Tribology - Materials, Surfaces & Interfaces最新文献

{"title":"Resource-efficient performance testing of metalworking fluids utilizing single-point milling","authors":"C. Taylor, Jack Secker, Syed Ashir Sajid, David Curtis, T. Liskiewicz, Thawhid Khan","doi":"10.1080/17515831.2022.2142925","DOIUrl":"https://doi.org/10.1080/17515831.2022.2142925","url":null,"abstract":"ABSTRACT Metalworking fluids have the ability to extend cutting tool life and improve the machinability of materials. There is a need for the development of reliable machining tests which can be used to screen fluids with high confidence to allow for ranking in terms of performance. This study developed a novel methodology utilizing single-point milling to evaluate fluid performance in terms of tool wear and cutting forces across various aerospace alloys. The repeatability of the procedure was assessed and demonstrated by using standard deviation. The study showed alternative cutting fluid compositions could influence tool life performance across all the aerospace material variants. Inconel 718 was shown to be the hardest material to machine followed by Titanium Ti–5Al–5Mo–5V–3Cr and Titanium Ti–6Al–4V. However, with each material, there was a differentiation in fluid performance with up to 11% difference in average tool life between different fluids. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"34 - 47"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47599581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tribological characterization of functionally gradient composite (Cu–Fe–CeO2–Al2O3–Cg) for wind turbine brake pad","authors":"Vummitti Chandhan Kumar, K. Rajesh Kannan, G. Srivathsan, A. Vignesh Ram, Vallabhaneni Sravan, R. Vaira Vignesh, M. Govindaraju","doi":"10.1080/17515831.2022.2160160","DOIUrl":"https://doi.org/10.1080/17515831.2022.2160160","url":null,"abstract":"ABSTRACT Copper-based functionally gradient composite material is developed using powder metallurgy processing technique, as a potential wind turbine brake pad material. The developed composite has a gradient composition of Cu, CeO2, Al2O3, Fe, and Cg to enable joint strength at the interface (brake calliper) and wear resistance at the contact surface (brake disc). The article presents a comprehensive analysis on the microstructure, microhardness, and tribological performance of the developed composite. The wear mechanism is deduced through surface morphology, elemental composition, and phase composition analysis using field emission scanning electron microscope, energy dispersive X-ray spectroscope, X-ray diffractometer, and X-ray photoelectron spectroscope. A maximum hardness of 198.2 HV was obtained at the contact surface. Experimental values from tribology tests show that a decreasing trend was obtained with a wear rate of 2.013 × 10−7 g N-m−1 and a friction coefficient was 0.215. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"3 - 21"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44372668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of nose radius on the chip morphology, cutting force and tool wear during dry turning of Inconel 718","authors":"A. S. Rao","doi":"10.1080/17515831.2022.2160161","DOIUrl":"https://doi.org/10.1080/17515831.2022.2160161","url":null,"abstract":"ABSTRACT The machinability studies for the Inconel 718 alloy with the coated cemented carbide cutting tool having 0.4 and 1.2 mm nose radius, varying cutting speeds (65, 81, 95 and 106 m/min) with a constant feed rate of (0.15 mm/rev) and a depth of cut (0.2 mm) were conducted. The cutting force decreases with the increase in cutting speed due to the thermal softening of the work surface at a high temperature. With the increase in nose radius a decrease in the cutting force is observed due to the increase in the cutting edge of the tool. The formation of residual stress has a profound effect on the change in the tool morphology during the machining of the alloy. Furthermore, the chip analysis in terms of chip morphology is carried out in detail. The detailed tool fracture studies are conducted and are explained for the various machining processes. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"62 - 71"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43461539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tribological properties of (Al)10(FeCoNiCu)90 high entropy alloy","authors":"Sujit Das, P. Robi, Priyanshu Kumar","doi":"10.1080/17515831.2023.2168771","DOIUrl":"https://doi.org/10.1080/17515831.2023.2168771","url":null,"abstract":"ABSTRACT The tribological properties such as ‘specific wear rate’ and ‘coefficient of friction’ (COF) of a new high entropy alloy (HEA) of (Al)10(FeCoNiCu)90 were determined by sliding against the normal loads of 30 and 40 N and compared with that of the high-speed steel (HSS) in this work. The major wear mechanism in the HEA was ploughing due to abrasion. The specific wear rate determined for the HEA at 40 N load is slightly higher (∼7%) than that at 30 N load indicating small increase in wear rate on significant increase in the load. The specific wear rate of the HEA is about five times higher than that of HSS at 30 N load. At 30 N load, after 200 m of sliding, both the wear volume rate and COF decreased continuously for the HEA on increasing the sliding distance due to the presence of sufficient amount of lubricating wear debris. