Tribology International最新文献

Influence of triangular texture composite MAO coating on the tribological properties of aluminum alloys 三角形纹理复合 MAO 涂层对铝合金摩擦学特性的影响

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-14 DOI: 10.1016/j.triboint.2024.110243

{"title":"Influence of triangular texture composite MAO coating on the tribological properties of aluminum alloys","authors":"","doi":"10.1016/j.triboint.2024.110243","DOIUrl":"10.1016/j.triboint.2024.110243","url":null,"abstract":"<div><p>To compensate for the poor friction and wear performance of aluminum alloys, in this study, four triangular textures with different area occupancy rate (5.16 %, 9.17 %, 20.63 % and 28.07 %) were prepared on the surface of aluminum alloys by laser texture technology, subsequently micro-arc oxidation (MAO) coatings were prepared using MAO technique. The treated samples were characterised by X-ray diffraction, micro-morphological analysis, optical profiler and energy dispersive spectroscopy. The tribological performance under oil lubrication conditions was tested by using a pin-disc contact rotational friction wear tester. The results showed that the sharp corners at the edges of the texture caused current concentration, which resulted in more intense sparking and accelerated MAO growth, thus creating more pores and roughening the surface of the coating. In terms of tribological performance, the triangular texture with 9.17 % area occupancy rate showed the best tribological performance before MAO coating, compared with the substrate, the average friction coefficient decreased by 64.11 %; and after the MAO coating was applied, the triangular texture composite MAO coating with 9.17 % area occupancy rate still had the best tribological performance, and its average friction coefficient further decreased compared with that of the smooth MAO coating by 33.07 %. The analysis suggests that the texture can store abrasive particles to prevent the MAO coatings from being worn through, leading to coating failure, while the hard MAO coatings can resist contact stresses well enough to prevent the texture from being flattened, leading to the failure of the function of storing abrasive debris. Therefore, the integration between texture and MAO coating can greatly enhance the anti-wear properties of aluminum alloys.</p></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142232361","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

Liquid-infused surface on optimized anodic porous aluminum for anti-frost and anti-ice application 优化阳极多孔铝上的液体注入表面，用于防霜防冰

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-12 DOI: 10.1016/j.triboint.2024.110237

引用次数: 0

Enhancement of tribological performance of PTFE/aramid fabric liner under high-temperature and heavy-load through incorporation of microcapsule/CF multilayer composite structure 通过加入微胶囊/CF 多层复合结构提高聚四氟乙烯/芳纶织物衬垫在高温重载条件下的摩擦学性能

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-12 DOI: 10.1016/j.triboint.2024.110239

引用次数: 0

Investigations on mechanical and surface properties of friction stir welded dissimilar joints of 2507 SDSS and 317L ASS 2507 SDSS 和 317L ASS 异种摩擦搅拌焊接接头的机械和表面特性研究

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-12 DOI: 10.1016/j.triboint.2024.110226

引用次数: 0

Effect of TiH2 addition amounts on the microstructures and properties of porous Cu-Sn-Ti diamond tools TiH2 添加量对多孔铜-锡-钛金刚石工具微观结构和性能的影响

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-12 DOI: 10.1016/j.triboint.2024.110241

引用次数: 0

Simulation and experimental study of tool passivation based on magnetic elastic abrasive particles 基于磁性弹性磨粒的工具钝化模拟与实验研究

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-11 DOI: 10.1016/j.triboint.2024.110234

{"title":"Simulation and experimental study of tool passivation based on magnetic elastic abrasive particles","authors":"","doi":"10.1016/j.triboint.2024.110234","DOIUrl":"10.1016/j.triboint.2024.110234","url":null,"abstract":"<div><p>The presence of micro-cracks and serrations on the tool often leads to its premature failure. However, these microscopic defects can be mitigated through passivation treatment of the tool. Magnetoelastic abrasive particles are new composite particles formed by using abrasive phase particles, magnetic media phase particles and polymer matrix according to a certain ratio, the abrasive particles have both viscoelasticity and magnetic conductivity. The introduction of magnetoelastic abrasive grains into the dual-disk tool passivation equipment can effectively improve the surface quality of the tool and increase the passivation efficiency. At the outset, a model for tool passivation was crafted employing the ABAQUS simulation software. This model aimed to evaluate the effects of diverse passivation variables on the stress levels, the shape of the impact, and the depth of the impact experienced by the tool. Subsequently, by applying statistical theory combined with fitting function techniques, a mathematical model was constructed to determine the passivation volume of the tool subjected to multiple magnetic elastic abrasive particles. This model was then used to examine the impact count and passivation volume associated with each passivation factor. Finally, a tool passivation experiment was conducted using a dual-disk magnetic tool passivation device. The results showed that the smaller the impact velocity of magnetic elastic abrasive particles, the stress and impact depth of the cutting tool are decreasing, and the deformation of the cutting edge is caused by compressive stress. The error of impact depth calculated by simulation and mathematical model is within 20 %, which proves that the mathematical model can better calculate the impact depth of magnetic elastic abrasive particles on the cutting edge of the tool.</p></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172765","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 friction block thickness on the high-temperature tribological behavior of the braking interface of high-speed train 摩擦片厚度对高速列车制动界面高温摩擦学行为的影响

