IF 5.3 1区工程技术

Wear Pub Date : 2025-07-16 DOI: 10.1016/j.wear.2025.206246

Kaixuan Yu , Yushan Geng , Jun Cheng , Wenyuan Chen , Hui Tan , Shengyu Zhu , Kaifeng Zhang , Jun Yang

{"title":"Oxidation and tribological behavior of NbTiTa medium-entropy alloy and its self-lubricating composite at 900 °C","authors":"Kaixuan Yu , Yushan Geng , Jun Cheng , Wenyuan Chen , Hui Tan , Shengyu Zhu , Kaifeng Zhang , Jun Yang","doi":"10.1016/j.wear.2025.206246","DOIUrl":"10.1016/j.wear.2025.206246","url":null,"abstract":"<div><div>The complex elemental composition of high-entropy/medium-entropy alloys (HEAs/MEAs)-based composites presents challenges in understanding their tribological performance due to intricate oxidation mechanisms. In this work, the dynamic interplay between isothermal oxidation and tribo-oxidation (static-dynamic) was systematically examined at 900 °C. Particular attention was given to the roles of oxide nucleation kinetics and growth thermodynamics in determining tribo-layer stability. This study also investigated in detail the tribological mechanisms of the NbTiTa MEA and its self-lubricating composite (NbTiTa-5 %Ag-5 %CaF<sub>2</sub>/BaF<sub>2</sub>). The results indicate that the oxidation rate constants of the NbTiTa alloy and its self-lubricating composite were 1.03 × 10<sup>−8</sup> g<sup>2</sup>cm<sup>−4</sup>s<sup>−2</sup> and 1.24 × 10<sup>−7</sup> g<sup>2</sup>cm<sup>−4</sup>s<sup>−2</sup>, respectively. Furthermore, the effect of counterparts (Si<sub>3</sub>N<sub>4</sub> and Al<sub>2</sub>O<sub>3</sub>) on the tribological behavior was also systematically investigated. Both materials demonstrated relatively low wear rates (10<sup>−6</sup> mm<sup>3</sup>/Nm) at 900 °C.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206246"},"PeriodicalIF":5.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655635","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

One-step construction of CrN coating and Cr-N-Fe metallurgical interface via deposition–nitriding strategy for enhanced fretting wear resistance of 40CrNiMo 通过沉积-氮化策略一步构建CrN涂层和Cr-N-Fe冶金界面，提高40CrNiMo的微动耐磨性

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-16 DOI: 10.1016/j.wear.2025.206247

Hui Zhang , Yilong Liang , Peng Wang , Xichang Shang , Peng Chen , Yuzhong Wu , Sheng Yang

{"title":"One-step construction of CrN coating and Cr-N-Fe metallurgical interface via deposition–nitriding strategy for enhanced fretting wear resistance of 40CrNiMo","authors":"Hui Zhang , Yilong Liang , Peng Wang , Xichang Shang , Peng Chen , Yuzhong Wu , Sheng Yang","doi":"10.1016/j.wear.2025.206247","DOIUrl":"10.1016/j.wear.2025.206247","url":null,"abstract":"<div><div>Although hard coatings like CrN are essential for increasing wear resistance, their poor substrate compatibility severely limits their engineering uses. The study achieves simultaneous formation of a Cr-N-Fe metallurgical interface and CrN coating through the deposition-nitriding composite strategy, resulting in a significant improvement in coating adhesion. Fretting wear experiments showed that the 40CrNiMo + Cr + PN exhibited a wear rate of 1.48 × 10<sup>−7</sup> mm<sup>3</sup> <span><math><mrow><mo>·</mo></mrow></math></span> N<sup>−1</sup> <span><math><mrow><mo>·</mo></mrow></math></span> m<sup>−1</sup> under a high load of 50 N, which was 7.68 times lower than the 40CrNiMo. The exceptional fretting wear performance originates from the generation of an excellent metallurgical interface, and the in-situ formation of a Cr<sub>2</sub>O<sub>3</sub>/CrN heterostructure under wear. This heterostructure, composed of in-situ formed Cr<sub>2</sub>O<sub>3</sub> nanoparticles during wear and the CrN coating, facilitates wear-resistant lubrication and synergistic strength-plasticity effects, thereby reducing friction and wear. This study provides important insights into the fretting wear behavior of deposition-nitriding CrN coatings and provides important guidance for the application of protective coatings on spline shafts.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206247"},"PeriodicalIF":5.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665850","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

