Qian Zheng
China University of Petroleum
Tree (data structure)Surface roughnessThyristorPseudocapacitanceNanocrystalline materialRecrystallization (metallurgy)Composite materialPower (physics)ElectrodeEutectic systemMaterials scienceDeformation (meteorology)SuperalloyMachinabilityWork hardeningBoric acidEthylene glycolSevere plastic deformationCholine chlorideChlorideInconelPulse (physics)Deep eutectic solventSolventAbrasiveHard metalMaterial propertiesWater splittingChemical engineeringOptoelectronicsNickelMachiningUltrasonic sensorStress (mechanics)Pulsed power
5Publications
2H-index
12Citations
Publications 5
Newest
#1Fan Zhang (China University of Petroleum)H-Index: 4
#2Renjie Ji (China University of Petroleum)H-Index: 25
Last. Qian Zheng (China University of Petroleum)H-Index: 2
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#1Shenggui Liu (China University of Petroleum)
#2Renjie Ji (China University of Petroleum)H-Index: 25
Last. Baoping Cai (China University of Petroleum)H-Index: 30
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Abstract Type III deep eutectic solvents (DES) have been extensively studied as a green electrodeposition solvent due to their wide potential window and degradability. The preparation of nickel-based coatings from DES commonly uses nickel chloride as the main precursor of Ni2+, but it generates harmful chlorides during long-term electrodeposition. This article uses nickel sulfate as the main precursor of Ni2+ to investigate the effects of boric acid and water on the deposition of Ni/TiO2 composi...
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#1Renjie Ji (China University of Petroleum)H-Index: 25
#2Qian Zheng (China University of Petroleum)H-Index: 2
Last. Yonghong Liu (China University of Petroleum)H-Index: 30
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Abstract The high strength and high hard metal materials such as nickel-based superalloy have been widely used because of their excellent properties. If the gradient nanostructures are prepared on their surfaces, their properties will be further improved and their application will be expanded. In this paper, a coupled mechanical ultrasonic-electric pulse (CMUEP) treatment method is presented and its special pulse power source with high instantaneous energy density is developed. The power supply ...
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#1Renjie Ji (China University of Petroleum)H-Index: 25
#2Yang Zelin (China University of Petroleum)H-Index: 3
Last. Xiaopeng Li (China University of Petroleum)H-Index: 9
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Abstract Coupled electric pulse and ultrasonic treatment (CEPUT) is easy to cause severe plastic deformation on Inconel 718 nickel-based superalloy surface with high strength and high hardness. Moreover, the top surface grain with the average size of 25.8 nm and the nanocrystalline layer with the thickness of more than 40 μm are prepared on processed Inconel 718 surface. In CEPUT, the electric pulse can increase the material plasticity, accelerate the dislocation migration, decrease the work har...
8 CitationsSource
#1Renjie Ji (PolyU: Hong Kong Polytechnic University)H-Index: 3
#2Qian Zheng (China University of Petroleum)H-Index: 2
Last. Weihai Cheng (China University of Petroleum)H-Index: 3
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It is common that Inconel 718 is difficult to cut, which limits its application unavoidably. In this study, the mechanical-thermal coupling (MTC) treatment method is applied to improve the machinability of Inconel 718. After MTC treatment on Inconel 718 surface, the severe plastic deformation is produced easily, and the grain is refined without new substance produced. Moreover, a theoretical and computational model taking account of the electric field, thermal field, and mechanical field simulta...
3 CitationsSource