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Friction and wear maps of Mg-Er alloys with varying Er content 不同铒含量的镁铒合金的摩擦磨损图
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-26 DOI: 10.1016/j.triboint.2024.110337
R. Rashi , Soo Yeol Lee , Sudhanshu S. Singh , Y.L. Chiu , I.P. Jones , Jayant Jain
{"title":"Friction and wear maps of Mg-Er alloys with varying Er content","authors":"R. Rashi ,&nbsp;Soo Yeol Lee ,&nbsp;Sudhanshu S. Singh ,&nbsp;Y.L. Chiu ,&nbsp;I.P. Jones ,&nbsp;Jayant Jain","doi":"10.1016/j.triboint.2024.110337","DOIUrl":"10.1016/j.triboint.2024.110337","url":null,"abstract":"<div><div>Several rare-earth (e.g. Y, Gd, Nd, Ce) additions have been investigated till date in magnesium alloys. However, limited efforts have been made to examine the influence of Erbium (Er) in Mg alloys. This study is designed to unravel the role of Er addition on wear and friction characteristics of Mg-Er alloys. As-cast Mg-Er (0.5–12 wt%) alloys were prepared and tested under dry sliding conditions with varying normal loads (5 N to 100 N) and sliding speeds (0.01 m/s to 0.1 m/s). The results indicated that the addition of Er to Mg significantly improved the overall wear properties of the alloys. At higher Er content, a substantial decrease in severe wear rate region (75 %), while a ⁓ 40 % reduction in friction coefficient were observed. The formation of a protective tribo-oxide layer at the contact zone due to the increase in temperature from friction, combined with the strengthening effect of the Er-rich precipitates, contributed to enhanced wear resistance with Er addition. The surface energy of the Mg-12Er alloy was less than that of other Mg-Er alloys (⁓ 50 % reduction), causing reduced adhesion and abrasion wear and thus reducing the overall wear rate. Furthermore, it was observed that higher applied normal loads led to increased wear rates and friction coefficients, whereas with increasing sliding speed, the wear rate was reduced. Major wear mechanisms observed were abrasive, adhesive, plastic deformation, oxidation, and fatigue wear along with delamination.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110337"},"PeriodicalIF":6.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539481","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
Relationship between structure and properties of bio-based aromatic ionic liquids for tribological applications 用于摩擦学应用的生物基芳香族离子液体的结构与特性之间的关系
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-24 DOI: 10.1016/j.triboint.2024.110353
Md Hafizur Rahman , Ashlie Martini , Pradeep L. Menezes
{"title":"Relationship between structure and properties of bio-based aromatic ionic liquids for tribological applications","authors":"Md Hafizur Rahman ,&nbsp;Ashlie Martini ,&nbsp;Pradeep L. Menezes","doi":"10.1016/j.triboint.2024.110353","DOIUrl":"10.1016/j.triboint.2024.110353","url":null,"abstract":"<div><div>This study examined six phosphonium-based room-temperature ionic liquids (PRTILs) having trihexyltetradecyl- or tributyltetradecyl-phosphonium cations with saccharinate, salicylate, or benzoate anions, and obtained a feature parameter to correlate their cationic chain length, anionic ring size, and contact angle with tribological properties. PRTILs with trihexyltetradecyl-phosphonium cations had lower coefficient of friction (COF) and wear than PRTILs with tributyltetradecyl- phosphonium cations, a trend attributed to the additional methylene groups providing lower contact angle. For either cation, PRTILs with the saccharinate anion exhibited much lower COF and wear than single-ring anions, due to the formation of a low-shear-strength-tribofilm facilitated by the double-ring structure and sulfur of saccharinate. Overall, this study revealed PRTIL interfacial mechanisms that can be used to identify anion-cation combinations with optimal tribological performance.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110353"},"PeriodicalIF":6.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660422","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
Edge segmentation method for Si3N4 bearing rolling elements microcracks with profile-distortion 带有轮廓变形的 Si3N4 轴承滚动体微裂纹的边缘分割方法
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-24 DOI: 10.1016/j.triboint.2024.110351
Dahai Liao , Jianfei Yang , Guangmao Li , Jianbo Le , Hu Chen , Nanxing Wu
