IF 5.3 1区工程技术

Wear Pub Date : 2025-04-14 DOI: 10.1016/j.wear.2025.206082

Huwei Sun , Peiying Shi , Benbin Xin , Juanjuan Chen , Gewen Yi , Shanhong Wan , Yu Shan , Wangjun Song

{"title":"Study of tribological behavior of atmospheric plasma sprayed (Ni-5wt% Al)-Bi coating at room temperature to 800 °C","authors":"Huwei Sun , Peiying Shi , Benbin Xin , Juanjuan Chen , Gewen Yi , Shanhong Wan , Yu Shan , Wangjun Song","doi":"10.1016/j.wear.2025.206082","DOIUrl":"10.1016/j.wear.2025.206082","url":null,"abstract":"<div><div>In this study, bismuth (Bi) was incorporated in a plasma sprayed Ni-5wt% Al coating. The results demonstrate that Bi reacts with ambient oxygen and the Ni matrix during spraying to produce δ-Bi<sub>2</sub>O<sub>3</sub> and NiBi<sub>3</sub>. The lubricity of Bi and δ-Bi<sub>2</sub>O<sub>3</sub> enables the coating to exhibit low friction at 25 °C. However, the soft properties of Bi, δ-Bi<sub>2</sub>O<sub>3</sub>, and NiBi<sub>3</sub> reduce the hardness and low-temperature wear resistance of the coating. In particular, at 200 °C, the soft and brittle NiBi<sub>3</sub> increases the wear rate of the coating. Above 400 °C, with the phase transition from NiBi<sub>3</sub> to NiBi and intense tribo-oxidation reaction, the worn surface gradually forms a highly strong and tough tribo-layer, comprising NiBi, α-Bi<sub>2</sub>O<sub>3</sub>, δ-Bi<sub>2</sub>O<sub>3</sub>, NiO, Al<sub>2</sub>O<sub>3</sub>, and Bi<sub>24</sub>Al<sub>2</sub>O<sub>39</sub>. Consequently, friction and wear decrease as the temperature increases. By 800 °C, the coating achieves optimal friction reduction and exhibits an antiwear behavior. Moreover, the tribo-layer formed at 800 °C provides a continuous antiwear effect even when the temperature drops below 400 °C.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"574 ","pages":"Article 206082"},"PeriodicalIF":5.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839605","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

Evolution of friction products and wear mechanism of plasma transfer arc welding Ni-WC coating at 200 °C and different load conditions 200℃及不同载荷条件下等离子转移弧焊Ni-WC涂层摩擦产物演变及磨损机理

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-13 DOI: 10.1016/j.wear.2025.206080

Kuangxin Luo , Qi Yang , Guoping Li , Jing Lu , Hao Ma , Jiayi He , Ning Wu , Fenghua Luo

{"title":"Evolution of friction products and wear mechanism of plasma transfer arc welding Ni-WC coating at 200 °C and different load conditions","authors":"Kuangxin Luo , Qi Yang , Guoping Li , Jing Lu , Hao Ma , Jiayi He , Ning Wu , Fenghua Luo","doi":"10.1016/j.wear.2025.206080","DOIUrl":"10.1016/j.wear.2025.206080","url":null,"abstract":"<div><div>Ni-WC coating was prepared by plasma transfer arc welding. According to the application scenario of the pinch roll, the evolution of the friction products and wear mechanism of the coating when countering against the H13 steel under different friction loads at 200 °C was investigated. The results showed that at a friction load of 10–40 N, the main friction product was iron oxide generated on the H13 steel, and the oxides were transferred to the friction surface of the coating. When the load was 30 N, due to severe material transfer, the wear rate of the coating reached a maximum value of 13.73 × 10<sup>−5</sup> mm<sup>3</sup>/(N·m). But when the load was 40 N, the formation of compacted oxide layer hindered the formation of stress concentration layer and reduced wear. When the load was 50 N, a continuous adhesive layer of iron-carbon oxide was formed, which further suppressed the formation of oxides and material transfer, thereby reducing the wear rate to 1.79 × 10<sup>−5</sup> mm<sup>3</sup>/(N·m). When the friction load increased from 10-20 N–30 N, 40 N, and 50 N, the wear mechanism shifted from abrasive wear to oxidative and abrasive wear, oxidative wear, and adhesive wear in sequence.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206080"},"PeriodicalIF":5.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825635","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 tribological performance of 3D-printed PEEK and CFR-PEEK composites by combining optimized deposition strategies and post-processing conditions 结合优化的沉积策略和后处理条件，提高3d打印PEEK和CFR-PEEK复合材料的摩擦学性能

