Friction and wear behaviors of TC4 alloy with surface microporous channels filled by Sn-Ag-Cu and Al2O3 nanoparticles

Zhou, Hongyan; Shi, Xiaoliang; Lu, Guanchen; Chen, Yuan; Yang, Zhenyu; Wu, Chaohua; Xue, Yawen; Ibrahim, Ahmed Mohamed Mahmoud

doi:10.1016/j.surfcoat.2020.125552

Cited by 42 publications

(17 citation statements)

References 32 publications

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“…Particularly, the cryogenic effect of LN 2 substantially increases workpiece hardness and decreases cutting performance. This effect is even higher than the Ra value of MQL under the same cutting parameters [156][157][158]. The heat transfer coefficient and cooling capability of oil film remarkably increase after adding nanoparticles in MQL.…”

Section: Influence Mechanism Of Cmql On Surface Qualitymentioning

confidence: 84%

Cryogenic minimum quantity lubrication machining: from mechanism to application

et al. 2021

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Cutting fluid plays a cooling-lubrication role in the cutting of metal materials. However, the substantial usage of cutting fluid in traditional flood machining seriously pollutes the environment and threatens the health of workers. Environmental machining technologies, such as dry cutting, minimum quantity lubrication (MQL), and cryogenic cooling technology, have been used as substitute for flood machining. However, the insufficient cooling capacity of MQL with normal-temperature compressed gas and the lack of lubricating performance of cryogenic cooling technology limit their industrial application. The technical bottleneck of mechanical—thermal damage of difficult-to-cut materials in aerospace and other fields can be solved by combining cryogenic medium and MQL. The latest progress of cryogenic minimum quantity lubrication (CMQL) technology is reviewed in this paper, and the key scientific issues in the research achievements of CMQL are clarified. First, the application forms and process characteristics of CMQL devices in turning, milling, and grinding are systematically summarized from traditional settings to innovative design. Second, the cooling-lubrication mechanism of CMQL and its influence mechanism on material hardness, cutting force, tool wear, and workpiece surface quality in cutting are extensively revealed. The effects of CMQL are systematically analyzed based on its mechanism and application form. Results show that the application effect of CMQL is better than that of cryogenic technology or MQL alone. Finally, the prospect, which provides basis and support for engineering application and development of CMQL technology, is introduced considering the limitations of CMQL.

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Section: Influence Mechanism Of Cmql On Surface Qualitymentioning

confidence: 84%

Cryogenic minimum quantity lubrication machining: from mechanism to application

et al. 2021

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“…In addition, a small amount of Al was detected on the surface of TC4 titanium alloy; the bond energy of Al2p in TC4 titanium alloy loaded with 80% σs was 74.3 eV, while the bond energy of Al2p in TC4 titanium alloy loaded with 103% σ s was 74.7 eV. Compared with the bond-energy data, it can be determined that the Al in TC4 titanium alloy presented in the form of A1 3+ corresponding to the Al 2 O 3 bond, indicating the presence of A1 2 O 3 phase in the obtained oxide film [33]. Compared to the loaded 80% σ s TC4 titanium alloy, the amount of Al elements oxidized in TC4 titanium alloy loaded with 80% σ s was higher, and more A1 2 O 3 was generated, which was consistent with the XRD characterization results described above.…”

Section: Polarization Curvementioning

confidence: 85%

Corrosion–Resistance Mechanism of TC4 Titanium Alloy under Different Stress-Loading Conditions

et al. 2022

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Titanium alloys have now become the first choice of tubing material used in the harsh oil- and gas-exploitation environment, while the interaction of force and medium is a serious threat to the safety and reliability of titanium alloy in service. In this paper, different stresses were applied to TC4 titanium alloy by four-point bending stress fixture, and the corrosion behavior of TC4 titanium alloy was studied by high-temperature and high-pressure simulation experiments and electrochemical techniques, and the microscopic morphologies and chemical composition of the surface film layer on the specimen were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), to reveal the corrosion-resistance mechanism of TC4 titanium alloy under different stress-loading conditions. The results showed that the pits appeared on the specimens loaded with elastic stress, but the degree of pitting corrosion was still lighter, and the surface film layer showed n-type semiconductor properties with cation selective permeability. While the pits on the specimens loaded with plastic stress were deeper and wider in size, and the semiconductor type of the surface film layer changed to p-type, it was easier for anions such as Cl− and CO32− to adsorb on, destroy, and pass through the protective film and then to contact with the matrix, resulting in a decrease in corrosion resistance of TC4 titanium alloy.

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“…The dual-phase (α + β) Ti alloy Ti6Al4V is extensively used in aerospace components, oceanographic engineering, and biomedical engineering [1,2]. However, the applications of this alloy in tribology-related engineering components are limited owing to its low hardness and wear resistance [3].…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation on Wear Properties of Composite Coatings with Varying CeO2 Contents

Zhang

Yang

et al. 2022

Coatings

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Several innovative mixed powders of Ti6Al4V and NiCr-Cr3C2 with different CeO2 contents (0, 1, 2, 3, and 4 wt.%) were designed, and Ti2C-reinforced CrTi4-based composite coatings were prepared on the Ti6Al4V surface via laser cladding technology. The effects of CeO2 amount on the forming quality, microstructure, hardness, and wear resistance of the composite coatings were studied. The results showed that the CeO2 amount had a significant influence on the forming quality of the composite coatings. The cracks were eliminated completely when the CeO2 content was 2 wt.%; furthermore, the lowest porosity was obtained with the addition of 3 wt.% CeO2. The primary phase constituents of the coatings were non-stoichiometric Ti2C and a β-type solid solution (CrTi4) as the reinforcement and matrix, respectively. CeO2 and a low quantity of Ce2O3 were re-precipitated at the Ti2C/CrTi4 interface and CrTi4 grain boundary in the coatings with CeO2 addition. In addition, the average hardness of the composite coatings was 1.28–1.34 times higher than that of the Ti6Al4V substrate. The wear resistance of the composite coatings was significantly higher than that of the substrate. However, both the composite coatings and the Ti6Al4V substrate exhibited a mixed-wear mode, i.e., abrasive and adhesive wear.

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Friction and wear behaviors of TC4 alloy with surface microporous channels filled by Sn-Ag-Cu and Al2O3 nanoparticles

Cited by 42 publications

References 32 publications

Cryogenic minimum quantity lubrication machining: from mechanism to application

Cryogenic minimum quantity lubrication machining: from mechanism to application

Corrosion–Resistance Mechanism of TC4 Titanium Alloy under Different Stress-Loading Conditions

Comparative Investigation on Wear Properties of Composite Coatings with Varying CeO2 Contents

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