Enhancement of high-temperature performance in graphite-based coatings via magnesium silicate hydroxide modification 氢氧化镁改性石墨基涂层的高温性能

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-16 DOI: 10.1016/j.wear.2025.206245

Bin Wang , Yanqiang Zang , Qiuying Chang , Bo Gao , Zhongnan Wang , Xiangli Wen , Lin Li , Tao Lin , Kai Gao

{"title":"Enhancement of high-temperature performance in graphite-based coatings via magnesium silicate hydroxide modification","authors":"Bin Wang , Yanqiang Zang , Qiuying Chang , Bo Gao , Zhongnan Wang , Xiangli Wen , Lin Li , Tao Lin , Kai Gao","doi":"10.1016/j.wear.2025.206245","DOIUrl":"10.1016/j.wear.2025.206245","url":null,"abstract":"<div><div>The paper introduces a composite coating achieves significant tribological performances under open-air conditions and a temperature range of 20∼700 °C during sliding. The coating was developed by uniformly brushing a mixture of aluminum phosphate acid compounds, magnesium silicate hydroxide (MSH), and graphite onto a titanium alloy substrate. Tribological experiments conducted across various temperatures revealed that as the testing temperature increased from 20 °C or 100 °C up to 200 °C or higher (up to 300 °C and 400 °C), the coefficient of friction for the MSH/Graphite composite coating rapidly decreases from 0.16∼0.19 to 0.02–0.05, due to the superlubricity of MSH without interlayer absorbent water. At temperatures of 500 °C, 600 °C, and 700 °C, although the friction coefficient remained relatively high at 0.13–0.3, the coating did not suffer significant damage but became denser under the combine effects of high pressure and severe frictional shear forces. This impressive tribological performance is attributed to the hydrogen bonding effect of MSH, which enhances the glass-forming ability of the H<sub>2</sub>O-H<sub>3</sub>PO<sub>4</sub>-Al(OH)<sub>3</sub>-graphite system, significantly improving the high-temperature oxidation resistance of the graphite within the coating. These findings offer a promising approach for designing solid lubricant solutions for high-temperature tribological applications.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206245"},"PeriodicalIF":5.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687272","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

Microstructural and mechanical characterization of the tribologically transformed zone of pearlitic and bainitic railroad wheel steels: Analysis of WEL, TL and NS 珠光体和贝氏体铁路车轮钢摩擦学转变区的组织和力学特性：WEL、TL和NS的分析

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-15 DOI: 10.1016/j.wear.2025.206242

R.S. Miranda , J.I.P. Agudelo , A.B. Rezende , A.C. Carvalho , A. Sinatora , P.R. Mei

{"title":"Microstructural and mechanical characterization of the tribologically transformed zone of pearlitic and bainitic railroad wheel steels: Analysis of WEL, TL and NS","authors":"R.S. Miranda , J.I.P. Agudelo , A.B. Rezende , A.C. Carvalho , A. Sinatora , P.R. Mei","doi":"10.1016/j.wear.2025.206242","DOIUrl":"10.1016/j.wear.2025.206242","url":null,"abstract":"<div><div>Rail transport is one of the logistics solutions that presents the lowest environmental impact, greatest safety, efficiency and competitiveness. Therefore, it is a strategic choice to promote the economic development and infrastructure of emerging countries, such as Brazil. As it is increasingly challenging to optimize the mechanical and tribological properties of pearlitic railway steels on an industrial scale, bainitic microstructure steels are an attractive solution to solve wheel-rail contact problems. However, there are few studies on the influence of bainite morphology on railway contact, especially in high-carbon steels. Thus, this research aims to analyze the effects of local plastic deformation caused by twin-disc rolling-sliding cycles on the microstructural changes that occur in the tribologically transformed zone. Microalloyed Class D forged railway wheel steel with pearlite (350 HV<sub>0.5</sub>), upper bainite (350 HV<sub>0.5</sub>) and lower bainite (450 HV<sub>0.5</sub>) microstructures was used and their relationship with wear and RCF performance. To support the characterization of the materials, analyses were performed using optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), electron backscattered diffraction (EBSD), transmission electron microscopy (TEM) and hardness measurements. The contact conditions promoted cementite decomposition, which initiated in the NS, intensified in the TL, and saturated in the WEL across all microstructures. The occurrence of martensitic transformation at greater depths in the bainitic microstructures compared to pearlite resulted in thinner deformed layers with higher stress accommodation capacity. These features provided the bainitic discs with superior resistance to RCF and wear.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206242"},"PeriodicalIF":5.3,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670368","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