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-12 DOI: 10.1016/j.wear.2025.206079

Zhongcheng Cui , Wurikaixi Aiyiti , Ayiguli Kasimu , Lanlan Dong , Ru Jia , Cijun Shuai

{"title":"Improving tribological performance of 3D-printed PEEK and CFR-PEEK composites by combining optimized deposition strategies and post-processing conditions","authors":"Zhongcheng Cui , Wurikaixi Aiyiti , Ayiguli Kasimu , Lanlan Dong , Ru Jia , Cijun Shuai","doi":"10.1016/j.wear.2025.206079","DOIUrl":"10.1016/j.wear.2025.206079","url":null,"abstract":"<div><div>Controlling the tribological performance of fused filament fabrication (FFF) components remains a challenge, which depends on the understanding of their wear mechanisms. In this study, the effects of deposition strategies (Top, Front, and Side, corresponding to sliding surfaces perpendicular to the building, transverse, and scanning directions, respectively) and annealing temperatures (200 °C, 250 °C, and 300 °C) on the anisotropic tribological performance of FFF-printed polyether ether ketone (PEEK) and short carbon fiber-reinforced PEEK (CFR-PEEK) were investigated. We used a 316 L stainless steel ball as the counterpart for reciprocating sliding wear tests under water-lubricated conditions, detailing how the shift in the wear mechanism is attributed to the combined effect of the interfacial weld strength of the deposited layers, the fiber-matrix bonding strength, and the matrix crystallinity. The results show that the specific combination of deposition strategy and annealing temperature can effectively improve the wear performance of FFF-PEEK composites. For CFR-PEEK, the wear performance of Top specimens was best at the annealing temperature of 200 °C, Front specimens at 300 °C, and Side specimens were unsatisfactory at all annealing temperatures. Furthermore, fiber orientation is the predominant factor in determining the anisotropic tribological performance of CFR-PEEK, but the effect of the deposited layer orientation on the anisotropy should not be neglected. The findings offer critical insights for optimizing the design and fabrication of FFF-PEEK components for tribological applications.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206079"},"PeriodicalIF":5.3,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826192","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

Statistical modeling of multi-asperity wear and transfer in polymer-metal interfaces 聚合物-金属界面多粗糙度磨损与传递的统计建模

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-12 DOI: 10.1016/j.wear.2025.206078

Jiang Wei , Kun Liu , Xiaojun Liu , Yi Feng , Jiaxin Ye

引用次数: 0

Experimental studies of rolling and rolling-sliding contact fatigue behaviour of high nitrogen alloyed Cronidur-30 bearing steel 高氮合金Cronidur-30轴承钢滚动及滚动滑动接触疲劳特性试验研究

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-10 DOI: 10.1016/j.wear.2025.206070