{"title":"Edge segmentation method for Si3N4 bearing rolling elements microcracks with profile-distortion","authors":"Dahai Liao ,&nbsp;Jianfei Yang ,&nbsp;Guangmao Li ,&nbsp;Jianbo Le ,&nbsp;Hu Chen ,&nbsp;Nanxing Wu","doi":"10.1016/j.triboint.2024.110351","DOIUrl":"10.1016/j.triboint.2024.110351","url":null,"abstract":"<div><div>For the profile-distortion of Si<sub>3</sub>N<sub>4</sub> bearing rolling elements microcracks image. A coupling method of variable-scale truncated median filtering and detection-driven active contour model is proposed. Details are as follows. The sigmoid activation function is constructed to dynamically adjust the circular window. The local threshold truncation is designed to adapt to the characteristics of different regions in the image. The area threshold is defined to eliminate non-target features. The mean peak signal-to-noise ratio (PSNR) of filtered images is about 40.263. The edge overlap rate is as low as 0.1027. The mean accuracy of feature extraction is about 94.33 %. To sum up, the influence result from profile-distortion on the accuracy of feature extraction of Si<sub>3</sub>N<sub>4</sub> bearing rolling elements microcracks is effectively solved.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110351"},"PeriodicalIF":6.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539475","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
Erosion behavior of Ti-hBN multifunctional coatings in a custom-made planetary test rig at extreme lunar temperatures Ti-hBN 多功能涂层在极端月球温度下的定制行星试验台中的侵蚀行为
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-24 DOI: 10.1016/j.triboint.2024.110339
Abhijith Kunneparambil Sukumaran , Sara Rengifo , Brandon Aguiar , Sohail M.A.K. Mohammed , William Scott , Michael Renfro , Sang-Hyon Chu , Cheol Park , Arvind Agarwal
{"title":"Erosion behavior of Ti-hBN multifunctional coatings in a custom-made planetary test rig at extreme lunar temperatures","authors":"Abhijith Kunneparambil Sukumaran ,&nbsp;Sara Rengifo ,&nbsp;Brandon Aguiar ,&nbsp;Sohail M.A.K. Mohammed ,&nbsp;William Scott ,&nbsp;Michael Renfro ,&nbsp;Sang-Hyon Chu ,&nbsp;Cheol Park ,&nbsp;Arvind Agarwal","doi":"10.1016/j.triboint.2024.110339","DOIUrl":"10.1016/j.triboint.2024.110339","url":null,"abstract":"<div><div>Spacecraft landings and takeoffs on the lunar surface, along with extreme temperature variations between day and night (−196 to 150º C), cause high-velocity dust impacts and erosion, resulting in the premature failure of structures. Ti/2 vol% hBN coatings were deposited using atmospheric (APS) and vacuum plasma spray (VPS) using cryo-milled powder feedstock to protect the structural components. The erosion performance of coatings at extreme lunar temperature regimes (−150 to 150 °C) was evaluated in a custom-made planetary erosion test rig (PETR) at low (50 mph) and high impact velocities (250 mph). The mass loss of VPS coatings was reduced by 50 % compared to the APS coatings and 40 % compared to the Ti6Al4V substrate. The cryogenic temperature induces brittleness in the material, rendering it susceptible to extreme conditions of material loss. The particle impact-deformation behavior was captured using a high-speed camera to study the erosion mechanism. This analysis revealed chipping in substrates and brittle APS coatings, while particles rebounding and embedding were observed in VPS coatings. Energy calculations, aided by particle trajectory tracking from the high-speed camera, have conclusively shown that VPS coatings absorb 5–10 % more energy than APS coatings during erosion tests. A modified erosion index was developed incorporating the fracture toughness and temperatures. New erosion models for brittle and ductile target materials are proposed for developing erosion-resistant material systems.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110339"},"PeriodicalIF":6.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539482","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
Tribological performance of lubricant with high concentration graphene additive dispersed by ultrasonic technology 采用超声波技术分散高浓度石墨烯添加剂的润滑剂的摩擦学性能
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-24 DOI: 10.1016/j.triboint.2024.110354
Zichun Wang , Jingsi Wang , Ruoxuan Huang , Jiayuan Wang , Boshen Zhang , K. Grinkevych , Jiujun Xu
{"title":"Tribological performance of lubricant with high concentration graphene additive dispersed by ultrasonic technology","authors":"Zichun Wang ,&nbsp;Jingsi Wang ,&nbsp;Ruoxuan Huang ,&nbsp;Jiayuan Wang ,&nbsp;Boshen Zhang ,&nbsp;K. Grinkevych ,&nbsp;Jiujun Xu","doi":"10.1016/j.triboint.2024.110354","DOIUrl":"10.1016/j.triboint.2024.110354","url":null,"abstract":"<div><div>Poor dispersibility and easy agglomeration of graphene in lubricating oil restrict its wide applications. In this study, a high concentration of graphene was successfully dispersed in HVIH-5 base oil by using ultrasonic technology without a dispersant. The tribological properties of this lubricant were studied by a reciprocating tribo-tester. The friction force and wear were reduced by 47.2 % and 42.8 % by using the high-concentration graphene lubricant compared to that of using base oil, respectively. The excellent tribological properties of the high-concentration graphene lubricant was attributed to the formation of a carbon-based layer with an ordered structure on the wear scar, which prevents direct contact of friction pairs and enhances the anti-oxidation effect of the friction surface.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110354"},"PeriodicalIF":6.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535697","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 friction and wear characteristics between modular charge and aluminum alloy for feeding process in artillery systems 火炮系统供料过程中模块装药与铝合金之间的摩擦和磨损特性研究
