Surface Topography: Metrology and Properties最新文献

{"title":"Effects of ionic liquid and MoDTC additives on the anti-wear performance of soot-containing lubricants for tribopair interface","authors":"Junjing Fan, Yan Shen, Hui Qiang, Qihang Cui, Baihong Yu, Jiujun Xu, Tongshan Zhang","doi":"10.1088/2051-672x/ae2e1d","DOIUrl":"https://doi.org/10.1088/2051-672x/ae2e1d","url":null,"abstract":"Abstract Soot generated from incomplete combustion is a key factor causing efficiency loss and interfacial failure in engine lubrication systems. To address the tribological issues induced, this study systematically investigated the enhancement effects and mechanisms of aminoguanidine-based ionic liquid (AO-IL), molybdenum dithiocarbamate (MoDTC), and their composite formulations on the anti-scuffing capability of a tribopair under soot conditions. Reciprocating friction and wear tests demonstrated that adding appropriate amounts of AO-IL and MoDTC simultaneously can increase anti-scuffing time by up to 145.5%. AO-IL can occupy active sites on worn surfaces. It can improve the weak areas of the MoDTC/zinc dialkyldithiophosphate (ZDDP) tribofilm. This effectively prevents micro-asperity contact and reduces abrasive wear in tribopair interfaces, showing the regulatory role of AO-IL in tribological behavior.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 4","pages":"045022-045022"},"PeriodicalIF":0.0,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic mechanism of graphene and ZIF-8 composite additive in grease","authors":"Ling Pan, Weijin Zhou, Kaikui Zheng, Aihua Chen, Zhanming Song","doi":"10.1088/2051-672x/ae23eb","DOIUrl":"https://doi.org/10.1088/2051-672x/ae23eb","url":null,"abstract":"Abstract Grease lubrication with compound additives can resolve the challenges of precision retention in mechanical transmissions operating under heavy loads and spatial constraints. The compound additives generate a synergistic effect, enhancing the friction-reducing performance of the grease. This study investigates the frictional properties of greases containing varying mass fractions of graphene (Gra) and zeolitic imidazolate framework-8 (ZIF-8) via experimental testing and molecular dynamics (MD) simulations. The influence of additive composition and concentration on the lubricating performance of grease is analyzed through tribological experiments. MD models of lubricating grease with different nano-additives are established to explore the boundary lubrication mechanism of composite additives. It is found that lamellar Gra and spherical ZIF-8 particles can improve the frictional behavior of lithium-based grease. The performance of the lubricating grease is optimal when the mass fraction of the additive is 2.0 wt%. The average coefficient of friction for the base grease is 0.130. The coefficient of friction decreased to 0.100, 0.100, and 0.088 with the addition of 2.0 wt% Gra, ZIF-8, and Gra/ZIF-8 composite additive, respectively. Correspondingly, the wear rates are reduced by 34.8%, 39.8%, and 46.3% compared to the original grease. The Gra/ZIF-8 composite additive system demonstrates the best overall performance, with experimental and simulation results showing good agreement. MD simulations revealed that the flexible spherical structure of ZIF-8 within the composite additive can undergo significant deformation under contact stress, adapting to surface irregularities, increasing the effective contact area, and performing functions such as rolling, load-bearing, and filling. Additionally, ZIF-8 mitigates the curling deformation of Gra under external forces, forming a stable protective tribofilm on the friction surfaces. The synergistic interaction between Gra and ZIF-8 significantly enhances the load-carrying capacity of the lubricating film, reduces the friction coefficient, and minimizes wear.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 4","pages":"045015-045015"},"PeriodicalIF":0.