WearPub Date : 2024-11-28DOI: 10.1016/j.wear.2024.205678
Yuxuan Xu , Peiyu Zhou , Qi Chen , Ziyi Liu , Xing Wang , Minwen Deng , Haibin Zhou , Yong Han , Pingping Yao
{"title":"Quantitative evolution of tribo-layers in copper based friction materials for high-speed trains operating at 400 km/h equivalent energy density: Ratio of formation to damage","authors":"Yuxuan Xu , Peiyu Zhou , Qi Chen , Ziyi Liu , Xing Wang , Minwen Deng , Haibin Zhou , Yong Han , Pingping Yao","doi":"10.1016/j.wear.2024.205678","DOIUrl":"10.1016/j.wear.2024.205678","url":null,"abstract":"<div><div>The quantitative Evolution of the braking properties and tribo-layer of copper based friction materials (CBFM) at 400 km/h equivalent energy density was investigated. The braking properties of CBFM were determined, with two significant degradations at the 1st and 12th cycles. The ratio of formation to damage of the tribo-layer, <em>t</em>, based on the thickness of the sub-surface of CBFM and wear debris, was defined. The variation of <em>t</em> showed an excellent correlation with the decline in the coefficient of friction. The mechanically mixed layer (MML) deteriorates after the first cycle, evolving into a mixed MML-PDL (plastic deformation layer) structure. The deformed substrate gradually loses hard particles, resulting in a tribo-layer predominantly composed of severely deformed copper, with minimal iron content and numerous defects.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205678"},"PeriodicalIF":5.3,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-26DOI: 10.1016/j.wear.2024.205637
Michał Gdula , Jerzy Józwik , Agnieszka Skoczylas
{"title":"Tool wear and surface topography shaping after TPl multi-axis milling of Ni-based superalloy of the torus milling cutter using the strategy of adaptive change of the active cutting edge segment","authors":"Michał Gdula , Jerzy Józwik , Agnieszka Skoczylas","doi":"10.1016/j.wear.2024.205637","DOIUrl":"10.1016/j.wear.2024.205637","url":null,"abstract":"<div><div>This paper details an investigation of the process of multi-axis high-speed milling of the surface of Ni-based superalloy Inconel 718 parts used the torus milling cutter. Presents the issues and development of the own models of the multi-axis milling in a kinematic variant of the TPl (Tool Pulling) type in terms of tool wear. Because the cutting speed in finishing high-speed milling is the parameter with the greatest influence on tool life and surface roughness, the dependence of the variation of the cutting speed at the torus part of the cutter was first determined as a function of the distance from the tip point along the axial direction and the geometrical parameters of the torus. A model for multi-axis milling of the TPl type was developed and described in a simplified manner, which forms the basis of an own ACACES strategy for segmenting the cutting edge of a torus milling cutter. The adaptation of a given segment to the active cutting edge during machining was based on tool wear and kinematic roughness criteria. Simulations and experiments of multi-axis milling were carried out, and the necessary analyses were performed. In this paper, in addition to testing an in-house strategy for multi-axis milling used the torus milling cutter, the problem of defining the cutting speed in relation to the nominal diameter and effective diameter of the tool is investigated for the first time. In addition, wear measurement was carried out using an in-house methodology, taking full advantage of the capabilities of the multi-axis machining centre, which significantly reduced measurement time and positively influenced the effectiveness of tool life assessment. Using the own ACACES strategy of the multi-axis surface milling of parts made of Ni-based superalloys, an almost fourfold increase in torus cutter life was achieved compared to the conventional strategy, while maintaining the required machined surface roughness parameters.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205637"},"PeriodicalIF":5.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-26DOI: 10.1016/j.wear.2024.205669
Yufeng Guo, Yufei Gao, Chunfeng Yang