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-22 DOI: 10.1016/j.triboint.2024.110350
Zihan Wang, Linfang Qian, Shuang Yi, Liu Yang, Longmiao Chen
{"title":"Investigation of friction and wear characteristics between modular charge and aluminum alloy for feeding process in artillery systems","authors":"Zihan Wang,&nbsp;Linfang Qian,&nbsp;Shuang Yi,&nbsp;Liu Yang,&nbsp;Longmiao Chen","doi":"10.1016/j.triboint.2024.110350","DOIUrl":"10.1016/j.triboint.2024.110350","url":null,"abstract":"<div><div>In modern artillery systems, frictional properties of modular charge significantly impact the operation of artillery feeding system. In this study, Tribology performance between modular charge and aluminum alloy were investigated under simulated environment of artillery. The result indicates that the COF initially increased and then decreases with the temperature dropped from 50 °C to −40 °C. Additionally, COF increased from 0.19 to 0.41 when relative velocity increased from 100 mm/s to 2000mm/s. SEM detection and chemical composition analysis demonstrated that the main wear forms are adhesive wear and abrasive wear. The tribofilm including aluminum titanium oxide and aluminum nitrides generated through tribochemical reaction, which are beneficial for boundary lubrication. This work provides theoretical reference for artillery tribology research.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110350"},"PeriodicalIF":6.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535920","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
Study on the tribological properties of MXene reinforced polyurethane composites under dry conditions 研究 MXene 增强聚氨酯复合材料在干燥条件下的摩擦学特性
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-22 DOI: 10.1016/j.triboint.2024.110348
Zhibin Feng , Mingchao Shao , Mingkun Xu , Jing Zhang , Shoubing Chen , Tingmei Wang , Qihua Wang
{"title":"Study on the tribological properties of MXene reinforced polyurethane composites under dry conditions","authors":"Zhibin Feng ,&nbsp;Mingchao Shao ,&nbsp;Mingkun Xu ,&nbsp;Jing Zhang ,&nbsp;Shoubing Chen ,&nbsp;Tingmei Wang ,&nbsp;Qihua Wang","doi":"10.1016/j.triboint.2024.110348","DOIUrl":"10.1016/j.triboint.2024.110348","url":null,"abstract":"<div><div>The mechanical properties of the polymer matrix are crucial for forming a stable and dense transfer film between the friction pairs, facilitating friction reduction and wear resistance. This work introduces a novel polyurethane composite (PUC) system, prepared by incorporating the MXene (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) into a polyurethane elastomer, which exhibits a robust strength of ∼ 64 MPa and an excellent toughness of ∼ 155.8 MJ/m<sup>3</sup>. The PUC containing 0.5 wt% MXene (PUC<sub>0.5</sub>) exhibited excellent tribological properties, with the friction coefficient and wear rate (66 N, 0.54 m/s) reduced by 45.1 % and 206 % in comparison to pure PU, respectively. The excellent tribological properties of PUC<sub>0.5</sub> are attributed to exceptional mechanical properties and low shear of MXene.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110348"},"PeriodicalIF":6.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535912","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
Transient mixed thermal elastohydrodynamic lubrication analysis of aero ball bearing under non-steady state conditions 非稳态条件下航空球轴承的瞬态混合热弹性流体动力润滑分析
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-22 DOI: 10.1016/j.triboint.2024.110342
Jiqiang Wu , Tao He , Dandan Wang , Liqin Wang , Shengyuan Jiang , Yaqian Wang , Kang Chen , Chuanwei Zhang , Kun Shu , Zhen Li