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lubrication and friction behavior of piezoelectric materials under interface adsorption effect","authors":"Yanfei Fang, Y.T. Li, Xianrong Li, Tingping Lei, Tianliang Lin","doi":"10.1088/2051-672x/adbfaf","DOIUrl":"https://doi.org/10.1088/2051-672x/adbfaf","url":null,"abstract":"Abstract This study investigated the interfacial lubrication and friction behavior of piezoelectric materials. Two types of water-based lubrication solutions containing anionic and cationic surfactants were used in friction experiments with varying rotational speeds and loads. This study revealed that lubricant molecules adsorb onto the electrode solid–liquid interface, resulting in distinct friction behaviors. The piezoelectric positive electrode adsorbs anions, while the negative electrode surface adsorbs cations, forming a thicker adsorption film that reduces friction compared to a non-piezoelectric interface. Furthermore, the study reveals that the coupling of mechanical force, electrical effects, and surface adsorption influences lubrication performance. This study provides a method for enhancing lubrication performance in smart materials, with significant engineering applications.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 1","pages":"015036-015036"},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topography, antisoiling and anticorrosion behavior of the superamphiphobic composite coating on 5083 aluminum alloy based on microarc oxidation","authors":"Zhanhua Yang, Kecheng Lu, Chenggang Hao, Zebing Xu, Rui Zeng, Renhuan Luo, Zhaojin Ran, Yiting Wang, Zhiwu Chen, Ran Mo, Zhongmin Wang","doi":"10.1088/2051-672x/adb1fb","DOIUrl":"https://doi.org/10.1088/2051-672x/adb1fb","url":null,"abstract":"Abstract The inadequate corrosion resistance of aluminum alloys significantly limits their widespread application, thereby necessitating research on enhancing their resistance to corrosion and contamination. Superamphiphobic coatings present a promising solution to mitigate this issue. In this study, spraying technology was employed in conjunction with MAO to create a superamphiphobic composite coating with exceptional corrosion resistance on the surface of 5083 aluminum alloy. The morphology, superamphiphobic characteristics, and corrosion resistance of the material were comprehensively assessed. The corrosion current density of the optimal superamphiphobic composite coating obtained via MAO followed by spraying with modified TiO 2 nanoparticles ( I corr = 9.23 × 10 −13 A·cm −2 ) was six and three orders of magnitude lower than that of 5083 aluminum alloy and the unmodified MAO coating, respectively. Furthermore, the coating exhibited a large capacitive arc diameter, enhanced charge-transfer resistance, and high |Z| value at a low frequency (0.01 Hz), signifying its excellent corrosion resistance. Additionally, the coating exhibited superamphiphobic properties with high contact angle (>150°) and low sliding angle (<10°), promoting nonwetting behavior toward various liquids with different surface tensions. This behavior can be attributed to the micro-nanostructure, which significantly enhances surface hydrophobicity and oleophobicity. Moreover, the coating demonstrated dynamic self-cleaning and antisoiling capabilities. These attributes underscored the ability of the coating to exhibit super-repellency, antisoiling performance, ultralow surface energy, and interfacial adhesion forces. Finally, the superamphiphobic composite coating demonstrated noteworthy thermal and chemical stabilities—as evaluated through heat, acid, and alkali resistance tests—thereby affirming its practical viability.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 1","pages":"015024-015024"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147907998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MoS₂ micro/nano structure: preparation and tribological properties as additives in biodegradable polymer and ester oil","authors":"Kun Wang, Yong Xu, Hua Zhong, Enzhu Hu, Kunhong Hu","doi":"10.1088/2051-672x/ada171","DOIUrl":"https://doi.org/10.1088/2051-672x/ada171","url":null,"abstract":"Abstract The needs of modern industry for high-performance lubricants remain difficult to meet. Therefore, finding ways to improve their lubrication performance is crucial. A novel composite consisting of two different structures of the same compound was synthesized for improving tribological properties. Flake-like micron MoS 2 (M-MoS 2 ) with a size of approximately 10 μm was activated via oxidation, ultrasonication, and grinding. The desired MoS 2 micro/nano structure (MN-MoS 2 ) was prepared through the chemical deposition of hollow spherical nano-MoS 2 with a diameter of approximately 75 nm on the activated M-MoS 2 . MN-MoS 2 combined the advantages of the micron and nano structures and possessed excellent tribological properties in both a solid lubricating system of polylactic acid (PLA) and a liquid lubricating system of diisooctyl sebacate (DIOS). In PLA, the addition of 0.1% MN-MoS 2 reduced the wear rate by 59.7%, but slightly increased the coefficient of