Modeling on rolling contact fatigue life of gear steel with gradient structure 梯度结构齿轮钢滚动接触疲劳寿命建模

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-12 DOI: 10.1016/j.wear.2025.206243

Haiyang Chang , Xi Wang , Xiaolong Liu , Guoqiang Ren , Qiang Chen , Cheng Fu , Muxin Yang

引用次数: 0

Insights on microstructure and tribological properties of FeCoCrNiMo HEA reinforced CuSn coatings by laser cladding for monorail brakes 单轨制动器用激光熔覆feccrnimo HEA增强CuSn涂层的微观结构和摩擦学性能研究

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-12 DOI: 10.1016/j.wear.2025.206244

Yuling Lu , Yuxing Peng , Xiangdong Chang , Weijie Xiu , Zhiyuan Shi

引用次数: 0

Macro and micro scale load effects on tribocorrosion mechanisms in biomedical CoCrMo alloys 宏观和微观载荷对医用CoCrMo合金摩擦腐蚀机制的影响

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-10 DOI: 10.1016/j.wear.2025.206201

E. Hyla , A.R. Beadling , G. de Boer , R.M. Hall , M.G. Bryant

引用次数: 0

Investigation of solid particle erosion damage at elbow considering particle interaction 考虑颗粒相互作用的弯管固相颗粒侵蚀损伤研究

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-10 DOI: 10.1016/j.wear.2025.206241

Xuewen Cao , Jianing Zhang , Xiangyang Zhao , Zhongying Xu , Pengshen Wang , Zeyu Zhang , Wenshan Peng , Haopeng Zhang , Hanqing Wu , Jiawei Li , Xuerui Zang

{"title":"Investigation of solid particle erosion damage at elbow considering particle interaction","authors":"Xuewen Cao , Jianing Zhang , Xiangyang Zhao , Zhongying Xu , Pengshen Wang , Zeyu Zhang , Wenshan Peng , Haopeng Zhang , Hanqing Wu , Jiawei Li , Xuerui Zang","doi":"10.1016/j.wear.2025.206241","DOIUrl":"10.1016/j.wear.2025.206241","url":null,"abstract":"<div><div>Liquid-sand mixtures containing high concentrations of particles can cause substantial erosion damage to elbows. Despite this, the collision of particle interactions on erosion behavior remains understudied. This research addresses the significance of these interactions. An erosion loop test was employed to quantify the particle erosion strength and the distribution of erosion at the elbow. The resulting damage patterns on the pipe surface were examined at various locations along the elbow. A numerical model based on the Dense Discrete Phase Model (DDPM), incorporating particle interactions, was developed and its results were compared with experimental data. The study compared this model to the traditional bidirectional coupling DPM method, revealing differences in fluid flow distribution, particle trajectories, and particle-wall collision characteristics. The erosion damage observed consisted of numerous slender scratches, some of which exhibited lips and material accumulation at the ends, suggesting micro-cutting and plowing as the dominant modes of material loss. The DDPM method, by accounting for particle interactions, provided a more complex understanding of fluid distribution, particle dynamics, and erosion behavior.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206241"},"PeriodicalIF":5.3,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611815","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

Mechanism of steric hindrance reduction in improving tribological performance of methylphosphonate as a lubricant additive on steel-steel contact surfaces 甲基膦酸盐作为钢-钢接触面润滑剂添加剂，降低位阻改善摩擦性能的机理

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-09 DOI: 10.1016/j.wear.2025.206239

