Tribology International最新文献

英文中文

Sintering temperature effects on mechanical properties and antagonist wear of 3 mol% yttria stabilized zirconia

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-24 DOI: 10.1016/j.triboint.2025.110613

M.S. Amril , N.H. Jamadon , M.J. Ghazali , H.Z. Yew , M.I.M. Ahmad , A. Muchtar

3 mol% yttria-stabilized zirconia is widely used in dental restorations. However, due to its high mechanical properties, there is concern regarding the wear of its antagonist. This study investigated the impact of sintering temperature on the mechanical properties of 3 mol% yttria stabilized zirconia (3YSZ) and wear of its antagonist. Samples of 3YSZ were sintered at 1400 °C, 1500 °C, and 1600 °C. The microstructure of the samples was studied using a field emission scanning electron microscope (FESEM), and their mechanical properties, including density, Vickers hardness, and fracture toughness, were characterized. A wear test was conducted to measure the wear of the 3YSZ antagonist. FESEM results showed that the 3YSZ microstructure sintered at 1600°C was homogeneous, densely packed, and had fewer pores. Furthermore, it also displayed higher relative density, Vickers hardness, and fracture toughness. However, the group of 3YSZ sintered at 1600 °C exhibited the highest antagonist wear. A final sintering temperature of 1500 °C resulted in 3YSZ samples with optimal mechanical properties and low antagonist wear.

{"title":"Sintering temperature effects on mechanical properties and antagonist wear of 3 mol% yttria stabilized zirconia","authors":"M.S. Amril , N.H. Jamadon , M.J. Ghazali , H.Z. Yew , M.I.M. Ahmad , A. Muchtar","doi":"10.1016/j.triboint.2025.110613","DOIUrl":"10.1016/j.triboint.2025.110613","url":null,"abstract":"<div><div>3 mol% yttria-stabilized zirconia is widely used in dental restorations. However, due to its high mechanical properties, there is concern regarding the wear of its antagonist. This study investigated the impact of sintering temperature on the mechanical properties of 3 mol% yttria stabilized zirconia (3YSZ) and wear of its antagonist. Samples of 3YSZ were sintered at 1400 °C, 1500 °C, and 1600 °C. The microstructure of the samples was studied using a field emission scanning electron microscope (FESEM), and their mechanical properties, including density, Vickers hardness, and fracture toughness, were characterized. A wear test was conducted to measure the wear of the 3YSZ antagonist. FESEM results showed that the 3YSZ microstructure sintered at 1600°C was homogeneous, densely packed, and had fewer pores. Furthermore, it also displayed higher relative density, Vickers hardness, and fracture toughness. However, the group of 3YSZ sintered at 1600 °C exhibited the highest antagonist wear. A final sintering temperature of 1500 °C resulted in 3YSZ samples with optimal mechanical properties and low antagonist wear.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110613"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143507517","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}

引用次数: 0

Black phosphorus nanosheet dotted with Fe3O4-PDA nanoparticles: A novel lubricant additive for tribological applications

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-22 DOI: 10.1016/j.triboint.2025.110607

Xing Xu , Fenghua Su , Han Yu , Ruizhe Liu , Zhibiao Xu

The enhancement of black phosphorus applications and its lubricating properties as an additive are subjects of growing interest. Here, a novel BP/Fe₃O₄-PDA nanocomposite was synthesized by a facile approach. The results suggested that black phosphorus was successfully dotted with spherical Fe₃O₄ and PDA nanoparticles, which induced an amorphous alteration in black phosphorus. The obtained nanocomposites exhibited excellent dispersion stability in soybean oil compared to pure black phosphorus. The tribological performance of BP/Fe₃O₄-PDA nanocomposites in soybean oil and grease was evaluated by a ball-on-disc tribometer under high load. It was found that the use of BP/Fe₃O₄-PDA additives greatly reduced the friction coefficient (by 55.3 % in oil, 64.3 % in grease) and wear, proving to be more effective than BP additives. The findings revealed that the tribofilm comprising Fe₃O₄, PDA, and black phosphorus were generated at the friction interface, and their synergistic lubrication was deemed the primary factor enhancing the lubricating properties of oil and grease by BP/Fe₃O₄-PDA nano-additives. Additionally, the carbon film extracted from soybean oil was regarded as a contributing factor to the superior lubricating properties of BP/Fe₃O₄-PDA when used as additives in oil. This work paves the way for broadening the tribological applications of black phosphorus in lubricating oils and greases.

