Pub Date : 2024-11-14DOI: 10.1016/j.triboint.2024.110397
Zuhong Gan , Bingkun Ning , Yamei Mao , Yongnan Chen , Lei Li , Nan Wang , Lixia Zhu , Guangrui Gao , Ke Hua
The WO3/TiO2 composite coatings with varying amorphous content were fabricated in electrolytes with varying addition of tungsten source, and their tribological properties were tested from 25 ℃ to 600 ℃. The results indicated the composite coatings showed better mechanical and tribological properties at room temperature and exhibited superior wear resistance at high temperatures especially for 400 ℃. The enhanced high-temperature wear resistance was attributed to the formation of nanocrystals and the establishment of amorphous-crystal heterointerface, which effectively impedes dislocation movement and makes them accumulate dispersed along the interface because of the small size of nanocrystals. This work offers a theoretical foundation for enhancing the wear properties of the coatings under high-temperature conditions through the construction of an amorphous-crystal structure.
{"title":"Enhancing high-temperature wear resistance by constructing the amorphous-crystal heterointerface structure in WO3/TiO2 composite coatings","authors":"Zuhong Gan , Bingkun Ning , Yamei Mao , Yongnan Chen , Lei Li , Nan Wang , Lixia Zhu , Guangrui Gao , Ke Hua","doi":"10.1016/j.triboint.2024.110397","DOIUrl":"10.1016/j.triboint.2024.110397","url":null,"abstract":"<div><div>The WO<sub>3</sub>/TiO<sub>2</sub> composite coatings with varying amorphous content were fabricated in electrolytes with varying addition of tungsten source, and their tribological properties were tested from 25 ℃ to 600 ℃. The results indicated the composite coatings showed better mechanical and tribological properties at room temperature and exhibited superior wear resistance at high temperatures especially for 400 ℃. The enhanced high-temperature wear resistance was attributed to the formation of nanocrystals and the establishment of amorphous-crystal heterointerface, which effectively impedes dislocation movement and makes them accumulate dispersed along the interface because of the small size of nanocrystals. This work offers a theoretical foundation for enhancing the wear properties of the coatings under high-temperature conditions through the construction of an amorphous-crystal structure.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110397"},"PeriodicalIF":6.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660688","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}
Pub Date : 2024-11-13DOI: 10.1016/j.triboint.2024.110393
Xingtao Cheng , Kaijun Wei , Hongjie Li , Na Teng , Shijun Xu , Quangang Chen , Xianmin Gong , Yi He , Siming Yan
At the present time, the subject of seawater scouring and corrosion phenomena is attracting considerable attention. Accordingly, the present study involved the synthesis of CuPP materials and the preparation of Ni-Cu/CuPP coatings for deployment in marine environments characterised by elevated stress and corrosion. The results show that CuPP can effectively enhance the wear resistance and long-term corrosion resistance of Ni-Cu coatings, which is attributed to ‘fine grain strengthening’ and ‘diffusion strengthening’. Furthermore, the formation of a friction transfer film and the transformation of the wear mechanism are the primary factors contributing to the exceptional wear resistance of the Ni-Cu/CuPP composite coatings.