M.R. Ranju, Y. Arivu, D. Kesavan

{"title":"Experimental studies of rolling and rolling-sliding contact fatigue behaviour of high nitrogen alloyed Cronidur-30 bearing steel","authors":"M.R. Ranju, Y. Arivu, D. Kesavan","doi":"10.1016/j.wear.2025.206070","DOIUrl":"10.1016/j.wear.2025.206070","url":null,"abstract":"<div><div>This study analyzes the rolling and rolling-sliding contact fatigue behavior of Cronidur-30, an advanced nitrogen-alloyed steel tempered at high and low temperatures, with a comparative analysis against AISI 440C. The experiments were separately conducted under pure rolling (0 % slip) and rolling-sliding (0.5 % slip) conditions, using base and graphene-enhanced lubricants (GNL). Recent works among these materials revealed that the Cronidur- 30 material exhibited a longer rolling contact fatigue (RCF) life (L<sub>10</sub> life) compared to 440C. Given the difficulties in predicting RCF L<sub>10</sub> life under slip conditions, anti-wear performance under rolling contact fatigue conditions was evaluated by quantifying material removal during tests at zero and 0.5 % slip conditions. Compared to 440C, Cronidur-30 showed reduced anti-wear performance in both pure rolling and slip conditions with base lubrication. Although the use of GNL followed the same trend in anti-wear performance across these materials, it still showed a notable improvement over the base lubricant. In pure rolling conditions, GNL led to improved wear performance relative to the base lubricant, with 440C exhibiting the greatest improvement of 53 %, and Cronidur-30 showing a 32 % increase compared. Under slip conditions with GNL, Cronidur-30 achieved a 98 % improvement in anti-wear performance, significantly higher than the 38 % improvement observed in 440C compared to the base lubricant. This enhancement is primarily attributed to the graphene nano-additives, which reduce metal-to-metal contact and thus improve antiwear performance. The results highlight the potential of graphene nano lubricants to significantly enhance the wear resistance of aerospace steels under slip-rolling conditions.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"574 ","pages":"Article 206070"},"PeriodicalIF":5.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855405","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

A novel surface engineering technique for improving tribological performance of low-cost beta titanium alloy 一种改善低成本钛合金摩擦学性能的表面工程新技术

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-10 DOI: 10.1016/j.wear.2025.206076

Tong Pan , Xiaoying Li , Zhenxue Zhang , Yepeng Yang , Chuang Liu , Guanxiong Qiao , He Huang , Hanshan Dong

{"title":"A novel surface engineering technique for improving tribological performance of low-cost beta titanium alloy","authors":"Tong Pan , Xiaoying Li , Zhenxue Zhang , Yepeng Yang , Chuang Liu , Guanxiong Qiao , He Huang , Hanshan Dong","doi":"10.1016/j.wear.2025.206076","DOIUrl":"10.1016/j.wear.2025.206076","url":null,"abstract":"<div><div>A novel surface engineering technique has been developed to integrate bulk solution treatment with Catalytic Ceramic Conversion Treatment (C3T) to enhance the tribological performance of low-cost beta (LCB) titanium alloy (Ti-6.8Mo-4.5Fe-1.5Al). This new integrated technique can effectively address the technical limitation of low bonding strength at the oxide layer-matrix interface formed by the previous combination of solution treatment with conventional Ceramic Conversion Treatment (C2T). Reciprocating pin-on-disc sliding wear tests were performed against WC balls under dry conditions. Computational analyses of electronic structure changes and post-examination of the surface structure were conducted to investigate the catalytic mechanism of gold. Profilometry-based Indentation Plastometry (PIP) was carried out to assess the impact of surface treatment on the bulk material properties.</div><div>Experimental results demonstrate that the wear resistance of the LCB titanium alloy can be improved by approximately 200 times by the new C3T; the oxide layer is 20 times thicker than that of the C2T-treated samples; the coefficient of friction decreased from 0.4 to 0.8 for untreated samples to 0.1–0.2 for the C3T treated samples. The typical wear mechanism of titanium, characterised by severe adhesive wear, is replaced by mild abrasive wear for C3T treated LCB titanium alloy when sliding against WC balls in air; and delamination wear caused by weak interface bonding in conventional C2T-treated surface is eliminated. Interestingly, the pre-addition of a gold film decreased the surface hardness while improving the wear resistance, and acting as a lubricant in the tribological process, particularly under low loads due to the soft and chemically stable nature of gold.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206076"},"PeriodicalIF":5.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821113","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 WC/C-based DLC coatings under high temperature in dry and humid conditions 干湿高温条件下WC/ c基DLC涂层的摩擦学性能

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-09 DOI: 10.1016/j.wear.2025.206073

Vanessa Montoya , Ali Zayaan Macknojia , Hamidreza Mohseni , Thomas D. Kasprow , Diana Berman