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引用次数: 0

Wear due to fatigue initiation

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-22 DOI: 10.1016/j.triboint.2025.110592

M. Ciavarella

Persson and coauthors have recently proposed an extension of the Rabinowicz idea for fatigue wear at different scales of roughness, where Paris’ crack growth law is applied to ”potential” wear particles. However, Persson’s theory suffers from the fact that initial size of defects is unknown and fatigue life is not entirely due to propagation, so we investigate a different formulation, where a law for initiation of cracks is used for a specimen with initial roughness of engineering interest. We find that results (in particular dependence on amplitude of roughness, and on friction coefficient) are qualitatively similar to the original Persson and coworkers’ theory, but may differ substantially quantitatively. As the assumption of a constant fatigue threshold may be incorrect for short cracks, both fatigue limit and fatigue threshold are made dependent of crack size, using the Murakami formulation as one of the possible alternatives. This makes wear rate be sensitive to the fine scale details of the roughness spectrum, which has an effect on increasing wear rate and small particles emission. The model seems to have qualitative trends in agreement with experiments, but obviously wear is a very complex phenomenon and many factors may be not captured.

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引用次数: 0

Synergetic lubrication between MoDTC and TiO2 nano-additive: Dynamic evolution of tribofilm induced by tribocatalysis and tribomechanical effect

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-21 DOI: 10.1016/j.triboint.2025.110608

Zhikai Fan , Shanshan Wang , Yihui Xiang , Yanfei Liu , Zeyang Yu , Xiangyu Ge , Wenzhong Wang

Molybdenum dithiocarbamate (MoDTC) can significantly reduce friction and wear through the formation of lubricious tribofilm by decomposition of MoDTC, but it is difficult to regulate the tribochemical behaviors. In this study, TiO₂ nanoparticles are used as nano-additive combined with MoDTC, leading to reduced friction and wear under 50 N. The addition of TiO₂ with proper concentration can promote the formation of lubricious Mo-content tribofilm. Meanwhile, TiO₂ in tribofilm can also lead to enhanced wear-resistance. Moreover, the dynamic evolution of the tribofilm is also investigated under varied conditions to elucidate the synergetic lubrication mechanisms between MoDTC and TiO₂. These findings offer fundamental insights of the lubrication mechanisms of MoDTC when combined with nano-additives from both tribochemical and tribomechanical viewpoints.

引用次数: 0

Self-lubricating and wear self-healing of polymer composites reinforced with bifunctional mesoporous silica nanocontainers

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-19 DOI: 10.1016/j.triboint.2025.110602

Guo Du , Qingyu Li , Feng Zhou , Xia Zhang

Polymer-based self-lubricating materials with self-healing ability can overcome the problems of short life-span caused by external damage during friction. This paper proposes a new bifunctional mesoporous silica nanocontainer (Cu/LO@SNF) to enhance the wear self-healing and friction-reducing properties of polymer materials. Using mesoporous silica nanoflowers (SNF) as nanocontainers, Cu nanoparticles as solid lubricant additives, and linseed oil (LO) as an external healing agent. Due to silica nanoflowers' large radial pore structure, their use for loading Cu nanoparticles can effectively prevent nanoparticle aggregation. Meanwhile, silica nanoflowers can also store a large amount of LO. Cu/LO@SNF were combined with epoxy resin (EP) to endow the resin with excellent wear self-healing and anti-wear capabilities. The results of the frictional performance test indicate that the friction coefficient of EP containing 10 wt% Cu/LO@SNF can be as low as 0.085, and the wear rate is reduced by 97.8 % compared with pure EP. During the friction process, Cu NPs and linseed oil stored in silica nanocontainers are released into the contact area of the friction pair. The Cu NPs enhance tribological properties as effective lubricants and aid in repairing wear areas when used with linseed oil. The synergistic effect of Cu NPs and LO enables the wear self-healing rate of the EP to reach 77 %, effectively improving the service life of EP materials.

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引用次数: 0

Atomic-scale investigation of Ti element regulating the mechanical and tribological performance of FeCrNi MEA

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-19 DOI: 10.1016/j.triboint.2025.110604

Wei Cheng , Hong-Liang Zhao , Zi-Chao Luo , Xin-Gong Li , Jin-Peng Zhu , Kai-Ming Wang , Guang-Wei Peng , Dong Hu , Xiu-Bo Liu

Molecular dynamics simulation was conducted to investigate the deformation mechanisms and enhance the mechanical and tribological properties of FeCrNiTi_x MEAs (x = 0.1–0.3). The results show that titanium element contributes to forming dispersed phases, effectively improving the alloy strength and stiffness. At lower titanium concentrations, smaller dispersed phases can cause localized stress concentrations, raising fracture risk during tensile loading. Increasing titanium content promotes a fine-grained microstructure, suppressing dislocation slip and enhancing interface stability. Additionally, titanium incorporation reduces the stacking fault energy, facilitating dislocation network formation and increasing stacking fault roughness. When polycrystalline grain boundaries are damaged, regeneration and migration occur. In contrast, despite the high toughness of twin boundaries, bending or migration does not take place when damage occurs. This research explores the mechanical and tribological properties of FeCrNi alloy, to promote the application and development of these alloys in manufacturing processes.