{"title":"A Ni-Cu/CuPP composite coating with good wear resistance and long-term corrosion resistance for seawater applications","authors":"Xingtao Cheng , Kaijun Wei , Hongjie Li , Na Teng , Shijun Xu , Quangang Chen , Xianmin Gong , Yi He , Siming Yan","doi":"10.1016/j.triboint.2024.110393","DOIUrl":"10.1016/j.triboint.2024.110393","url":null,"abstract":"<div><div>At the present time, the subject of seawater scouring and corrosion phenomena is attracting considerable attention. Accordingly, the present study involved the synthesis of CuPP materials and the preparation of Ni-Cu/CuPP coatings for deployment in marine environments characterised by elevated stress and corrosion. The results show that CuPP can effectively enhance the wear resistance and long-term corrosion resistance of Ni-Cu coatings, which is attributed to ‘fine grain strengthening’ and ‘diffusion strengthening’. Furthermore, the formation of a friction transfer film and the transformation of the wear mechanism are the primary factors contributing to the exceptional wear resistance of the Ni-Cu/CuPP composite coatings.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110393"},"PeriodicalIF":6.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660416","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}
Pub Date : 2024-11-13DOI: 10.1016/j.triboint.2024.110391
Rong Wang , Yanhui Zhang , Ran Liu , Shuyong Duan , Jia Wang , Chengjiao Yu
The gear box of wind turbine is subjected to the complex environment such as random wind load for a long time, and the gear contact fatigue becomes a key factor limiting the stability and reliability of wind turbine equipment. Therefore, the research on the gear contact damage evolution mechanism is faced with difficulties such as complex stress states, damage anisotropy and failure modeling. However, traditional fracture mechanics and damage mechanics are limited in predicting the failure load of complex defects and evaluating the structural integrity. Material configurational force theory can describe the effect of defect configurational change on the free energy of materials and be used to predict the damage and failure behavior of materials. In this paper, a wind turbine gear contact damage model is constructed based on this theory. The gear contact interface stress field simulation analysis is carried out for the key bearing area of gear contact, and the gear contact damage evolution process under contact load is simulated. For the problem of gear failure caused by metal oxide inclusion, the damage evolution model based on Jk parameters is established. The damage evolution process of gear containing inclusions under contact loading is simulated numerically, and the influence of depth, shape and location of inclusions on the damage evolution behavior is analyzed. The research results have shown that the configurational force theory damage model can effectively simulate the contact damage phenomenon of gear and explain the pitting and spalling of gear surfaces. It has theoretical significance to predict contact fatigue life of gear accurately.
风电机组齿轮箱长期承受随机风载荷等复杂环境，齿轮接触疲劳成为制约风电机组设备稳定性和可靠性的关键因素。因此，齿轮接触损伤演化机理的研究面临着复杂应力状态、损伤各向异性和失效建模等难题。然而，传统的断裂力学和损伤力学在预测复杂缺陷的破坏载荷和评估结构完整性方面存在局限性。材料构型力理论可以描述缺陷构型变化对材料自由能的影响，并用于预测材料的损伤和失效行为。本文基于该理论构建了风力涡轮机齿轮接触损伤模型。针对齿轮接触的关键承载区域进行了齿轮接触界面应力场模拟分析，模拟了接触载荷作用下齿轮接触损伤的演变过程。针对金属氧化物夹杂导致的齿轮失效问题，建立了基于 Jk 参数的损伤演化模型。对含有夹杂物的齿轮在接触载荷下的损伤演化过程进行了数值模拟，分析了夹杂物的深度、形状和位置对损伤演化行为的影响。研究结果表明，构力理论损伤模型能有效模拟齿轮的接触损伤现象，解释齿轮表面的点蚀和剥落。这对准确预测齿轮的接触疲劳寿命具有重要的理论意义。
{"title":"Effect of inclusion on contact damage evolution of wind turbine gears based on configurational force theory","authors":"Rong Wang , Yanhui Zhang , Ran Liu , Shuyong Duan , Jia Wang , Chengjiao Yu","doi":"10.1016/j.triboint.2024.110391","DOIUrl":"10.1016/j.triboint.2024.110391","url":null,"abstract":"<div><div>The gear box of wind turbine is subjected to the complex environment such as random wind load for a long time, and the gear contact fatigue becomes a key factor limiting the stability and reliability of wind turbine equipment. Therefore, the research on the gear contact damage evolution mechanism is faced with difficulties such as complex stress states, damage anisotropy and failure modeling. However, traditional fracture mechanics and damage mechanics are limited in predicting the failure load of complex defects and evaluating the structural integrity. Material configurational force theory can describe the effect of defect configurational change on the free energy of materials and be used to predict the damage and failure behavior of materials. In this paper, a wind turbine gear contact damage model is constructed based on this