefficient mismatch between the coating and substrate and the temperature gradient variation under the actual service conditions can be also calculated via FEM. The solution method is based on the thermal–mechanical coupled technique. Thirdly, the failure problems of the TBCs under the actual service conditions can be calculated or simulated via FEM. The basic thought is using the fracture mechanic method. Previous investigation focused on the location of the maximum residual stress and try to find the possible failure positions of the TBCs, and to predict the possible failure modes of the TBCs. It belonged to static analysis. With the development of the FEM techniques, the virtual crack closure technique (VCCT), extended finite element method (XFEM) and cohesive zone model (CZM) have been used to simulate the crack propagation behavior of the TBCs. The failure patterns of the TBCs can be monitored timely and dynamically using these methods and the life prediction of the TBCs under the actual service conditions is expected to be realized eventually.

135 citations