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引用次数: 0

A novel oxide layer for achieving ultra-high rolling contact fatigue life of bearing steel

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-19 DOI: 10.1016/j.triboint.2025.110603

Zhuofan Xia , Di Wu , Long Hao , Yifeng Li , Jianqiu Wang , En-Hou Han

This study introduces a novel method to enhance the rolling contact fatigue life of bearing steel by forming a crease-like oxide layer on the contact surface. This strengthening way is proposed based on the damage mechanism and ultra-high life in dispersion of fatigue life. Different from conventional surface modification pretreatment methods, this oxide layer can be formed through the reaction of the bearing steel surface with lubricating oil under cyclic rolling stress. This oxide layer can make the fatigue life of bearing steel get comprehensive improvement by delaying subsurface microstructure decay and reducing the likelihood of surface initiation failure.

引用次数: 0

A comprehensive review of ceramic additive manufacturing: Advancements in Direct Ink Writing (DIW) and tribological properties of 3D-printed ceramics

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-19 DOI: 10.1016/j.triboint.2025.110606

M. Alebrahim , M.J. Ghazali , N.H. Jamadon , Y. Otsuka

This paper provides an overview of the latest trends in 3D printing of ceramics, with a specific focus on the Direct Ink Writing (DIW) method and tribological considerations. DIW is a flexible and accurate method for depositing ceramic materials, allowing for detailed designs and geometric versatility. It has shown promise in a range of applications, from personalized medical implants to intricate architectural structures. To date, there is a notable absence of comprehensive surveys encompassing the tribological aspects of 3D-printed ceramics within academic discourse. A review paper addressing this gap would significantly contribute to the understanding of the tribological behaviour of 3D printed ceramics and provide valuable insights for further research in this domain. By reviewing recent literature and experimental results, this review intends to offer valuable insights into the latest advancements in ceramic 3D printing using the DIW method.

引用次数: 0

Tribological response and surface evolution of copper metal matrix composites under continuous sliding conditions at elevated temperatures 铜金属基复合材料在高温连续滑动条件下的摩擦响应和表面演变

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-18 DOI: 10.1016/j.triboint.2025.110601

Yelong Xiao , Hao Xu , Pingping Yao , Jiliang Mo , Yu Cheng , Mingxue Shen

Temperature rise is a salient characteristic of friction brakes during continuous braking, and may cause undesirable changes to the performance of friction materials. New insights are put forward here regarding the evolution of frictional behavior and tribological mechanisms of copper metal matrix composites (Cu-MMCs) under continuous sliding conditions at 600 and 800 ℃. The friction coefficients exhibit clear trends across three distinct stages at two temperatures during continuous sliding. At 600 ℃, the wear rate of Cu-MMC increases noticeably with an increase in the sliding time, the friction coefficient initially increases, then experiences a slight decrease, and eventually stabilizes. The wear mechanisms of Cu-MMC evolve from slight adhesive wear, abrasive wear and oxidative wear to mild adhesive wear, oxidative wear and severe abrasive wear. At 800 ℃, as sliding time increases, the friction coefficient decreases sharply at the beginning of sliding, and subsequently stabilizes. The wear rate of Cu-MMC decreases notably with increasing sliding time. The wear mechanisms of Cu-MMC transition from severe abrasive wear, adhesive wear, and oxidative wear to delamination, oxidative wear and mild abrasive wear.