theory. The gear contact interface stress field simulation analysis is carried out for the key bearing area of gear contact, and the gear contact damage evolution process under contact load is simulated. For the problem of gear failure caused by metal oxide inclusion, the damage evolution model based on <em>J</em><sub><em>k</em></sub> parameters is established. The damage evolution process of gear containing inclusions under contact loading is simulated numerically, and the influence of depth, shape and location of inclusions on the damage evolution behavior is analyzed. The research results have shown that the configurational force theory damage model can effectively simulate the contact damage phenomenon of gear and explain the pitting and spalling of gear surfaces. It has theoretical significance to predict contact fatigue life of gear accurately.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110391"},"PeriodicalIF":6.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660689","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}
Pub Date : 2024-11-13DOI: 10.1016/j.triboint.2024.110394
Tomasz Bartkowiak , Katarzyna Peta , Jolanta B. Królczyk , Piotr Niesłony , Marta Bogdan-Chudy , Łukasz Przeszłowski , Anna Trych-Wildner , Natalia Wojciechowska , Grzegorz M. Królczyk , Michał Wieczorowski
The functional features of 3D printing surfaces can be controlled by changing the parameters of additive processes. This study investigates the correlations between built-up angle, surface fractal complexity, and wettability in additively manufactured surfaces using Fused Deposition Modeling (FDM), Selective Laser Sintering (SLS), and Multi Jet Printing (MJT). Surface topography was measured using four optical techniques: focus variation, confocal microscopy, confocal fusion, and interferometry, across multiple scales. The study explored linear, logarithmic, and exponential regression models to identify the best correlations and scale of interactions between the built-up angle, surface complexity, and contact angle. It was found that the built-up angle significantly influences surface fractal complexity, with strong correlations (R² > 0.85) observed particularly at a scale of around 1100 µm². Confocal fusion offered the best reproducibility of measurements, especially at finer scales (< 100 µm²). Surface complexity was also found to correlate strongly with wettability, especially at scales around 1000 µm² and under 10 µm², where exponential regression models performed slightly better, particularly for MJT surfaces. Topographic measurement modes are reproducible with slightly better correlation indices for confocal fusion, between built-up angle and surface complexity. The best correlation of built-up angle, surface complexity and contact angle parameters was obtained for linear regression. The results suggest that surface wettability can be controlled by adjusting the built-up angle, with FDM and SLS surfaces transitioning from hydrophobic to hydrophilic as the angle increases beyond 70 degree, while MJT surfaces remained hydrophobic even at higher angles. The built-up angle parameter allows modeling wettability in the range of 80–120°. The study also indicates the superiority of multiscale parameters over conventional topographic characterization methods in describing additively manufactured surfaces.
{"title":"Wetting properties of polymer additively manufactured surfaces – Multiscale and multi-technique study into the surface-measurement-function interactions","authors":"Tomasz Bartkowiak , Katarzyna Peta , Jolanta B. Królczyk , Piotr Niesłony , Marta Bogdan-Chudy , Łukasz Przeszłowski , Anna Trych-Wildner , Natalia Wojciechowska , Grzegorz M. Królczyk , Michał Wieczorowski","doi":"10.1016/j.triboint.2024.110394","DOIUrl":"10.1016/j.triboint.2024.110394","url":null,"abstract":"<div><div>The functional features of 3D printing surfaces can be controlled by changing the parameters of additive processes. This study investigates the correlations between built-up angle, surface fractal complexity, and wettability in additively manufactured surfaces using Fused Deposition Modeling (FDM), Selective Laser Sintering (SLS), and Multi Jet Printing (MJT). Surface topography was measured using four optical techniques: focus variation, confocal microscopy, confocal fusion, and interferometry, across multiple scales. The study explored linear, logarithmic, and exponential regression models to identify the best correlations and scale of interactions between the built-up angle, surface complexity, and contact angle. It was found that the built-up angle significantly influences surface fractal complexity, with strong