{"title":"Transient mixed thermal elastohydrodynamic lubrication analysis of aero ball bearing under non-steady state conditions","authors":"Jiqiang Wu ,&nbsp;Tao He ,&nbsp;Dandan Wang ,&nbsp;Liqin Wang ,&nbsp;Shengyuan Jiang ,&nbsp;Yaqian Wang ,&nbsp;Kang Chen ,&nbsp;Chuanwei Zhang ,&nbsp;Kun Shu ,&nbsp;Zhen Li","doi":"10.1016/j.triboint.2024.110342","DOIUrl":"10.1016/j.triboint.2024.110342","url":null,"abstract":"<div><div>A transient mixed thermal elastohydrodynamic lubrication model of bearing considering the thermal effect and the changes in velocity, load, and contact geometry is proposed. Based on the bearing dynamic and lubrication analysis, the effects of bearing rotational speed and start-stop conditions on the dynamic behavior and lubrication performance are studied. Results show that when the bearing rotational speed exceeds a certain critical value, the increasing speed will reduce the film thickness, especially the outer raceway. The increasing bearing acceleration can cause a higher slide-roll ratio and film temperature at the initial start-up process. Compared with the start-up process, the lubrication change in the shut-down process has a similar opposite trend, but the overall lubrication performance is better.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110342"},"PeriodicalIF":6.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535921","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
Strong-bonding self-lubricating nickel-matrix coatings at a wide temperature range 宽温度范围内的强粘合自润滑镍基涂层
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-22 DOI: 10.1016/j.triboint.2024.110345
Jiangxia Liu , Wenyuan Chen , Yushan Geng , Juanjuan Chen , Jun Cheng , Shengyu Zhu , Jun Yang
{"title":"Strong-bonding self-lubricating nickel-matrix coatings at a wide temperature range","authors":"Jiangxia Liu ,&nbsp;Wenyuan Chen ,&nbsp;Yushan Geng ,&nbsp;Juanjuan Chen ,&nbsp;Jun Cheng ,&nbsp;Shengyu Zhu ,&nbsp;Jun Yang","doi":"10.1016/j.triboint.2024.110345","DOIUrl":"10.1016/j.triboint.2024.110345","url":null,"abstract":"<div><div>The weak bond strength that affects self-lubricating coatings across a wide temperature range severely limits their application on the surfaces of high-temperature mechanical parts. To solve this problem, the strong-bonding self-lubricating NiCrAlY-Ag-BaF<sub>2</sub>/CaF<sub>2</sub> coatings were produced by detonation spraying. The as-sprayed coatings exhibit high bond strengths of 65 – 75 MPa by controlling the formation of semi-molten state particles and in-situ oxides. The composite coating with 10 wt% fluoride eutectic and 20 wt% Ag shows the favorable tribological properties at a wide temperature range from room temperature to 900 °C. The combined effects, including the formation of the lubricating Ag film, the synergistic lubricating effect of BaF<sub>2</sub>/CaF<sub>2</sub> and CaCrO<sub>4</sub> formed by tribo-chemistry at high temperature, tribo-glaze of oxides, and tribo-transfer film, contribute to favorable lubrication at a wide temperature range.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110345"},"PeriodicalIF":6.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535916","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
Improving the wettability and lubrication properties of gallium-based liquid metal through the reaction adsorption of copper and gallium 通过铜和镓的反应吸附改善镓基液态金属的润湿性和润滑性能
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-10-22 DOI: 10.1016/j.triboint.2024.110338
Qiang Liu , Jie Guo , Zhibo Liu , Jun Cheng , Shengyu Zhu , Rengen Xu , Xinjian Cao , Jun Yang , Weimin Liu
{"title":"Improving the wettability and lubrication properties of gallium-based liquid metal through the reaction adsorption of copper and gallium","authors":"Qiang Liu ,&nbsp;Jie Guo ,&nbsp;Zhibo Liu ,&nbsp;Jun Cheng ,&nbsp;Shengyu Zhu ,&nbsp;Rengen Xu ,&nbsp;Xinjian Cao ,&nbsp;Jun Yang ,&nbsp;Weimin Liu","doi":"10.1016/j.triboint.2024.110338","DOIUrl":"10.1016/j.triboint.2024.110338","url":null,"abstract":"<div><div>Gallium-based liquid metal (GLM) is a promising lubricant used in extreme working conditions. In this paper, a copper-containing friction pair (316L-10Cu) is prepared, and the wettability and lubrication properties of GLM are improved by the reaction adsorption of copper and gallium. Compared with 316 L, the contact angle of GLM on 316L-10Cu surface decreases from 153° to 124°. At sliding speeds of 0.01 m/s (boundary lubrication) and 0.05 m/s (mixed lubrication), the friction coefficients of Si<sub>3</sub>N<sub>4</sub>/316L-10Cu decreases by 48.5 % and 24.6 % compared to Si<sub>3</sub>N<sub>4</sub>/316 L, and the wear rates decreases by 86.5 % and 80.7 %. The improved lubrication performance is attributed to copper doping promoting the adsorption of gallium on the frictional interfaces, and better wetting enhancing the hydrodynamic pressure effect of GLM.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"202 ","pages":"Article 110338"},"PeriodicalIF":6.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535695","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
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