Surface Topography: Metrology and Properties最新文献_第10页

Influence of tool pin profiles on waviness and natural frequency during friction stir welding of Al-Li alloys plates 刀销轮廓对铝锂合金板搅拌摩擦焊波形和固有频率的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-16 DOI: 10.1088/2051-672X/acd5ea

Sanjeev Kumar, Ashish Soni, J. Katiyar, Sachin Kumar, B. S. Roy

{"title":"Influence of tool pin profiles on waviness and natural frequency during friction stir welding of Al-Li alloys plates","authors":"Sanjeev Kumar, Ashish Soni, J. Katiyar, Sachin Kumar, B. S. Roy","doi":"10.1088/2051-672X/acd5ea","DOIUrl":"https://doi.org/10.1088/2051-672X/acd5ea","url":null,"abstract":"The third generation of Al-Li 2050-T84 alloy was primarily used in aerospace industries due to its exceptional potential for weight saving, high strength, and increased fatigue crack growth resistance. In the present research, three different types of tool pin profiles, namely, hybrid, taper threaded, and triangular, were used to join 2050-T84 Al-Li alloy by using Friction Stir Welding (FSW) at a constant rotational speed of 23.33 rotation/second with a traverse speed of 0.003 meters per second and tilt angle of 2°. The research explored the effect of different tools on weld bead structure, waviness and natural frequency of welded plates. The experimental results show that the hybrid tool pin side generates 10.9% higher heat than the threaded taper tool and 25.8% higher than the triangular tool. Moreover, the hybrid tool produces 50.1% lower waviness of welded specimens than the threaded taper tool and 55.7% lower than the triangular tool at the nugget zone (NZ). The research established that a hybrid tool pin profile is advantageous as it generates a higher frequency and lower acceleration under the applied load in friction stir welded specimens.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"160 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79852726","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}

引用次数: 0

Stratified topography theory to understand frictional electrification for sliding triboelectric nanogenerators 用层状地形理论来理解滑动摩擦电纳米发电机的摩擦起电作用

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-16 DOI: 10.1088/2051-672X/acd5eb

Haoran Li, Tianyu Han, Huihui Hu, Xi Shi, Zhilong Peng, Songtao Hu

{"title":"Stratified topography theory to understand frictional electrification for sliding triboelectric nanogenerators","authors":"Haoran Li, Tianyu Han, Huihui Hu, Xi Shi, Zhilong Peng, Songtao Hu","doi":"10.1088/2051-672X/acd5eb","DOIUrl":"https://doi.org/10.1088/2051-672X/acd5eb","url":null,"abstract":"Researchers are used to investigating the influence of surface topography on the frictional electrification of sliding triboelectric nanogenerators TENGs from the perspective of a single-stratum topography; however, a stratified feature has shared reality in closer relationships. Here, we characterize the stratified feature of the topographies for the sliding TENGs, and link them to the electrification voltages, finding that the frictional electrification strongly depends on the characteristics of the small-scale component in a stratified topography, which suggest us to develop a stratified electrification model for mechanism reveal. Based on the dependence, we also succeed in identifying the stratified topographic characteristics with frictional electrification signals by machine learning including support vector machine and convolutional neural network, which can be envisioned as a tool for topography measurement. This is the first demonstration of a stratified topography theory for sliding TENGs, providing new insights into the mechanism reveal and functional application of frictional electrification.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"10 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86544063","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}

引用次数: 0

Wear behavior of ceramic, composite, and ceramic/composite interfaces 陶瓷、复合材料和陶瓷/复合材料界面的磨损行为

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-16 DOI: 10.1088/2051-672X/acd5e9

