Lubricants最新文献_第2页

Tribological Performance of a Plasma Electrolytic Oxidation-Coated Mg Alloy in Graphene-Incorporated Ethanol 等离子电解氧化涂层镁合金在石墨烯包裹的乙醇中的摩擦学性能

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-28 DOI: 10.3390/lubricants12010009

S. Bhowmick, F. Muhaffel, Shayan Shirzadian, Hüseyin Çimenoğlu, A. Alpas

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Tribological Application of Nanocomposite Additives in Industrial Oils 纳米复合添加剂在工业油中的摩擦学应用

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-24 DOI: 10.3390/lubricants12010006

Milan Bukvić, S. Gajević, A. Skulić, Slobodan Savić, A. Ašonja, Blaža Stojanović

{"title":"Tribological Application of Nanocomposite Additives in Industrial Oils","authors":"Milan Bukvić, S. Gajević, A. Skulić, Slobodan Savić, A. Ašonja, Blaža Stojanović","doi":"10.3390/lubricants12010006","DOIUrl":"https://doi.org/10.3390/lubricants12010006","url":null,"abstract":"The demand for an improvement in the tribological properties of lubricants used in various industrial plants, the automotive industry, and other power transmissions has resulted in the development of a whole family of improved lubricants based on nanotechnology. Especially important are nanotube additives, which significantly improve the tribological properties of lubricants, primarily by reducing the friction coefficient and wear of the coupled elements but also by reducing the temperature load and increasing the stability of the oil film between the lubricated surfaces. The properties of nanotube-based additives were further improved using elements such as metal oxides and compounds based on titanium, molybdenum, aluminum, etc. This paper presents the results obtained in the field of research and application of nanocomposite lubricant additives. It also gives a partial comparative analysis of the research conducted in this field. The primary goal of this paper is to analyze the research results in the field of the application of nanotubes in lubricants and to indicate the importance of their application, such as improving the tribological properties of machines and reducing power losses. Furthermore, this paper shows the negative impact of nanoparticles on the environment and human health and the costs of applying some types of nanoparticles.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"1989 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139160500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Nb Addition on the Corrosion and Wear Resistance of Laser Clad AlCr2FeCoNi High-Entropy Alloy Coatings 添加铌对激光熔覆 AlCr2FeCoNi 高熵合金涂层耐腐蚀性和耐磨损性的影响

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-24 DOI: 10.3390/lubricants12010005

Xiulin Ji, Kunpeng Guan, Y. Bao, Zhongfa Mao, Fengtao Wang, Houfu Dai

{"title":"Effect of Nb Addition on the Corrosion and Wear Resistance of Laser Clad AlCr2FeCoNi High-Entropy Alloy Coatings","authors":"Xiulin Ji, Kunpeng Guan, Y. Bao, Zhongfa Mao, Fengtao Wang, Houfu Dai","doi":"10.3390/lubricants12010005","DOIUrl":"https://doi.org/10.3390/lubricants12010005","url":null,"abstract":"Laser clad AlCr2FeCoNiNbx (x = 0, 0.5, 1.0, 1.5, 2.0, with x values in molar ratio) high-entropy alloy (HEA) coatings were fabricated on Q345 carbon steel. This study delves into the impact of Nb incorporation on the reciprocating sliding wear resistance of these laser clad coatings against a Φ6 mm silicon nitride ball. The microstructure of the as-clad AlCr2FeCoNiNbx coatings transformed from a single Face-Centered Cubic (FCC) solid solution (when x = 0) to the hypoeutectic state (when x = 0.5) and progressed to the hypereutectic state (when x ≥ 1.0). This evolution was marked by an increase in the Laves phase and a decrease in FCC. Consequently, the HEA coatings exhibited a gradually increasing Vickers hardness, reaching a peak at HV 820. Despite a decline in corrosion resistance, there was a notable enhancement in wear resistance, and the friction of the HEA coating could be reduced by Nb addition. The phase evolution induced by Nb addition led to a shift in the predominant wear mechanism from delamination wear to abrasive wear. The wear rate of Nb0.5 was impressively low, at 6.2 × 10−6 mm N−1 m−1 when reciprocating sliding under 20 N in air. In comparison to Nb0, Nb0.5 showcased 3.6, 7.2, and 6.5 times higher wear resistance at 5 N, 10 N, and 20 N, respectively. Under all applied loads, Nb1.5 has the lowest wear rate among all HEA coatings. This substantiates that the subtle introduction of Laves phase-forming elements to modulate hardness and oxidation ability proves to be an effective strategy for improving the wear resistance of HEA coatings.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"599 2","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139160639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Composite Bionic Micro-Texture on Cutting Performance of Tools 复合仿生微观纹理对刀具切削性能的影响

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-22 DOI: 10.3390/lubricants12010004