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"72 - 80"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60116835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applying multi-response optimization for sustainable machining of 316 stainless steel with coconut oil-assisted minimum quantity lubrication","authors":"Rajendrakumar V. Kadi, S. Dundur, D. Goudar, J. Haider","doi":"10.1080/17515831.2023.2174333","DOIUrl":"https://doi.org/10.1080/17515831.2023.2174333","url":null,"abstract":"ABSTRACT Environmental machining was investigated using coconut oil and minimal quantity lubrication (MQL) in the turning of AISI 316 stainless steel. The turning parameters and MQL flow rate were optimized using ANOM and ANOVA in multi-response analysis to obtain the best hardness and minimum surface roughness. The feed, speed, depth of cut, and MQL flow rate were used as input parameters. It was observed that minimum surface roughness (R a: 1.12 μm and R z: 6.37 μm) at cutting speed of 120 m/min, feed rate between 0.25 and 0.3 mm/rev, the depth of cut between 1.0 and 1.5 mm and a flow rate of 90 ml/h. The high hardness of 230 μHv at machined surface and machining affected zone (MAZ) was observed to a depth of 1.075 mm. The coconut oil was shown to be an ecofriendly lubricant for machining difficult-to-cut materials like stainless steel and keeping good surface integrity. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"48 - 61"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48862261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial for the special issue on manufacturing: tribology, surface engineering and lubricants","authors":"Thawhid Khan","doi":"10.1080/17515831.2023.2193438","DOIUrl":"https://doi.org/10.1080/17515831.2023.2193438","url":null,"abstract":"Machining is one of the key manufacturing processes, focussed on precision manufacturing and final component production. Key challenges associated with machining include evolving productivity and quality requirements, combined with new and smart materials and green environment regulations imposed in the industry. Tribology is of fundamental importance, allowing an understanding of what happens at the cutting interface [1]. By understanding the fundamental interactions of the cutting tools and workpiece in terms of Tribology, Surface Engineering and Lubrication can greatly impact tool life, advanced material machining, surface finish and machining time. There is a global shift towards ‘Industry 4.0’ and ‘Smart Manufacturing’, which is reshaping methods and technologies for scalable production with the aim of improving productivity by more than 25% [2]. The contributions included in this special issue seek to demonstrate how machining and tribology research play key roles in addressing the modern challenges in manufacturing. The topics covered in this special issue is diverse: they highlight a creative scientific approach across the spectrum of manufacturing as well as demonstrate emerging technology and novel testing methodologies. The special issue begins with the manuscript ‘Braking performance of friction materials: a review of manufacturing process impact and future trends’ which is a review on the variant manufacturing techniques used to modify the tribological behaviour of brake pads. This manuscript provides a thorough review of the current manufacturing methodologies utilised and how they impact the friction behaviour of brake pads. The review also highlights future trends needed to develop green and eco-friendly brake pads to help mitigate the negative manufacturing impact on the environment and on respiratory health conditions. The review highlights the need to employ natural formulations alongside utilising the latest AI technology to monitor and optimise the manufacturing process. Metal cutting fluids are typically used to improve the machinability of materials, to improve the life and function of cutting tools and to improve the machined surface quality. Current research into testing the performance of cutting fluids are often unique in methodology, therefore there is a need for a simplified and cost-effective screening test for use by the industry. In ‘Expanding the applicability of ASTM D3233A Pin & Vee Block method to evaluate lubricant emulsions for cutting applications’ a simple Falex pin and Vee desktop Block machine was modified to allow the ranking on MWFs depending on their performance. They provide a controlled system to replicate the conditions found in larger systems, allowing for cheap testing with high repeatability. Whereas the team in the manuscript ‘Resource efficient performance testing of metalworking fluids utilising Single Point Milling’ utilises a single point milling to realistically replicate machining conditio","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"1 - 2"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47621783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expanding the applicability of ASTM D3233A Pin & Vee Block method to evaluate lubricant emulsions for cutting applications","authors":"E. Georgiou, D. Drees, K. Helmetag, T. Van der Donck, L. M. Lopes, F. Semal, M. De Bilde, M. Anderson","doi":"10.1080/17515831.2023.2179721","DOIUrl":"https://doi.org/10.1080/17515831.2023.2179721","url":null,"abstract":"ABSTRACT