correlations (R² > 0.85) observed particularly at a scale of around 1100 µm². Confocal fusion offered the best reproducibility of measurements, especially at finer scales (< 100 µm²). Surface complexity was also found to correlate strongly with wettability, especially at scales around 1000 µm² and under 10 µm², where exponential regression models performed slightly better, particularly for MJT surfaces. Topographic measurement modes are reproducible with slightly better correlation indices for confocal fusion, between built-up angle and surface complexity. The best correlation of built-up angle, surface complexity and contact angle parameters was obtained for linear regression. The results suggest that surface wettability can be controlled by adjusting the built-up angle, with FDM and SLS surfaces transitioning from hydrophobic to hydrophilic as the angle increases beyond 70 degree, while MJT surfaces remained hydrophobic even at higher angles. The built-up angle parameter allows modeling wettability in the range of 80–120°. The study also indicates the superiority of multiscale parameters over conventional topographic characterization methods in describing additively manufactured surfaces.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110394"},"PeriodicalIF":6.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660687","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}
Pub Date : 2024-11-13DOI: 10.1016/j.triboint.2024.110390
Dongqing He , Xiangxiang Pan , Feng Mao , Lunlin Shang
Developing a carbonaceous transfer film on the counterpart surface leads to a C/C strong adhesive interface, which dominates the friction behavior of hydrogen-free carbon-based films in low-humidity environments, ultimately resulting in high friction. This research illustrated that WC/a-C films can accomplish low friction under low humidity conditions, a performance not attainable for hydrogen-free carbon-based films. To clarify the low friction mechanisms, a comparative investigation was conducted on the frictional characteristics of a-C, WC/a-C:H, and WC/a-C films. Contrary to two prevalent lubrication hypotheses of ‘friction-induced graphitization’ and ‘passivation’ mechanisms in carbon-based films, the establishment of an intrinsic weakly adhesive C/WO3 sliding interface was identified as a critical factor contributing to the low friction of WC/a-C films.
{"title":"Probing the low friction mechanisms of WC/a-C films under low humidity conditions","authors":"Dongqing He , Xiangxiang Pan , Feng Mao , Lunlin Shang","doi":"10.1016/j.triboint.2024.110390","DOIUrl":"10.1016/j.triboint.2024.110390","url":null,"abstract":"<div><div>Developing a carbonaceous transfer film on the counterpart surface leads to a C/C strong adhesive interface, which dominates the friction behavior of hydrogen-free carbon-based films in low-humidity environments, ultimately resulting in high friction. This research illustrated that WC/a-C films can accomplish low friction under low humidity conditions, a performance not attainable for hydrogen-free carbon-based films. To clarify the low friction mechanisms, a comparative investigation was conducted on the frictional characteristics of a-C, WC/a-C:H, and WC/a-C films. Contrary to two prevalent lubrication hypotheses of ‘friction-induced graphitization’ and ‘passivation’ mechanisms in carbon-based films, the establishment of an intrinsic weakly adhesive C/WO<sub>3</sub> sliding interface was identified as a critical factor contributing to the low friction of WC/a-C films.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110390"},"PeriodicalIF":6.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660360","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}
Pub Date : 2024-11-12DOI: 10.1016/j.triboint.2024.110388
Amit K. Praharaj , Srikanth Bontha , Vamsi K. Balla , Sunil K. Chakrapani , P.S. Suvin
Laser directed energy deposition (LDED) is an emerging technique for fabricating superalloy based aero engine components. Hence, the current work investigates the tribological performance of LDED processed IN625 at room temperature (RT) and high temperature (HT) conditions of 850 °C to replicate the operating environment of aero engine components. The comparison with conventionally processed (CP) sample confirmed that as-deposited (AD) sample showed similar friction behavior to the CP sample but slightly improved wear performance. The COF and wear rate of AD sample reduced significantly at HT compared to RT due to the evolution of stable oxide layer. NiO, Fe2O3, and Cr2O3 were the major phases in oxide layer. The work indicates suitability of LDED to fabricate wear resistant surfaces.