{"title":"Tribological response and surface evolution of copper metal matrix composites under continuous sliding conditions at elevated temperatures","authors":"Yelong Xiao , Hao Xu , Pingping Yao , Jiliang Mo , Yu Cheng , Mingxue Shen","doi":"10.1016/j.triboint.2025.110601","DOIUrl":"10.1016/j.triboint.2025.110601","url":null,"abstract":"<div><div>Temperature rise is a salient characteristic of friction brakes during continuous braking, and may cause undesirable changes to the performance of friction materials. New insights are put forward here regarding the evolution of frictional behavior and tribological mechanisms of copper metal matrix composites (Cu-MMCs) under continuous sliding conditions at 600 and 800 ℃. The friction coefficients exhibit clear trends across three distinct stages at two temperatures during continuous sliding. At 600 ℃, the wear rate of Cu-MMC increases noticeably with an increase in the sliding time, the friction coefficient initially increases, then experiences a slight decrease, and eventually stabilizes. The wear mechanisms of Cu-MMC evolve from slight adhesive wear, abrasive wear and oxidative wear to mild adhesive wear, oxidative wear and severe abrasive wear. At 800 ℃, as sliding time increases, the friction coefficient decreases sharply at the beginning of sliding, and subsequently stabilizes. The wear rate of Cu-MMC decreases notably with increasing sliding time. The wear mechanisms of Cu-MMC transition from severe abrasive wear, adhesive wear, and oxidative wear to delamination, oxidative wear and mild abrasive wear.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110601"},"PeriodicalIF":6.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464887","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}

引用次数: 0

Effect of bulk and surface mechanical treatments on the tribological properties of Ti-13Nb-13Zr alloy for biomedical applications

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-02-18 DOI: 10.1016/j.triboint.2025.110605

Agnieszka Kowalczyk , Jarosław Pura , Agata Sotniczuk , Halina Garbacz

Ti-13Nb-13Zr (TNZ) alloy has great potential in the biomedical field due to its fully biocompatible composition and lower Young modulus value compared to the standard titanium biomaterials. As for the commercially pure Ti, the hardness and mechanical strength of TNZ can be enhanced by bulk (cold-rolling) and surface (shot-peening) mechanical treatments. However, it is still unknown how these processes, especially their combination, affect TNZ tribological properties in the simulated body fluids. This work responds to this aspect by investigating the tribological performance of TNZ in the microcrystalline, cold-rolled, shot-peened, and cold-rolled + shot-peened states. The wear behavior of the samples was tested by the pin-on-plate method (with a pin made of Al₂O₃) in the Hanks’ solution at 37°C. Tribological tests were supplemented with surface characterization using microscopy and profilometry techniques, microhardness tests and electrochemical corrosion analysis. The combination of the strengthening processes: cold rolling + shot peening resulted in the highest hardness (approx. 330 HV0.2 – almost 100 units more than for the initial state) and the lowest abrasive wear with an average volume loss of 2.881 mm³, while for the unstrengthened alloy, it amounted to 3.521 mm³. Corrosion tests revealed a correlation between surface treatment (shot peening, which significantly developed topography) and corrosion resistance, as for the grinded samples, passive current density was approx. 2.5–4 times lower than for the shot-peened alloy – for both: initial and cold-rolled states. Nevertheless, for all samples good corrosion properties in Hanks’ solution were received. The presented investigation revealed that the combination of cold rolling and shot-peening is the most promising in terms of TNZ tribo-corrosion performance. Moreover, this study shed light on TNZ degradation mechanisms, which are relevant during the wear process in Hank’s solution.

Ti-13Nb-13Zr（TNZ）合金具有完全的生物相容性，与标准钛生物材料相比杨氏模量值较低，因此在生物医学领域具有巨大的潜力。与市售的纯钛一样，TNZ 的硬度和机械强度也可以通过整体（冷轧）和表面（喷丸）机械处理得到提高。然而，这些工艺，尤其是它们的组合，如何影响 TNZ 在模拟体液中的摩擦学特性，目前仍是未知数。本研究针对这一问题，研究了微晶、冷轧、喷丸强化和冷轧+喷丸强化状态下 TNZ 的摩擦学性能。在 37°C 的汉克斯溶液中，通过针对板方法（使用 Al2O3 制成的针）测试了样品的磨损性能。除了摩擦学测试外，还使用显微镜和轮廓测量技术、显微硬度测试和电化学腐蚀分析进行了表面表征。冷轧+喷丸强化工艺的组合产生了最高的硬度（约 330 HV0.2 - 比初始状态高出近 100 个单位）和最低的磨料磨损，平均体积损失为 2.881 立方毫米，而未强化合金的平均体积损失为 3.521 立方毫米。腐蚀测试表明，表面处理（喷丸强化，可显著改善形貌）与耐腐蚀性之间存在相关性，因为对于磨削样品，无论是初始状态还是冷轧状态，被动电流密度都比喷丸强化合金低约 2.5-4 倍。尽管如此，所有样品在汉克斯溶液中都具有良好的腐蚀性能。研究结果表明，就 TNZ 三重腐蚀性能而言，冷轧和喷丸强化的组合是最有前途的。此外，这项研究还揭示了与汉克溶液中磨损过程相关的 TNZ 降解机制。

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