Tiantian Xu, Chun-Yang Ma, Hu Shi, Kai Xiao, Jinpeng Liu, Qinghua Li

{"title":"Effect of Composite Bionic Micro-Texture on Cutting Performance of Tools","authors":"Tiantian Xu, Chun-Yang Ma, Hu Shi, Kai Xiao, Jinpeng Liu, Qinghua Li","doi":"10.3390/lubricants12010004","DOIUrl":"https://doi.org/10.3390/lubricants12010004","url":null,"abstract":"Dry cutting is an effective method to realize the concept of green cutting today. However, in the process of cutting bearing steel, the high temperatures and high pressures produced by the cutting tool and chip under dry friction seriously affect the machining performance of the tool. Therefore, a bionic microstructure tool based on bionics is proposed to improve the cutting performance and reduce friction by changing the size parameters of the microstructure. On the basis of finite element simulation and cutting tests, the cutting force, surface roughness, and chip shape are used to evaluate the cutting performance. It is found that composite bionic micro-textured tools have a significantly reduced cutting force compared with non-micro-textured tools; composite bionic micro-textured tools lead to a reduction in surface roughness of 10–25%; and composite bionic micro-textured tools are more prone to enhancing the curling and breaking of chips. In addition, with the increase in the microstructure area occupancy, the cutting performance of the tool was also significantly improved. Moreover, it was found that the cutting performance of the tool was improved when the area occupancy of the micro-texture on the front face of the tool was increased.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"10 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138943894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Antioxidant Properties and Molecular Design of Lubricant Antioxidants Based on QSPR Model 基于 QSPR 模型的抗氧化剂性能评估和润滑油抗氧化剂的分子设计

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-22 DOI: 10.3390/lubricants12010003

Jianfang Liu, Yaoyun Zhang, Chenglingzi Yi, Rongrong Zhang, Sicheng Yang, Ting Liu, Dan Jia, Qing Yang, Shuai Peng

{"title":"Evaluation of Antioxidant Properties and Molecular Design of Lubricant Antioxidants Based on QSPR Model","authors":"Jianfang Liu, Yaoyun Zhang, Chenglingzi Yi, Rongrong Zhang, Sicheng Yang, Ting Liu, Dan Jia, Qing Yang, Shuai Peng","doi":"10.3390/lubricants12010003","DOIUrl":"https://doi.org/10.3390/lubricants12010003","url":null,"abstract":"Two quantitative structure–property relationship (QSPR) models of hindered phenolic antioxidants in lubricating oils were established to help guide the molecular structure design of antioxidants. Firstly, stepwise regression (SWR) was used to filter out essential molecular descriptors without autocorrelation, including electronic, topological, spatial, and structural descriptors, and multiple linear regression (MLR) was used to construct QSPR models based on the screened variables. The two models are statistically sound, with R2 values of 0.942 and 0.941, respectively. The models’ reliability was verified by the frontier molecular orbital energy gaps of the antioxidants. A hindered phenolic additive was designed based on the models. Its antioxidant property is calculated to be 20.9% and 11.0% higher than that of typical commercial antioxidants methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and 2,2′-methylenebis(6-tert-butyl-4-methylphenol), respectively. The structure–property relationship of hindered phenolic antioxidants in lubricating oil obtained by computer-assisted analysis can not only predict the antioxidant properties of existing hindered phenolic additives but also provide theoretical basis and data support for the design or modification of lubricating oil additives with higher antioxidant properties.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"14 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138947640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Estimation of Road Wetness from a Passenger Car 估算乘用车的路面湿度

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-20 DOI: 10.3390/lubricants12010002

Wiyao Edjeou, Ebrahim Riahi, Manuela Gennesseaux, V. Cerezo, Minh-Tan Do

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The Influence of Load and Speed on the Initial Breakdown of Rolling Bearings Exposed to Electrical Currents 载荷和速度对暴露于电流中的滚动轴承初始破坏的影响

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-19 DOI: 10.3390/lubricants12010001

S. Puchtler, Robert Maier, Martin Kuhn, Yves Burkhardt

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Reconstruction and Intelligent Evaluation of Three-Dimensional Texture of Stone Matrix Asphalt-13 Pavement for Skid Resistance 石子基质沥青-13 路面抗滑性三维纹理重构与智能评估

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-18 DOI: 10.3390/lubricants11120535