ASTM Method D3233A uses a Pin&Vee Block tester to evaluate cutting fluids. However, the standard defines a steel-steel contact, uses a small volume of lubricant, and the test report is limited to the ‘ultimate failure load’. With our approach, we bring testing closer to reality, using different metallurgies and testing the oils in aqueous emulsion-form. We monitor the frictional torque throughout increasing load, so that differences between products are revealed that are not visible in failure load alone. By modifying lubrication to recirculated or misted conditions, we simulate cutting of forming operations. Consequently, this provides an additional tool for cost efficient ranking of cutting fluids, based on an industry-accepted instrument. We demonstrate same ranking of cutting fluids as well established Tapping Torque Tests, with the advantage of using a simplified and lower cost configuration. Developing a standardized test protocol involves more work on reproducibility and correlation to real machining processes. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"22 - 33"},"PeriodicalIF":1.3,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45698386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tribo-behavioural transition of Ti6Al4V as a function of sliding velocity and load under dry sliding conditions","authors":"Jibin T. Philip, B. Kuriachen, Deepak Kumar, J. Mathew","doi":"10.1080/17515831.2022.2139517","DOIUrl":"https://doi.org/10.1080/17515831.2022.2139517","url":null,"abstract":"ABSTRACT In this work, the dry sliding wear characteristics of Ti6Al4V (Ti64) – EN31 (steel) tribo-pair at incremental sliding velocity (SV, 0.838–1.466 ms-1) and load (L, 50–100 N) conditions are elucidated. As evident, specific wear rate (SWR) and coefficient of friction (CoF) increases and decreases, respectively with load and SV. The wear response of Ti64 undergoes a transition from composite type (oxidative and metallic) to delamination. The evolved oxides, viz. TiO and Ti8O15 were majorly in the form of free particulates. At low SV (0.838–1.047 ms-1) and low load (50–70 N), the movable particulates can activate a separation effect limiting the damage due to wear. During severe sliding (SV = 1.257–1.466 ms-1 and L = 70–100 N), the combined influence of frictional heating instigated thermal softening, and the formation/retainment of hard-coarse particulates at the interaction zone causes perforation into the substratum, assisting in spalling. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"99 - 118"},"PeriodicalIF":1.3,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46899327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental study on tribofilm formation and endurance with nanolubricants","authors":"A. Javeed, B. John","doi":"10.1080/17515831.2022.2139519","DOIUrl":"https://doi.org/10.1080/17515831.2022.2139519","url":null,"abstract":"ABSTRACT This work investigates the formation, endurance and rupture of tribofilms on a honed engine liner subjected to boundary lubrication in a reciprocating Tribometer. Study focuses on the exploration of synergistic effect between ZDDP additive in the oil and two distinctly shaped nanoparticles, Graphene oxide (GO) and detonation nanodiamond (DND), in improving the characteristics of tribofilm. Tested samples were examined by scanning electron microscope and energy dispersive X-ray. The results indicated that the addition of nanoparticles to the base oil with ZDDP accelerates the tribofilm-formation. Although fully developed tribofilms were obtained with both the nanoadditives, the DND based tribofilm was more durable under the dry running conditions. However, P-rich tribofilm formed in the presence of GO showed self-mending characteristics. Nanoindentation studies on the wear tack revealed a 12% increase in elastic modulus and 23% increase in average hardness for the sample tested with DND compared to that of base lubricant. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"17 1","pages":"158 - 174"},"PeriodicalIF":1.3,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48252736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sliding friction and wear behaviour of ion nitrided and TiN coated AISI 4140 steel","authors":"A. Mandri, Diego Alejandro Colombo, S. Brühl, R. Dommarco","doi":"10.1080/17515831.2022.2121024","DOIUrl":"https://doi.org/10.1080/17515831.2022.2121024","url":null,"abstract":"ABSTRACT This work studies the friction and the sliding wear behaviour of surface treated SAE 4140 steel. The performance of ion nitriding and PVD TiN coatings applied by means of industrial processes as single or duplex treatments was evaluated. Although the deposited TiN coatings (0.7 µm thick) resulted thinner than most of the typically employed for sliding situations, the present work shows that they can provide very good protection. The use of ion nitriding as a pretreatment proved to be beneficial when combined with such a thin coating. However, in the pin on disc sliding tests the coated discs developed the highest friction coefficients and boosted the damage in the steel pins.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":"16 1","pages":"373 - 383"},"PeriodicalIF":1.3,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45679675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}