Wenqi Rui, Yuxiang Liang, Jingjian He, Yue Lou, Hongjin Tang, Mengya Zhao

{"title":"Mechanism of steric hindrance reduction in improving tribological performance of methylphosphonate as a lubricant additive on steel-steel contact surfaces","authors":"Wenqi Rui, Yuxiang Liang, Jingjian He, Yue Lou, Hongjin Tang, Mengya Zhao","doi":"10.1016/j.wear.2025.206239","DOIUrl":"10.1016/j.wear.2025.206239","url":null,"abstract":"<div><div>While phosphates are widely adopted in industrial systems due to their oxidation stability, their limited tribological performance persists as a critical challenge. This study demonstrates that controlled reduction of steric hindrance through methyl group substitution at phosphorus centers significantly enhances the tribological property of methylphosphonate. Tribological evaluation in PAO10 base oil revealed that dicresyl methylphosphonate (DCMP) with optimized spatial configuration outperforms conventional tricresyl phosphate (TCP) on steel-steel contact surfaces in the whole friction system. Specifically, DCMP exhibited a 21.96 % reduction in wear volume, a 137.42 % increase in the last non-seizure load (P<sub>B</sub>), and a 27.02 % increase in weld points (P<sub>D</sub>). Additionally, XPS, FIB-TEM, and EDS analyses confirmed that DCMP formed a tribo-film with a higher phosphorus content, which was directly correlated with spatial structure modification. Crucially, DFT calculations confirmed that the introduction of methyl groups effectively exposed active phosphorus atoms and P=O oxygen atoms. This promotes the cleavage of P-O bonds via hydroxylation and adsorption-induced mechanisms. The reduced spatial constraints promote efficient adsorption and subsequent tribo-film generation. These findings propose a novel molecular design strategy for developing advanced phosphate-based extreme pressure additives.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206239"},"PeriodicalIF":5.3,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614725","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

Surface treatment of rail welded joints to balance wear in different zones: Laminar plasma inhomogeneous quenching method 平衡不同区域磨损的钢轨焊接接头表面处理：层流等离子体不均匀淬火法

IF 5.3 1区工程技术

Wear Pub Date : 2025-07-09 DOI: 10.1016/j.wear.2025.206236

Hui Zhu , Taoshuo Bai , Jingmang Xu , Jian Yang , Kai Wang , Wenfeng Gao , Yao Qian , Ping Wang

{"title":"Surface treatment of rail welded joints to balance wear in different zones: Laminar plasma inhomogeneous quenching method","authors":"Hui Zhu , Taoshuo Bai , Jingmang Xu , Jian Yang , Kai Wang , Wenfeng Gao , Yao Qian , Ping Wang","doi":"10.1016/j.wear.2025.206236","DOIUrl":"10.1016/j.wear.2025.206236","url":null,"abstract":"<div><div>The rail welded joints represent critical components and potential weak points within seamless rail lines. The differences in microhardness and microstructure across different zones of these joints contribute to the occurrence of uneven wear. This study proposes a laminar plasma inhomogeneous quenching (LPIQ) method to address this issue and comprehensively investigates the effects of LPIQ on wear and rolling contact fatigue (RCF) behaviors of two types of rail welded joints. The results indicated that LPIQ treatment induced grain refinement (1.63–2.04 μm) in different zones of two types of welded joints. Simultaneously, this treatment facilitated the recrystallization process dominated by continuous dynamic recrystallization and geometric dynamic recrystallization. The proportion of recrystallized grains in the quenching zone exceeded 55 %, with the difference between various zones being less than 1 %. The high uniformity of the microstructure following LPIQ treatment contributes to balancing the wear across different zones of the welded joints, yielding wear homogenization index of 20.75 % for quenching thermite welded joint (QTW) specimens and 4.96 % for quenching flash welded joint (QFW) specimens. Furthermore, the RCF damage observed in QFW specimens is more complex and severe compared to that in QTW specimens. The quenching zones of the specimens following the LPIQ treatment are rich in high-angle grain boundaries, whereas the substrate predominantly consists of low-angle grain boundaries. This differentiated distribution of grain boundaries enhances the joint's resistance to damage and inhibits crack propagation towards the substrate. Additionally, the kernel average misorientation (KAM) value in the quenching zone significantly increases compared to that of the substrate, and its distribution exhibits a high degree of uniformity.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206236"},"PeriodicalIF":5.3,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604254","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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