{"title":"Tribological performance of WC/C-based DLC coatings under high temperature in dry and humid conditions","authors":"Vanessa Montoya , Ali Zayaan Macknojia , Hamidreza Mohseni , Thomas D. Kasprow , Diana Berman","doi":"10.1016/j.wear.2025.206073","DOIUrl":"10.1016/j.wear.2025.206073","url":null,"abstract":"<div><div>Wear-resistant diamond-like carbon (DLC) films are widely used in industrial, biomedical, and automotive applications. However, their tribological performance across different environmental conditions, particularly during transitions between humid and dry environments, remains poorly understood. This study examines the tribological performance of WC/C-based DLC coatings under varying loads, temperatures, and environmental conditions. The results indicate that wear remained consistent at room temperature and 100 °C but increased with higher loads and temperatures. Elevated temperatures, particularly in dry conditions, were associated with greater disorder and partial graphitization of the coating, as revealed by Raman spectroscopy. The lower friction and wear observed in humid environment were connected to the presence of oxygen that assisted in preserving the structure of the coating. Indeed, the tests conducted in dry oxygen atmosphere confirmed lower friction and prolonged lifetime of the coating. The coating's performance in humid and dry environments highlights the importance of considering environmental factors in real-world applications.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206073"},"PeriodicalIF":5.3,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824689","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 properties of oscillatory pressure sintered SiC-based ceramics: Influence of load and sliding speed 振荡压力烧结sic基陶瓷的摩擦学性能：载荷和滑动速度的影响

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-08 DOI: 10.1016/j.wear.2025.206074

Huiyu Si , Yifan Yang , Tianbin Zhu , Xiong Liang , Heng Wang , Yawei Li , Zhipeng Xie , Sung-Soo Ryu

{"title":"Tribological properties of oscillatory pressure sintered SiC-based ceramics: Influence of load and sliding speed","authors":"Huiyu Si , Yifan Yang , Tianbin Zhu , Xiong Liang , Heng Wang , Yawei Li , Zhipeng Xie , Sung-Soo Ryu","doi":"10.1016/j.wear.2025.206074","DOIUrl":"10.1016/j.wear.2025.206074","url":null,"abstract":"<div><div>The wear resistance of SiC-based ceramics is a crucial factor influencing their service life when they are used in the field of tribological engineering. Here, the influence of external factors (load and sliding speed) on the tribological properties of SiC-based ceramics prepared by oscillatory pressure sintering was explored together with an analysis of the wear mechanism of such ceramics. As the applied load increased from 20 N to 60 N, the surface roughness of specimens continuously increased. The corresponding wear mechanism underwent a change from plowing and plastic deformation to material fracture and abrasive wear. Furthermore, the wear rate of the specimen with 1 wt% graphene nanosheets (GNPs) and 5 wt% SiC whiskers (SiCw) increased from 3.15 ± 0.05 × 10<sup>−7</sup> mm<sup>3</sup>·N<sup>−1</sup>·m<sup>−1</sup> to 4.23 ± 0.09 × 10<sup>−7</sup> mm<sup>3</sup>·N<sup>−1</sup>·m<sup>−1</sup>. As the sliding speed increased (2–6 m/min), the friction process generated a considerable amount of heat, resulting in an elevated surface temperature of the specimen; a more complete relief structure was formed on the wear surface, reducing the contact area of the specimen and thus enhancing the wear resistance of the specimen. The most favorable tribological performance of SiC-1 wt% GNPs-5 wt% SiCw ceramics in cyclic dry friction was attributed to the self-lubrication effect of GNPs and the enhancement of mechanical properties of SiC-based ceramics.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"574 ","pages":"Article 206074"},"PeriodicalIF":5.3,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844628","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

Nanoscale understanding of the tribological removal behaviors for additive-fabricated Ti6Al4V alloy under the magnetorheological polishing 磁流变抛光下增材制造Ti6Al4V合金摩擦学去除行为的纳米尺度研究

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-08 DOI: 10.1016/j.wear.2025.206071