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-10 DOI: 10.1016/j.triboint.2024.110232

引用次数: 0

Experimental investigation of stick-slip behaviors in dry sliding friction 干滑动摩擦中粘滑行为的实验研究

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-10 DOI: 10.1016/j.triboint.2024.110221

{"title":"Experimental investigation of stick-slip behaviors in dry sliding friction","authors":"","doi":"10.1016/j.triboint.2024.110221","DOIUrl":"10.1016/j.triboint.2024.110221","url":null,"abstract":"<div><p>Friction-induced vibration, particularly the bothersome stick-slip behavior, is a significant contributor to machine damage and component failure. In this study, the vibrational displacement, sound pressure, and coefficient of friction (COF) of several metal or alloy samples in dry conditions are tested using a reciprocating friction force test apparatus. It is found that the stick-slip behavior is more likely to occur at low sliding speeds and high normal loads. Furthermore, under the same working conditions, increasing the surface roughness of the sample or enhancing the hardness difference between the sample and the counterpart can mitigate the stick-slip behavior during the friction process. By analyzing the characteristic parameters of the stick-slip behavior, it is found that the temporal period and the stick-time decrease significantly with an increase in relative sliding speed. Additionally, the amplitude and intensity of the friction-induced noise increases with the increase of the relative sliding speed and normal load. The frequencies of the sound pressure are primarily concentrated around the natural frequency of the frictional system. Finally, we extract the COF and find that the average COF as well as the maximum and minimum COF first decreases sharply, and then becomes stable with the increase of the relative sliding speed due to the transition of friction state from stick-slip behavior to smooth sliding.</p></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142167903","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

High-temperature fretting wear behavior and microstructure stability of a laser-cladding Ti-Al-C-N composite coating meditated by variable cycle conditions 可变循环条件下激光熔覆 Ti-Al-C-N 复合涂层的高温烧蚀磨损行为和微观结构稳定性

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-10 DOI: 10.1016/j.triboint.2024.110224

{"title":"High-temperature fretting wear behavior and microstructure stability of a laser-cladding Ti-Al-C-N composite coating meditated by variable cycle conditions","authors":"","doi":"10.1016/j.triboint.2024.110224","DOIUrl":"10.1016/j.triboint.2024.110224","url":null,"abstract":"<div><p>Ti-6Al-4 V titanium alloy is used for low-pressure compressor blades of aero-engine due to its high specific strength, excellent corrosion resistance and high-temperature stability. Low-pressure compressor blades are subject to fretting wear in service, which may lead to fracture failure of the blades. The preparation of wear-resistant coatings is currently an effective solution in solving the problem of fretting wear on Ti-6Al-4 V titanium alloy. However, the fretting wear resistance and microstructure stability of the coating under variable cycle fretting conditions require more attention. In this work, the fretting wear performance and microstructure stability of the Ti-Al-C-N composite coating under variable cycle fretting conditions are investigated. The results show that the parameters of variable cycle operating conditions have a notable effect on the coefficient of friction (COF). The variable frequency and variable temperature working conditions result in the alteration of the fretting operation mechanism. Whereas the variable stroke amplitude and the variable load conditions do not cause changes in the fretting operation mechanism, and both are in the gross slip region (GSR). The lowest wear rate occurs under variable stroke amplitude conditions. The wear rate is the maximum under the variable cycle temperature condition. According to the dissipated energy calculation, the difference between the two different stroke amplitudes is the biggest among all the conditions. EBSD and TEM analyses show that the subsurface of variable stroke amplitude worn scar has a more uniform strain distribution, and reveals a unique subsurface structure with a transformation from crystalline to amorphous, which contributes to improving the wear resistance. This work provides insights into coating microstructure stability and wear mechanisms under variable cycle conditions.</p></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142167906","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

Investigation of white etching area at non-carbides origin in M50 bearing steel under rolling contact fatigue 滚动接触疲劳条件下 M50 轴承钢非碳化物源白蚀区的研究

IF 6.1 1区工程技术

Tribology International Pub Date : 2024-09-10 DOI: 10.1016/j.triboint.2024.110222

引用次数: 0