Elif Sevilay Yıldırım, N. Tekçe, S. Fidan, S. Tuncer, M. Demirci

{"title":"Wear behavior of ceramic, composite, and ceramic/composite interfaces","authors":"Elif Sevilay Yıldırım, N. Tekçe, S. Fidan, S. Tuncer, M. Demirci","doi":"10.1088/2051-672X/acd5e9","DOIUrl":"https://doi.org/10.1088/2051-672X/acd5e9","url":null,"abstract":"Objective. This study has aimed to evaluate the effects of toothbrushing on the wear behavior of two composites, three ceramic materials, and ceramic/composite interfaces. Material and Methods. Nanofilled (Filtek Ultimate), and nanohybrid composites (Spectra ST HV) were used for the repair of a hybrid ceramic (Vita Enamic), resin nanoceramic (Katana Avencia), and zirconia block (Katana Zirconia). Composites, ceramics, and ceramic/composite interfaces were examined before and after a period of one-month and one-year of toothbrush abrasion testing using non-contact optical profilometry and scanning electron microscopy (SEM). Data were analyzed by two-way ANOVA and Bonferroni correction. The statistical significance level was set at p < 0.05. Results. No difference was found between the surface roughness of the Vita Enamic, Katana Avencia, Filtek Ultimate, and Spectra surfaces after one month and one year of toothbrushing. Sa values in Katana Zirconia material were found to be significantly lower than those in the control group after one year of brushing. The surface roughness of the repair interfaces formed by repairing hybrid ceramic and resin nanoceramic CAD/CAM materials with nanofilled and nanohybrid composite materials was found to be similar after different brushing times. Conclusion. Vita Enamic, Katana Avencia, Filtek Ultimate, and Spectra materials can be preferred in clinical repair applications, since they exhibit similar wear behavior after brushing at different times. For the zirconia material, the repair interface had similar surface roughness as the ceramic and composite surfaces after one year of brushing. Periodic recalls and re-polishing may thus be necessary when these products are used clinically.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"26 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75287412","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}

引用次数: 0

Study of the surface roughness and optimization of machining parameters during laser-assisted fast tool servo machining of glass-ceramic 激光辅助快速伺服刀具加工玻璃陶瓷表面粗糙度及加工参数优化研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-16 DOI: 10.1088/2051-672X/acd5ec

Mingxu Fan, Xiaoping Zhou, Shunfa Chen, Shan Jiang, Jinzhou Song

{"title":"Study of the surface roughness and optimization of machining parameters during laser-assisted fast tool servo machining of glass-ceramic","authors":"Mingxu Fan, Xiaoping Zhou, Shunfa Chen, Shan Jiang, Jinzhou Song","doi":"10.1088/2051-672X/acd5ec","DOIUrl":"https://doi.org/10.1088/2051-672X/acd5ec","url":null,"abstract":"Glass-ceramic is a typical hard and brittle material that is difficult to machine. In order to improve the surface quality of laser-assisted fast tool servo machining optical free-form surface of glass-ceramic, the effects of spindle speed, feed speed, piezoelectric frequency and laser power on the surface roughness were investigated. Firstly, the Taguchi method (TM) was used to establish the orthogonal experiment, and the contribution rate of each machining parameter to the surface roughness was obtained through variance and signal-to-noise ratio (S/N) analysis. The order of the influence degree of each parameter on the surface roughness is as follows: laser power > spindle speed > feed speed > piezoelectric frequency. The optimal machining parameter combinations obtained for the TM experiment are as follows: spindle speed 50 rpm, feed speed 0.01 mm rev−1, piezoelectric frequency 8 Hz, laser power 75 W. The range of surface roughness reduction obtained by comparing laser-assisted machining (LAM) with pure fast tool servo (FTS) machining is 38.75%∼58.77%. The Box-Behnken Design (BBD) in response surface methodology (RSM) was used to design experiments and a regression model for surface roughness was established through RSM. The deviation between the surface roughness predicted by the regression equation and the experimental value is less than ±6%. The influence law of various machining parameters on surface roughness was studied through three-dimensional response surface. RSM optimized the minimum surface roughness with a desirability of 99.43%. The optimal combination of machining parameters optimized through RSM is as follows: spindle speed 53.71 rpm, feed speed 0.02 mm rev−1, piezoelectric frequency 6.73 Hz, laser power 72 W. This paper is the first to combine LAM with FTS for machining optical free-form surface of glass-ceramic. This study provides a reference for laser-assisted fast tool servo machining and the research methods of surface quality.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"2 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83034607","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}

引用次数: 1

Effect of special-shaped texture on tribological properties of PTFE-based friction material/CuSn6 friction pair 异形织构对ptfe基摩擦材料/CuSn6摩擦副摩擦学性能的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-15 DOI: 10.1088/2051-672X/acd56b

Zeng Shuaishuai

引用次数: 0

Effects of argon plasma pretreatment of Si wafers on Si-Si bonding based on Mo/Au interlayers 硅晶片氩等离子体预处理对Mo/Au夹层Si-Si键合的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-15 DOI: 10.1088/2051-672X/acd569