{"title":"Investigation on high-temperature tribological performance of laser directed energy deposited Inconel 625 for aerospace applications","authors":"Amit K. Praharaj , Srikanth Bontha , Vamsi K. Balla , Sunil K. Chakrapani , P.S. Suvin","doi":"10.1016/j.triboint.2024.110388","DOIUrl":"10.1016/j.triboint.2024.110388","url":null,"abstract":"<div><div>Laser directed energy deposition (LDED) is an emerging technique for fabricating superalloy based aero engine components. Hence, the current work investigates the tribological performance of LDED processed IN625 at room temperature (RT) and high temperature (HT) conditions of 850 °C to replicate the operating environment of aero engine components. The comparison with conventionally processed (CP) sample confirmed that as-deposited (AD) sample showed similar friction behavior to the CP sample but slightly improved wear performance. The COF and wear rate of AD sample reduced significantly at HT compared to RT due to the evolution of stable oxide layer. NiO, Fe<sub>2</sub>O<sub>3</sub>, and Cr<sub>2</sub>O<sub>3</sub> were the major phases in oxide layer. The work indicates suitability of LDED to fabricate wear resistant surfaces.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110388"},"PeriodicalIF":6.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660417","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}
Pub Date : 2024-11-12DOI: 10.1016/j.triboint.2024.110386
Ping Ren , Daliang Yu , Ganggang Wang , Jie Guo , Shangzhou Zhang , Hideo Kimura , Xin Zhou , Xiaofei Ma , Huanyu Li , Mao Wen
The Mo-Ag-Si solid solution film was prepared using magnetron sputtering to enhance hardness and toughness while reducing friction and wear. Compared with the pure MoSi2 film, the Mo-Ag-Si solid solution film exhibited a 25.69 % increase in hardness, a 5.17 % increase in the H/E ratio, and a 33.33 % boost in the H³/E² ratio. Tribological tests revealed that Ag atoms formed a self-lubricating AgMoxOy phase, reducing the friction coefficient to 0.09 and the wear rate to 3.89 × 10⁻⁷ mm³ /N·m over 565 m. First-principle calculations indicate that the Mo-Ag-Si solid solution film exhibited better mechanical and tribological properties than the pure MoSi2 film. These findings provide another approach for developing reliable MoSi2 films with high performance.
{"title":"Reliable and high-performance Ag-doped MoSi2 film with enhanced mechanical and tribological properties","authors":"Ping Ren , Daliang Yu , Ganggang Wang , Jie Guo , Shangzhou Zhang , Hideo Kimura , Xin Zhou , Xiaofei Ma , Huanyu Li , Mao Wen","doi":"10.1016/j.triboint.2024.110386","DOIUrl":"10.1016/j.triboint.2024.110386","url":null,"abstract":"<div><div>The Mo-Ag-Si solid solution film was prepared using magnetron sputtering to enhance hardness and toughness while reducing friction and wear. Compared with the pure MoSi<sub>2</sub> film, the Mo-Ag-Si solid solution film exhibited a 25.69 % increase in hardness, a 5.17 % increase in the H/E ratio, and a 33.33 % boost in the H³/E² ratio. Tribological tests revealed that Ag atoms formed a self-lubricating AgMo<sub>x</sub>O<sub>y</sub> phase, reducing the friction coefficient to 0.09 and the wear rate to 3.89 × 10⁻⁷ mm³ /N·m over 565 m. First-principle calculations indicate that the Mo-Ag-Si solid solution film exhibited better mechanical and tribological properties than the pure MoSi<sub>2</sub> film. These findings provide another approach for developing reliable MoSi<sub>2</sub> films with high performance.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110386"},"PeriodicalIF":6.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660415","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}
The rapid growth of portable electronics requires a multifunctional composite with superior wear capability. Exceptional wear resistance is crucial for preventing early failure of laminated materials in harsh operating conditions. Hence, fabricating novel materials with excellent anti-wear performance is the primary objective in forthcoming integrated devices. The coefficient of friction (COF) and specific wear rate (Ws) of the fabricated composites were evaluated by tribo-test. The worn surface was analyzed using atomic force microscopy and field emission scanning electron microscopy. Incorporating the hybrid filler improved the wear performance of the corresponding composites. Compared to the CFRP composite, the COF and Ws of BN (60 %)-ZrO2(40 %)/carbon fiber/epoxy composite were reduced by ∼56 % and 92 %, benefiting multifunctional thermal interface applications.