Chunyu Li , Minghan Yang , Bingsan Chen , Yongchao Xu , Xiaoyu Yan

{"title":"Nanoscale understanding of the tribological removal behaviors for additive-fabricated Ti6Al4V alloy under the magnetorheological polishing","authors":"Chunyu Li , Minghan Yang , Bingsan Chen , Yongchao Xu , Xiaoyu Yan","doi":"10.1016/j.wear.2025.206071","DOIUrl":"10.1016/j.wear.2025.206071","url":null,"abstract":"<div><div>In order to enhance the surface quality of Ti6Al4V workpieces and overcome the problems of work-hardening and ablation phenomena that exist in conventional machining, magnetorheological polishing method is introduced to improve the surface quality of additively molded Ti6Al4V. In this study, the tribological removal behavior of additively fabricated Ti6Al4V alloys at the nanoscale is systematically revealed through molecular dynamics (MD) simulations combined with magnetorheological polishing (MRP) experiments and nano-scratch tests. A joint EAM-Tersoff-Morse potential function model was used to simulate the interfacial interaction between SiC abrasive particles and Ti6Al4V workpieces, and to analyze the effects of sliding parameters on the temperature field, force field, and subsurface damage. The experimental results show that the surface roughness decreases and then increases with increasing pressure, the material removal rate continues to increase with increasing pressure, and the residual stress decreases by 76.75 %.The MD simulation shows that the increase of the abrasive grain sliding depth leads to the increase of the surface atomic displacement, the thickening of the subsurface damage layer, and the decrease of the dislocation density with the increase of the sliding speed. The nano-scratch experiments verified the law of friction increasing with pressure in the simulation, and revealed that the friction coefficient varied nonlinearly at high speeds due to thermal effects. The simulations and experiments are highly consistent with each other in terms of surface roughness, material removal rate and residual stress trends. This study provides a theoretical basis for optimizing the MRP process parameters, which is of great significance in guiding the surface treatment of aerospace precision components and medical implants.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206071"},"PeriodicalIF":5.3,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816770","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

Achieving an effective increase in wear resistance over a wide temperature range for Ti50Zr30Nb10Al10 refractory multi-principal element alloy: The introduction of a robust and deformable α2 phase 实现Ti50Zr30Nb10Al10耐火多主元素合金在宽温度范围内的耐磨性的有效提高：引入坚固且可变形的α2相

IF 5.3 1区工程技术

Wear Pub Date : 2025-04-05 DOI: 10.1016/j.wear.2025.206075

Xin You , Pengyu Lin , Junjie Song , Yin Du , Haifeng Wang , Tao Li , Wei Zhou , Yunfeng Su , Yongsheng Zhang , Litian Hu

{"title":"Achieving an effective increase in wear resistance over a wide temperature range for Ti50Zr30Nb10Al10 refractory multi-principal element alloy: The introduction of a robust and deformable α2 phase","authors":"Xin You , Pengyu Lin , Junjie Song , Yin Du , Haifeng Wang , Tao Li , Wei Zhou , Yunfeng Su , Yongsheng Zhang , Litian Hu","doi":"10.1016/j.wear.2025.206075","DOIUrl":"10.1016/j.wear.2025.206075","url":null,"abstract":"<div><div>The limited wear resistance of multi-principal element alloys (RMPEAs) over a wide temperature range seriously restricts its further development and application. Though introducing a hard phase into the RMPEAs matrix is considered to be a common strategy to relief this contradiction, the brittleness of the hard phase and resulting heterogeneous interfaces often lead to unstable failure under prolonged wear conditions. In this work, a strong and deformable (Ti,Zr)<sub>3</sub>Al-type α2 phase was formed into Ti<sub>50</sub>Zr<sub>30</sub>Nb<sub>10</sub>Al<sub>10</sub> RMPEAs through hot pressing and aging treatments to achieve robust wear performance over a wide temperature range, resulting in decreased wear rates and coefficient of friction of ∼50 % and ∼20 %, respectively. Based on the action of alternating frictional stress, multiple slip systems in the α2 phase are activated at room temperature. The good load-bearing and deformation capabilities of α2 phase are maintained up to 600 °C, thereby providing decreased wear rates form 17.3 × 10<sup>−4</sup> mm<sup>3</sup>/Nm to 9.2 × 10<sup>−4</sup> mm<sup>3</sup>/Nm. At higher temperatures (900 °C), the optimized alloy achieves the lowest wear rate of 0.6 × 10<sup>−4</sup> mm<sup>3</sup>/Nm, which can be attributed to the Hall-Petch strengthening effect introduced by hot pressing and the protection of a dense oxide layer. These observations provide valuable insights for the design of superior wear-resistant RMPAs.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"572 ","pages":"Article 206075"},"PeriodicalIF":5.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799044","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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