Y. Qu, H. Bai, Wenbo Hu, Yuan Yuan, Shengli Wu, Hong Wang, H. Fan

{"title":"Effects of argon plasma pretreatment of Si wafers on Si-Si bonding based on Mo/Au interlayers","authors":"Y. Qu, H. Bai, Wenbo Hu, Yuan Yuan, Shengli Wu, Hong Wang, H. Fan","doi":"10.1088/2051-672X/acd569","DOIUrl":"https://doi.org/10.1088/2051-672X/acd569","url":null,"abstract":"To improve the bonding quality of Si-Si wafers bonded based on Mo/Au intermediate layers at room temperature, the surfaces of Si wafers were pretreated with argon plasma, and the effect of argon plasma pretreatment on Si-Si wafer bonding was analyzed by combining experimental and theoretical methods. Owing to the plasma treatment of Si wafers, the surface roughness of Si wafers was significantly reduced, and the bonded Si-Si samples had lower interfacial voidage. The average bonding strength of 11.46 MPa for the argon plasma pretreated Si-Si bonded samples is much higher than the bonding strength of 4.23 MPa for the unpretreated Si-Si bonded samples. The analysis of the fractured surface revealed that the fracture of the Si-Si bonded samples without argon plasma treatment occurred mainly at the Mo/Si interface, while the fracture of the plasma-treated Si-Si bonded samples arose mainly within the bulk Si. Molecular dynamics (MD) simulations suggest that strong atomic diffusion takes place at the Mo/Au interface, while Mo atoms hardly diffuse into the bulk Si. These results indicate that argon plasma pretreatment not only cleans and activates the Si wafer surface but also makes the Si wafer surface smooth, which helps to enhance the deposited Mo/Au film quality and the adhesion between the Mo film and the Si wafer.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"13 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74113044","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}

引用次数: 0

The investigation of wear properties of nanoparticle-reinforced epoxy composite material surfaces 纳米颗粒增强环氧复合材料表面磨损性能的研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-12 DOI: 10.1088/2051-672X/acd4d4

Serkan Apay, M. Kılınçel

{"title":"The investigation of wear properties of nanoparticle-reinforced epoxy composite material surfaces","authors":"Serkan Apay, M. Kılınçel","doi":"10.1088/2051-672X/acd4d4","DOIUrl":"https://doi.org/10.1088/2051-672X/acd4d4","url":null,"abstract":"This study added nano-sized Al2O3, Boron, and TiO2 powders to the epoxy polymer at 0.5% and 1% ratios. Abrasive wear resistance properties of nanoparticle-reinforced epoxy polymers were investigated. First cylindrical specimens with and without additives were prepared for realizing the experimental research. Pin-on discs were used for the wear test of epoxy samples. The mass losses were measured via a precision scale. According to the results, the boron nanoparticles have increased the epoxy specimens’ resistance. As a result of the experimental studies, it was observed that the wear resistance of the epoxy composite increased with each nano-sized powder added to the epoxy. SEM and optical profilometry investigated the composites’ friction coefficient and surface morphology. As a result of friction coefficient and wear weight loss tests, the highest wear resistance was obtained in 1% boron powder nano-reinforced epoxy composites. It was observed that the epoxy friction coefficient was in the range of 0.4–0.6, which decreased to the range of 0.2–0.4 with the addition of nano boron. The surface roughness value after epoxy wear was measured as 1.4 μm. With the addition of nano boron, this value was measured as 0.32 μm. Optical profilometry and SEM imaging results also support these values.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"86 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81308000","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}

引用次数: 0

Improvement of lubrication performance of sliding pairs with multi-depth groove textures based on genetic algorithm 基于遗传算法的多深度沟槽织构滑动副润滑性能改进

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-11 DOI: 10.1088/2051-672X/acd46a

Shaojun Li, Zhenpeng Wu, B. Dong, Wenyan Luo, Hailong Song, Haotian Guo, And Qiqi Zhou