{"title":"Effect of 3D interconnected Zr-BN based hybrid filler on the tribological properties of carbon fiber reinforced epoxy composites","authors":"Chinmoy Kuila , Animesh Maji , Rajkumar Wagmare , Phani Kumar Mallisetty , Naresh Chandra Murmu , Tapas Kuila","doi":"10.1016/j.triboint.2024.110385","DOIUrl":"10.1016/j.triboint.2024.110385","url":null,"abstract":"<div><div>The rapid growth of portable electronics requires a multifunctional composite with superior wear capability. Exceptional wear resistance is crucial for preventing early failure of laminated materials in harsh operating conditions. Hence, fabricating novel materials with excellent anti-wear performance is the primary objective in forthcoming integrated devices. The coefficient of friction (COF) and specific wear rate (W<sub>s</sub>) of the fabricated composites were evaluated by tribo-test. The worn surface was analyzed using atomic force microscopy and field emission scanning electron microscopy. Incorporating the hybrid filler improved the wear performance of the corresponding composites. Compared to the CFRP composite, the COF and W<sub>s</sub> of BN (60 %)-ZrO<sub>2</sub>(40 %)/carbon fiber/epoxy composite were reduced by ∼56 % and 92 %, benefiting multifunctional thermal interface applications.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110385"},"PeriodicalIF":6.1,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660685","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}
Pub Date : 2024-11-08DOI: 10.1016/j.triboint.2024.110383
Fanwei Meng , Zhijie Cui , Yingdong Liang , Zixuan Wang , Tianbiao Yu , Zhelun Ma , Ji Zhao
Ultrasonic assisted polishing is an effective and precise method in engineering production that applies in finishing surface. A multiscale model was developed which is able to forecast the surface micromorphology and material removal rate. Process factors were considered include polishing force, grain diameter, ultrasonic amplitude and so on in this model at different scales. The impact of various process factors on surface roughness and material removal rate were analyzed by orthogonal experimental table. The perfect combination of process parameters was identified, and its effectiveness was verified through both simulations and experimental analysis, with an error rate below 9.43 %. To provide a mechanism study of ultrasonic polishing of curved surfaces and optimization of process parameters by this theoretical model.
{"title":"Multiscale model of material removal for ultrasonic assisted polishing of cylindrical surfaces","authors":"Fanwei Meng , Zhijie Cui , Yingdong Liang , Zixuan Wang , Tianbiao Yu , Zhelun Ma , Ji Zhao","doi":"10.1016/j.triboint.2024.110383","DOIUrl":"10.1016/j.triboint.2024.110383","url":null,"abstract":"<div><div>Ultrasonic assisted polishing is an effective and precise method in engineering production that applies in finishing surface. A multiscale model was developed which is able to forecast the surface micromorphology and material removal rate. Process factors were considered include polishing force, grain diameter, ultrasonic amplitude and so on in this model at different scales. The impact of various process factors on surface roughness and material removal rate were analyzed by orthogonal experimental table. The perfect combination of process parameters was identified, and its effectiveness was verified through both simulations and experimental analysis, with an error rate below 9.43 %. To provide a mechanism study of ultrasonic polishing of curved surfaces and optimization of process parameters by this theoretical model.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110383"},"PeriodicalIF":6.1,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660686","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}
Pub Date : 2024-11-08DOI: 10.1016/j.triboint.2024.110349
Sumit Rana , Lalit Thakur , Navneet Arora
The tribological behavior of tungsten inert gas (TIG) welded high entropy alloy (HEA) FeNiCrCoMo cladding deposited on AISI 1050 steel substrate was studied. The response surface methodology (RSM) optimized the TIG welding parameters. The SEM images revealed no signs of intermetallic compounds in the cladding, and the XRD analysis showed that the FeNiCrCoMo greatest peak corresponds to the BCC+FCC mixed phase. The microhardness and sliding wear resistance of the cladding were superior compared to the steel substrate owing to the solid solution strengthening and the presence of mixed phase. The worn surfaces of HEA claddings showed the presence of wear debris, grooves and micro-cutting from sliding wear as revealed by the SEM and 3-D profilometry images.
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