friction (COF) by 3.1%. When the addition amount was increased to 0.5% in PLA, MN-MoS 2 can decrease the COF by 11.75%. In DIOS, the addition of 0.5% MN-MoS 2 reduced the wear rate by 58.9% and the COF by 37.2%. The lubrication mechanisms of the MN-MoS 2 -modified PLA were the formation of a MoS 2 /PLA transfer layer on the counterpart surface and the improvement in the thermal stability and hardness of PLA. However, the lubrication mechanism of the MN-MoS 2 -modified DIOS was mainly the formation of a stable friction film containing MoS 2 on the friction surface. These findings provide a way to improve the performance of lubricant additives and demonstrate potential application value.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 1","pages":"015002-015002"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The microhardness, morphology and tribological property of TC4 subjected to machine hammer peening","authors":"Xuewen Zhang, Hongrui Jing, Ying Yang, Zexin Zhong, Xiang Li and Yu Liu","doi":"10.1088/2051-672x/ad71e3","DOIUrl":"https://doi.org/10.1088/2051-672x/ad71e3","url":null,"abstract":"Ti alloy has become an indispensable material in harsh working environments due to its excellent wear resistance, corrosion resistance and impact resistance. These environments place stringent requirements on the fatigue life, friction and wear, and surface strength of materials. Therefore, this study aims to deeply explore the surface mechanical properties of Ti-6Al-4V (TC4) alloy after machine hammer peening (MHP) treatment. By conducting experiments on TC4 alloys treated with different hammering energies, the changes in surface hardness, morphology, roughness, tensile properties, and friction properties were analyzed, and the strengthening mechanism of MHP was discussed. Experimental results show that MHP treatment can effectively improve the surface properties of TC4. With the increase of hammer energy, due to the double-sided hammering of the plate, the microhardness first increases, then decreases, and then rises again. The tensile strength and yield strength of the sample increase slightly, but the elongation at break decreases. The surface roughness of the sample increases first and then decreases. Similarly, after MHP treatment, the wear resistance of the samples increased, the friction coefficient decreased, and the wear amount and surface height difference showed a trend of first increasing and then decreasing. The wear mechanism mainly included adhesive wear, abrasive wear and fatigue wear.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"24 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolution of tooth surface morphology and tribological properties of helical gears during mixed lubrication sliding wear","authors":"Jiang Zhao, Chenbo Ma, Zhengminqing Li, Xiaofeng Yu and Wei Sheng","doi":"10.1088/2051-672x/ad76c3","DOIUrl":"https://doi.org/10.1088/2051-672x/ad76c3","url":null,"abstract":"In mixed lubrication, the interplay of lubricant flows, solid asperity contact, and material wear between tooth surfaces creates complex and unpredictable contact states on tooth surface. To comprehensively understand the interaction between the lubrication and wear characteristics of the rough tooth surfaces of helical gears, this study established a mixed lubrication sliding wear calculation model for helical gears based on the mixed elastohydrodynamic lubrication model and Archard’s model. Specifically, the study aimed to examine the effects of surface topography features on average film thickness, contact area ratio, and accumulated wear at the meshing point. The findings demonstrated that the texture and power spectral density distributions of a non-Gaussian reconstructed surface closely resembled those of the actual ground surface. Furthermore, for non-Gaussian rough surfaces, a larger wavelength ratio enhanced microwedge motion, which increased film thickness and reduced wear. Additionally, a negatively skewed surface demonstrated better lubrication performance compared to both positively skewed and Gaussian surfaces. This improved performance is evident in the smaller contact area ratio and lower accumulated wear value of the negatively skewed surface.