{"title":"Sawing force modeling and analysis for diamond wire sawing PV monocrystalline silicon considering abrasive wear","authors":"Yufeng Guo, Yufei Gao, Chunfeng Yang","doi":"10.1016/j.wear.2024.205669","DOIUrl":"10.1016/j.wear.2024.205669","url":null,"abstract":"<div><div>In the process of diamond wire sawing, the sawing force is produced by wire bow formed by the diamond wire. The wear of the diamond wire during sawing will decrease its ability of removing materials, thereby increasing the wire bow and the sawing force, affecting the quality of the as-sawn wafers and even increasing the risk of wire breakage. Therefore, in order to reduce the risk of wire breakage, it is of great significance to establish a sawing force model considering wear and realize the theoretical prediction and analysis of sawing force. In this paper, different forms of abrasives on the surface of the diamond wire are characterized, and the change of wear rate in sawing is analyzed. Combined with the material removal process, a sawing force model considering wear of the abrasives was founded, and the accuracy of the model was verified by sawing experiments. The sawing force of the wire web under multi-wire processing parameters in the industrial production of photovoltaic monocrystalline silicon wafers was analyzed using the established model. With the increase of wire speed from 1500 m/min to 2700 m/min, the peak value of wire web sawing force gradually decreases from 7.12N/m to 4.47 N/m. With the increase of feeding speed from 1.7 mm/min to 2.9 mm/min, the peak value of wire web sawing force gradually increases from 4.3 N/m to 6.55 N/m. The research results provide guiding significance for diamond wire sawing production.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205669"},"PeriodicalIF":5.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-26DOI: 10.1016/j.wear.2024.205672
Zhentong Fan , Chaohui Wang , Zhibin Wang , Yanwei Li , Lei Feng , Songyuan Tan
{"title":"Fog seal with polymer composite modified emulsified asphalt: Road performance and environmental adaptability","authors":"Zhentong Fan , Chaohui Wang , Zhibin Wang , Yanwei Li , Lei Feng , Songyuan Tan","doi":"10.1016/j.wear.2024.205672","DOIUrl":"10.1016/j.wear.2024.205672","url":null,"abstract":"<div><div>Three types of fog seals with polymer modified-emulsified asphalt were prepared to improve the durability of the fog seal and the maintenance quality of asphalt. Based on the skid resistance, water seepage, and wet wheel abrasion, the spraying scheme of the fog seal was determined. The variation of surface drying time under different temperatures and humidity was clarified. The road performance evolution law of fog seal under composite conditions and long-term abrasion was revealed, respectively. The results show that the optimal spraying amount of modified emulsified asphalt for three types of fog seals was 0.6 kg/m<sup>2</sup>. The optimal dosage of fine sand for fog seals with waterborne epoxy/polyurethane modified-emulsified asphalt (WER-WPU-JFC-EA) and waterborne epoxy/polyurethane/styrene-butadiene rubber-modified emulsified asphalt (WER-WPU-SBR-EA) was 0.6 kg/m<sup>2</sup> and 0.4 kg/m<sup>2</sup>, respectively. Under average temperature and humidity, the traffic open time of the fog seal was 1.0–1.5 h. After the long-term action of thermal-oxygen/freeze-thaw and climate/freeze-thaw, the bonding strength of WER-WPU-JFC-EA and WER-WPU-SBR-EA fog seal was still greater than 0.34 MPa. After 50,000 times of wear, the mass loss of WER-WPU-JFC-EA and WER-WPU-SBR-EA fog seal was below 5.2 %, maintaining good skid resistance and waterproof performance.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205672"},"PeriodicalIF":5.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-23DOI: 10.1016/j.wear.2024.205670
Magdalena Łępicka
{"title":"Coating failure detection in scratch testing: A cross-sectional SEM/FIB microscopic study coupled with nonlinear analysis methods in a model titanium nitride/stainless steel system","authors":"Magdalena Łępicka","doi":"10.1016/j.wear.2024.205670","DOIUrl":"10.1016/j.wear.2024.205670","url":null,"abstract":"<div><div>In modern scratch testing, efforts are made to improve the quality of quantitative measurement of the coating adhesion. This paper proposes a new method for analyzing data collected in scratch tests. The nonlinear analysis methods of both penetration depth and tangential force time series were combined with SEM/FIB cross-sectional studies to monitor the progression of coating failure in a model titanium nitride coated stainless steel system. The applicability of recurrence quantification analysis and diagonal cross-recurrence analysis in scratch testing were discussed.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205670"},"PeriodicalIF":5.3,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-22DOI: 10.1016/j.wear.2024.205666
Sabah Aftimi , Younes Kerroum , Hassane Idrissi , Rachid Boulif , Nawal Semlal , Maha Elhawary , Abdelkbir Bellaouchou , Anton José Garcia , Hatem M.A. Amin , Maria Boudalia