{"title":"Improvement of lubrication performance of sliding pairs with multi-depth groove textures based on genetic algorithm","authors":"Shaojun Li, Zhenpeng Wu, B. Dong, Wenyan Luo, Hailong Song, Haotian Guo, And Qiqi Zhou","doi":"10.1088/2051-672X/acd46a","DOIUrl":"https://doi.org/10.1088/2051-672X/acd46a","url":null,"abstract":"During the wear and tear process of bearings, the friction coefficient between the friction pairs can be effectively decreased by employing the suitable surface texture on the frition surface. In the study, the distribution and depth variation of the surface texture were used as variables, and the genetic algorithm was used for iterative optimization to obtain the optimal texture distribution and depth. The friction and wear performance of the rectangular texture bearing sliding blocks was optimized. The depth of the texture was represented by a 4-bit binary number, and different binary numbers were set to represent different texture depths. Finally, the genetic algorithm was used for continuous iteration and evolution to obtain the optimal texture combination. The study showed that, compared with the regular texture with a depth of 0.2 μm, the friction coefficient decreased by 15.0% under the optimal texture with a non-uniform depth. Simultaneously, compared with the regular 3 μm deep texture, texture with a optimized depth makes the friction coefficient decreased by 37.5%, and the minimum oil film thickness increased by 0.979 μm. The optimal texture and oil film thickness combination obtained from the study can effectively reduce solid contact force and alleviate mechanical wear.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"11 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79404350","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}

引用次数: 1

Statistically representative estimators of multi-scale surface topography: example of aluminum blasted rough samples 多尺度表面形貌的统计代表性估计:以铝喷砂毛坯为例

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-11 DOI: 10.1088/2051-672X/acd469

C. Turbil, J. Cabrero, I. Simonsen, D. Vandembroucq, I. Gozhyk

{"title":"Statistically representative estimators of multi-scale surface topography: example of aluminum blasted rough samples","authors":"C. Turbil, J. Cabrero, I. Simonsen, D. Vandembroucq, I. Gozhyk","doi":"10.1088/2051-672X/acd469","DOIUrl":"https://doi.org/10.1088/2051-672X/acd469","url":null,"abstract":"The topography of a rough surface determines many of its physical properties, for instance, tribology, contact mechanics, optical properties etc. Nowadays, a deep understanding of such physical phenomena requires the knowledge of the topography at appropriate length scales. Apart from performing multi-scale measurements of the surface topography, it also requires the use of proper statistical estimators for the analysis of such topography maps. Moreover, when dealing with light scattering in the visible spectral range, the scale at which the estimators of local topography properties are defined is extremely important. Here we present a multi-scale and statistical study of the surface topography of blasted aluminum samples which all have rather different visual appearance. Various statistical estimators of surface topography are examined, including estimators related to the height distribution, the lateral correlation and local topology. The combination of these various estimators unveils a scale separation between a micro-scale roughness inherited from the initial cold-rolled aluminum surface and a large scale roughness fully controlled by the blasting process. A special emphasis is given to the crucial importance of length scales in the estimation of local slopes. The present analysis establishes a quantitative link between the statistical properties of the surface topography and the blasting process used to fabricate the samples.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"7 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927304","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}

引用次数: 1

Effect of rare–earth (Ce, La) compounds on the microstructure, mechanical and electrochemical corrosion characteristics of electroplated Ni films 稀土(Ce, La)化合物对电镀镍膜微观结构、力学和电化学腐蚀特性的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2023-05-05 DOI: 10.1088/2051-672X/acd2f0

Haixiang Chen, Kun Wang, Zhanshan Wang

{"title":"Effect of rare–earth (Ce, La) compounds on the microstructure, mechanical and electrochemical corrosion characteristics of electroplated Ni films","authors":"Haixiang Chen, Kun Wang, Zhanshan Wang","doi":"10.1088/2051-672X/acd2f0","DOIUrl":"https://doi.org/10.1088/2051-672X/acd2f0","url":null,"abstract":"For optimizing the microstructure and performance of Ni–electroplating film, the soluble rare–Earth (RE) compounds CeCl3 or LaCl3 were introduced, which were electrodeposited on Cu substrate by direct current (DC) and pulse current (PC) methods, respectively. The surface characteristics of morphology, composition, and phase of obtained different deposits were investigated, and the relationship between the structure and the performance of internal stress, hardness, and electrochemical responses was discussed. The results show that both RE compounds were conducive to eliminating the surface pits by inhibiting the hydrogen evolution reaction, while did not co–deposit into the Ni film. Moreover, the preferred orientation of Ni (111) crystalline plane was altered into Ni (200) by LaCl3, and its combination with PC–electrodeposition further had a better grain refinement effect than CeCl3. Due to the formation of a relatively dense and fine deposit, the PC–electrodeposited Ni/LaCl3 film exhibited the highest hardness of 320 HV, lowest tensile stress of 55 MPa, and best electrochemical passivation protection, which effectively improved the comprehensive performance of Ni film and demonstrated a good prospect for industrial applications.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"49 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82682766","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}

引用次数: 0