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"78 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of co-relation on LPBF process parameter on wear characteristics of Cu-Cr-Zr alloy","authors":"M Saravana Kumar, N Jeyaprakash and Che-Hua Yang","doi":"10.1088/2051-672x/ad76c2","DOIUrl":"https://doi.org/10.1088/2051-672x/ad76c2","url":null,"abstract":"Copper alloy bearings, gears, and fasteners have a significant impact on industrial sectors. However, due to the defect formation and void generation during the manufacturing of copper alloy parts using (Laser Powder Bed Fusion) LPBF technique, the wear resistance of the copper alloy was significantly affected. Hence, the prime novelty of the current research is enhancing wear resistance by analyzing the interaction of combined LPBF parameters. In order to decrease cavity forms and reduce the wear rate of the printed Cu alloy components, the important LPBF process parameters such as Scan Velocity (SV) of 550, 750, and 950 mm s−1, Laser Power (LP) of 460, 540, and 620 W, and Re-melting Range (RR) of 5, 25, and 45% were selected and studied. The results of the experimental investigation were supported by the use of Grey Relation Analysis (GRA). A comparative study was conducted with five distinct parameter combinations to investigate the relative influence of each parameter on the relative density, wear rate and elastic modulus. The research findings verify that the application of optimal SV of 750 mm s−1 and RR of 45% with maximum LP of 460 W resulted in the maximum relative density of 99.91%, minimal wear rate of 0.52 × 10−5 mm3/Nm, and maximum elastic modulus of 140.22 GPa.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"2012 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface profile inspection for large structures with laser scanning","authors":"Ke Ding, Chunlin Wu, Miao Luo, Zhilong Su, Hu Ding, Yimin Ye and Dongsheng Zhang","doi":"10.1088/2051-672x/ad7523","DOIUrl":"https://doi.org/10.1088/2051-672x/ad7523","url":null,"abstract":"Fringe projection profilometry is a powerful tool that is widely applied to shape measurement of objects in engineering. Limited by the light intensity of the projection unit, this technique is difficult to be applied to surface inspection of large structures, especially in outdoor applications. In this study, a line laser source is selected as the light projection unit. The line laser beam is controlled to scan the surface with the predefined angular speed while a stationary imaging unit captures images. An image fusion strategy has been proposed to construct grating images with a constant phase shift, which facilitates full-field phase shifting in determination of the structural profile. The accuracy of the measurement method is discussed and compared with a commercial 3D laser scanner. The proposed technique has also been applied to the surface topography of the wind turbine blades. The experimental results show that the bulging defects on the surface of the wind turbine blade model are detectable, which shows the feasibility of the proposed method in characterization of surface profile on large structures.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"14 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical softgauges for material ratio parameters","authors":"François Blateyron and Stéphane Breton","doi":"10.1088/2051-672x/ad6f2e","DOIUrl":"https://doi.org/10.1088/2051-672x/ad6f2e","url":null,"abstract":"Editors of surface texture analysis software need to validate their parameter calculations, ideally in an implementation-independent way. Today, there is no universal reference method for validating parameter compliance and more specifically with regard to material ratio parameters, Rk parameters, and volume parameters that are based on the Abbott curve. Several years ago, at Digital Surf, we developed parameter validation methods that are based on mathematics. A mathematical softgauge, defined by an equation, is injected through the mathematical parameter definition, to obtain a mathematical true value of the parameter value. In a parallel path, a discrete softgauge, derived from the mathematical softgauge, is injected through an algorithm and the resulting value is compared to the approximated true value. This method makes it possible to check the accuracy of an algorithm for calculating a particular parameter. For this study, two families of mathematical softgauges were specifically designed to test material ratio parameters. More precisely, the two main goals of this study are, (1) to advocate an algorithm validation approach that is independent from any software implementation, and (2) to obtain true values for all parameters based on the Abbott curve.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"35 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}