{"title":"Acoustic emission for real-time monitoring of interfacial erosion-corrosion of austenitic stainless steel in polluted phosphoric acid environment","authors":"Sabah Aftimi , Younes Kerroum , Hassane Idrissi , Rachid Boulif , Nawal Semlal , Maha Elhawary , Abdelkbir Bellaouchou , Anton José Garcia , Hatem M.A. Amin , Maria Boudalia","doi":"10.1016/j.wear.2024.205666","DOIUrl":"10.1016/j.wear.2024.205666","url":null,"abstract":"<div><div>Erosion-corrosion is a complex problem causing severe damage of austenitic stainless-steel equipment used in phosphoric acid production. Herein, time-resolved analyses of the acoustic emission (AE) signal together with the corrosion potential and weight loss were performed to online monitor and evaluate the dynamic degradation and depassivation of the 904L stainless steel under the effect of abrasive SiC particles. Important insights into the erosion-corrosion process are gained from the analysis of the AE waveform and its parameters. The characteristic root mean square (RMS) voltage and acoustic energy of AE signals revealed the self-healing difficulty of the passive film, of which the waveform of AE signals showed the appearance of imperfect continuous high intensity waveform, ranging from 0.1 to 0.4 mV. Evaluation of the average frequency spectrum showed that the amount of SiC particles alters the damage mechanism from AE events dominated by ploughing to AE events driven by micro-cutting. This suggests that the imperfect continuous waveform is possibly a precursor to the emergence of new acoustic sources (burst type): sudden jumps of chips from the cutting lips. This response resulted in a quasi-linearity in the mass loss of the alloy with the respective acoustic response at high particle loading (24 g L<sup>−1</sup>). The non-linear erosion-corrosion behavior suggests that the depassivation-repassivation events are dependent. These results render the combined AE and electrochemical analysis an effective sustainable approach for the online investigation of the synchronously changing erosion and corrosion rates.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205666"},"PeriodicalIF":5.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-21DOI: 10.1016/j.wear.2024.205668
Shuai Wang , Yebing Tian , Xintao Hu , Jinling Wang , Jinguo Han , Yanhou Liu , Jiarong Wang , Daoyan Wang
{"title":"Identification of grinding wheel wear states using AE monitoring and HHT-RF method","authors":"Shuai Wang , Yebing Tian , Xintao Hu , Jinling Wang , Jinguo Han , Yanhou Liu , Jiarong Wang , Daoyan Wang","doi":"10.1016/j.wear.2024.205668","DOIUrl":"10.1016/j.wear.2024.205668","url":null,"abstract":"<div><div>The grinding wheel wear is inevitably accelerated for difficult-to-machine materials due to their high hardness and wear resistance properties. However, it is difficult to precisely estimate the wheel states and implement appropriate dressing strategies during the actual grinding process. Previous methods to identify the grinding wheel wear status online suffer from inadequate accuracy and weak real-time performance. In this work, a novel identification approach of grinding wheel wear states was proposed using the Hilbert-Huang transformation (HHT) of acoustic emission (AE) signal and the random forest (RF) algorithm. The AE signal was decomposed into the sum of multiple inherent mode functions (IMFs) via the empirical mode decomposition (EMD) method. The IMFs with a stronger correlation with the original AE signal were selected by the correlation coefficient. The Hilbert transformation was performed to obtain its marginal spectrum. The maximum, root mean square, and spectral centroid of each IMF were calculated as feature values. The mapping model between grinding wheel status and feature values was built using the RF method. The optimum model parameters were studied to obtain the accurate identification results. The grinding experiment results of the bearing steel showed that the comprehensive accuracy reached 93.3 %. The effective monitoring scheme could be provided for more precision grinding practices.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205668"},"PeriodicalIF":5.3,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-20DOI: 10.1016/j.wear.2024.205618
Aaron Baillieu, Eldar Rahimov, Matthew Marshall
{"title":"The role of thermal properties in the wear mechanisms of an AlSi-polyester abradable","authors":"Aaron Baillieu, Eldar Rahimov, Matthew Marshall","doi":"10.1016/j.wear.2024.205618","DOIUrl":"10.1016/j.wear.2024.205618","url":null,"abstract":"<div><div>During run-in and operation, the blades of a gas turbine engine may rub against the engine casing. To allow for these blade rubs an abradable coating is applied to the casing. However, the coating does not always cut smoothly, potentially wearing the blade. This paper focuses on the wear mechanics which occur with Metco 601, an AlSi-Polyester abradable which has been shown to produce a combination of blade wear and adhesion.