Effect of rare earth elements and their oxides on tribo-mechanical performance of laser claddings: A review

Quazi, M. M.; Fazal, M. A.; Haseeb, A.S.M.A.; Yusof, Farazila; Masjuki, H.H.; Ahmed, Arslan

doi:10.1016/s1002-0721(16)60061-3

Cited by 139 publications

(27 citation statements)

References 82 publications

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“…One of the reasons for the enhancement of the wear-resistant ability of nano-coatings is the refinement of the grains by the nanoparticles. For example, in laser cladding, the addition of a certain amount of nano rare earth particles improves the microstructure of the coating [81]. The rare earth elements have a large atomic radius and play an important role in grain refinement.…”

Section: Grain Refinementmentioning

confidence: 99%

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

et al. 2020

Coatings

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Nano-coating has been a hot issue in recent years. It has good volume effect and surface effect, and can effectively improve the mechanical properties, corrosion resistance and wear resistance of the coatings. It is important to improve the wear resistance of the material surface. The successful preparation of nano-coatings directly affects the application of nano-coatings. Firstly, the preparation methods of conventional surface coatings such as chemical vapor deposition and physical vapor deposition, as well as the newly developed surface coating preparation methods such as sol-gel method, laser cladding and thermal spraying are reviewed in detail. The preparation principle, advantages and disadvantages and the application of each preparation method in nano-coating are analyzed and summarized. Secondly, the types of nano-coating materials are summarized and analyzed by inorganic/inorganic nanomaterial coatings and organic/inorganic nanomaterial coatings, and their research progress is summarized. Finally, the wear-resistant mechanism of nano-coatings is revealed from three aspects: grain refinement, phase transformation toughening mechanism and nano-effects. The application prospects of nano-coatings and the development potential combined with 3D technology are prospected.

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Section: Grain Refinementmentioning

confidence: 99%

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

et al. 2020

Coatings

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“…Figure 50 illustrates methods used in laser cladding. Figure 50: Laser cladding process using (a) by gravity [117], (b) injected powder [118], (c) preplaced powder [119] Scan direction Laser beam…”

Section: Laser Cladding Laser Cladding Laser Cladding Laser Cladding mentioning

confidence: 99%

“…Laser cladding (LCT) is a promising technique because it produces full-dense coatings with outstanding properties [120], forms strong metallurgical bond between substrate and coating [121], able to deposit ceramics or metals on metallic substrate [122], and leads to reduced heat affected zone (HAZ), Figure 51 shows different zone induced at cladding area [119]. Also, it provides controlled shape of the coating, flexible process, controlled degree of dilution, low surface roughness with high deposition rate, and requires minimum surface preparations [123].…”

Section: Laser Cladding Laser Cladding Laser Cladding Laser Cladding mentioning

confidence: 99%

“…Also, it provides controlled shape of the coating, flexible process, controlled degree of dilution, low surface roughness with high deposition rate, and requires minimum surface preparations [123]. [119] LCT offers metallurgical bonding between coating and substrate, as well as, excellent full-dense coating layer. Different works investigated coating Ti-alloys and SS -as the most common alloys used in implants -with different bioactive materials as HA and Bioglass to enhance the corrosion resistance, besides the bioactivity behavior.…”

Section: Laser Cladding Laser Cladding Laser Cladding Laser Cladding mentioning

confidence: 99%

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Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

Ibrahim

Sarhan

Yusuf

et al. 2017

Journal of Alloys and Compounds

275

100

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“…It can produce high-performance alloy surfaces on inexpensive metal substrates without affecting the properties of the matrix, thus conserving valuable rare metal materials [2,3]. Laser cladding technology has not been widely promoted since its conception, mainly because the most difficult problem in laser cladding is the cracking of the cladding layer, which limits its practical application [4]. The laser cladding of high-hardness, nickel-based coatings is particularly prone to crack generation, and is difficult to find the optimal process in traditional process experiments [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Crack Sensitivity Control of Nickel-Based Laser Coating Based on Genetic Algorithm and Neural Network

Huang

Wang

et al. 2019

Coatings

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This paper aimed to establish a nonlinear relationship between laser cladding process parameters and the crack density of a high-hardness, nickel-based laser cladding layer, and to control the cracking of the cladding layer via an intelligent algorithm. By using three main process parameters (overlap rate, powder feed rate, and scanning speed), an orthogonal experiment was designed, and the experimental results were used as training and testing datasets for a neural network. A neural network prediction model between the laser cladding process parameters and coating crack density was established, and a genetic algorithm was used to optimize the prediction results. To improve their prediction accuracy, genetic algorithms were used to optimize the weights and thresholds of the neural networks. In addition, the performance of the neural network was tested. The results show that the order of influence on the coating crack sensitivity was as follows: overlap rate > powder feed rate > scanning speed. The relative error between the predicted value and the experimental value of the three-group test genetic algorithm-optimized neural network model was less than 9.8%. The genetic algorithm optimized the predicted results, and the technological parameters that resulted in the smallest crack density were as follows: powder feed rate of 15.0726 g/min, overlap rate of 49.797%, scanning speed of 5.9275 mm/s, crack density of 0.001272 mm/mm2. Therefore, the amount of crack generation was controlled by the optimization of the neural network and genetic algorithm process.

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Effect of rare earth elements and their oxides on tribo-mechanical performance of laser claddings: A review

Cited by 139 publications

References 82 publications

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

Technical Characteristics and Wear-Resistant Mechanism of Nano Coatings: A Review

Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

Crack Sensitivity Control of Nickel-Based Laser Coating Based on Genetic Algorithm and Neural Network

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