Gang Dai, Zhiwei Luo, Mingkai Chen, You Zhan, Changfa Ai

{"title":"Reconstruction and Intelligent Evaluation of Three-Dimensional Texture of Stone Matrix Asphalt-13 Pavement for Skid Resistance","authors":"Gang Dai, Zhiwei Luo, Mingkai Chen, You Zhan, Changfa Ai","doi":"10.3390/lubricants11120535","DOIUrl":"https://doi.org/10.3390/lubricants11120535","url":null,"abstract":"To examine the three-dimensional texture structure of SMA-13 asphalt pavement and assess its anti-skid performance, a light gradient-boosting machine evaluation model was developed using non-contact three-dimensional laser-scanning technology. The study focused on collecting three-dimensional texture data from newly laid SMA-13 asphalt pavement. Subsequently, wavelet transform was employed to reconstruct the pavement’s three-dimensional texture, and discrete Fourier transform was utilized to separate macro- and microtextures, enabling the calculation of their characteristics. The macro- and micro-characteristics of the three-dimensional texture and friction coefficient were input into the model. A comparative analysis with linear regression and a random forest model revealed superior accuracy and efficiency in the model. The training set R2 is 0.948, and the testing set R2 is 0.842, effectively enabling the evaluation of pavement anti-skid performance. An analysis of parameter importance indicated that Rku and MPD are still effective indicators for evaluating skid resistance. Furthermore, diverse texture indexes exhibited varying effects on the anti-skid performance. The established asphalt pavement anti-skid evaluation model serves as a theoretical foundation for understanding the actual influence on pavement anti-skid performance.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"25 3","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual Network Co-Crosslinked HNBR Composites with Enhanced Tribological Properties under Water Lubrication 在水润滑条件下具有更佳摩擦学特性的双网共交联丁腈橡胶复合材料

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-18 DOI: 10.3390/lubricants11120534

Hao Yu, Wuxuan Zheng, Caixia Zhang, Shoubing Chen, Guangke Tian, Tingmei Wang

{"title":"Dual Network Co-Crosslinked HNBR Composites with Enhanced Tribological Properties under Water Lubrication","authors":"Hao Yu, Wuxuan Zheng, Caixia Zhang, Shoubing Chen, Guangke Tian, Tingmei Wang","doi":"10.3390/lubricants11120534","DOIUrl":"https://doi.org/10.3390/lubricants11120534","url":null,"abstract":"Water-lubricated bearings play a critical role in underwater propulsion systems but are often prone to failure due to mechanical wear and vibration, especially under high loads and prolonged friction. In response to this issue, our study introduces a novel approach: a dual network co-crosslinking strategy utilizing hydrogenated nitrile butadiene rubber (HNBR). This strategy connects the rubber network with the epoxy network through epoxidized Eucommia ulmoides gum. A comprehensive analysis was conducted to assess the resulting composite’s damping, tribological, and mechanical properties. The results show that the material has excellent mechanical, damping, and tribological properties relative to pure HNBR, with a 65.9% increase in the damping temperature domain, a 78.5% increase in tensile strength, a low coefficient of friction of 0.022, and a high resistance to abrasion of 3.87 × 10−6 mm3/Nm. The successful synthesis of HNBR-based composites via the dual network co-crosslinking strategy underscores their potential as a practical solution for improving the reliability and prolonging the service life of water-lubricated bearings.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":" 47","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation 含微孔和纳米孔的阳极氧化铝表面在润滑往复运动中的摩擦学协同作用

IF 3.5 3区工程技术

Lubricants Pub Date : 2023-12-15 DOI: 10.3390/lubricants11120533

Minhaeng Cho

{"title":"Tribological Synergism of Anodic Aluminum Oxide Surface Containing Micro-Holes and Nanopores under Lubricated Reciprocation","authors":"Minhaeng Cho","doi":"10.3390/lubricants11120533","DOIUrl":"https://doi.org/10.3390/lubricants11120533","url":null,"abstract":"Micro-drilled aluminum surfaces containing micro-holes were anodized to produce nanopores over the machined and lapped surfaces. The anodized nanopores had an approximate diameter of 30–40 nm and a depth distribution of 20–30 μm from the surface. The diameter and depth of the machined micro-holes were 125 μm and 300 μm, respectively. Anodization itself did not change the surface roughness because the nanopores were very small. Ball-on-disk reciprocating tests were performed under lubricated conditions for 2 h using a frequency of 2 Hz, a load of 2 N, and a travel distance of 5 mm. The results showed that both the micro-drilled and anodized surfaces greatly reduced the coefficient of friction compared with the lapped bare surface; however, the coefficient of friction of the hole-textured specimen was not maintained till the end. Contrary to expectations, the lubricant retention capability of the textured structure declined because of hole failure that occurred during oscillation. This gradually increased friction until the end of the reciprocating test. When the micro-drilled surface was anodized, the coefficient of friction decreased again, implying that non-anodized micro-holes alone were ineffective for reducing friction. The surface hardness of Al increased owing to anodization, and thus the micro-holes remained intact. Therefore, it is concluded in this study that a prerequisite for friction reduction in Al is to increase the hardness to minimize the failure of micro-holes, which can be achieved by anodization. The synergistic lubricant retention capability can be maintained by the presence of both nanopores and micro-holes.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":"14 22","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138970666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0