</div><div>In this study, by testing AlSi-Polyester of different hardnesses at various incursion rates and blade speeds, it has been shown that there is a statistically significant difference in the wear behaviour observed at 0.02μm/pass compared with those observed between 0.2 and 2 μm/pass. Simultaneous recording of the blade front, thermal hotspots on the blade and abradable, and force measurements have been used to relate observed wear mechanics to the thermal behaviour of the abradable. Results showed that at incursion rates above 0.2μm/pass high force application rates lead to localised hotspots on the abradable and sporadic adhesion events. At 0.02μm/pass the force application rate, and hence thermal energy flux into the abradable, is more gradual, allowing heat to spread across the abradable surface. The more uniform abradable temperature leads to large areas of simultaneous wear, demonstrating how the abradables ability to manage the thermal energy can have a significant impact on its wear performance. This has been further verified through the observation of a reduction in abradable temperature as the test progresses which aligns with a reduction in the thermal resistance through the abradable and also an observed transition from adhesion to blade wear.</div><div>This work has shown that the management of thermal energy within AlSi-Polyester has a significant impact on the observed wear mechanisms, improving the understanding of why the wear mechanics vary with incursion rate.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205618"},"PeriodicalIF":5.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-20DOI: 10.1016/j.wear.2024.205665
Cheng Zheng , Yulei Yang , Shuo Cheng , Wei Wang , Kun Liu , Jimin Xu
{"title":"Friction reduction and anti-wear mechanisms of surface-textured graphite under water lubrication","authors":"Cheng Zheng , Yulei Yang , Shuo Cheng , Wei Wang , Kun Liu , Jimin Xu","doi":"10.1016/j.wear.2024.205665","DOIUrl":"10.1016/j.wear.2024.205665","url":null,"abstract":"<div><div>In this study, tribological behaviors of surface-textured graphite samples under water lubrication are analyzed by experiments and molecular dynamics simulations to reveal the underlying friction and anti-wear mechanism. Circular dimple-type textures are chosen for investigations. Ball-on-disc frictional tests are performed to investigate the influence of texture spacing on friction coefficient and wear degree. The sample with a texture spacing of 200 μm possesses the lowest friction coefficients and the smallest cross-sectional area of the wear mark. The roles of support strength of solid part among textures, water wettability and water film in determining the water-lubricated tribological behaviors are analyzed in detail. The water molecules trapped by the dimple-type textures can produce additional hydrostatic pressure, which is the most crucial factor. The results of this study can guide the design of water-lubricated graphite components with surface textures, such as mechanical seals and graphite bearings in nuclear main pumps and ships.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205665"},"PeriodicalIF":5.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WearPub Date : 2024-11-19DOI: 10.1016/j.wear.2024.205656
Sukanta Sarkar , Bidipta Dam , Ujjal Dey , Nilrudra Mandal , C.S. Kumar , Indranil Manna , Siddhartha Roy
{"title":"Effect of dispersion technique and applied load on the dry sliding wear behavior of combined stir-squeeze-cast AA6061–0.5 wt % CNT composite against a steel counter body at both room temperature and elevated temperature","authors":"Sukanta Sarkar , Bidipta Dam , Ujjal Dey , Nilrudra Mandal , C.S. Kumar , Indranil Manna , Siddhartha Roy","doi":"10.1016/j.wear.2024.205656","DOIUrl":"10.1016/j.wear.2024.205656","url":null,"abstract":"<div><div>Wear behavior of three different AA6061-0.5 wt% CNT composites fabricated using different dispersion techniques by stir-squeeze-casting have been studied against a steel ball counter body. The uniform CNT distribution in composites fabricated by dropping pellets of Al-powder and CNT (PD composite) yields the lowest coefficient of friction (COF) and specific wear rate (SWR) for both the composite material and the counter body. Both COF and SWR increase as the load increases from 5 N to 10 N, but drop as the load increases further to 15 N. Even at 150 °C, the presence of CNTs improved the tribological performance of AA6061. A detailed study of CNT morphologies on the worn surface and Raman spectroscopy indicate their beneficial role as a solid lubricant to reduce COF and material loss during wear.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"562 ","pages":"Article 205656"},"PeriodicalIF":5.3,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}