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英文中文

Effect of discrete and continuous texture geometries on tool wear and derivative cutting effect during the machining

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-18 DOI: 10.1016/j.wear.2025.205964

Aniket Roushan, Chetan

In modern times, one of the efficient methods for lowering the amount of friction experienced at the tool-chip contact has been the fabrication of textures on the rake face of the tool. In this regard, the textured tools have been fabricated with various geometric texture shapes on tungsten carbide. The textures on the rake face of the tool have been fabricated by using various geometries such as discrete (dimple and hexagonal), continuous (sine wave), and a combination of discrete and continuous textures (mixed). Along with the textured shapes, the effect of variation in texture feature dimension (width or diameter- 40 μm, 80 μm, and 120 μm) on machining output has also been investigated. The developed tool has been employed for the machining of PH 13-8 Mo SS alloy to investigate the wear performance and derivative cutting phenomena. Upon investigation, it has been found that the combination of discrete and continuous textures i.e. mixed textured tool resulted in superior performance in terms of reduction of rake and flank wear. The experimental evidence demonstrates that a variation in the feature dimension of the texture has been a critical factor in the analysis of the derivative cutting phenomenon and the formation of build-up edge. It has been seen that machining operations performed at low speed with a discrete textured (hexagonal) tool having a feature dimension (width/diameter) of 40 μm have reduced the main cutting force up to 12 % as compared with the plain tool. In addition, reductions of 21.4 % and 24.8 %, respectively, have been reported while utilizing a tool with a sine wave texture and mixed texture tool with the same feature dimension.

{"title":"Effect of discrete and continuous texture geometries on tool wear and derivative cutting effect during the machining","authors":"Aniket Roushan, Chetan","doi":"10.1016/j.wear.2025.205964","DOIUrl":"10.1016/j.wear.2025.205964","url":null,"abstract":"<div><div>In modern times, one of the efficient methods for lowering the amount of friction experienced at the tool-chip contact has been the fabrication of textures on the rake face of the tool. In this regard, the textured tools have been fabricated with various geometric texture shapes on tungsten carbide. The textures on the rake face of the tool have been fabricated by using various geometries such as discrete (dimple and hexagonal), continuous (sine wave), and a combination of discrete and continuous textures (mixed). Along with the textured shapes, the effect of variation in texture feature dimension (width or diameter- 40 μm, 80 μm, and 120 μm) on machining output has also been investigated. The developed tool has been employed for the machining of PH 13-8 Mo SS alloy to investigate the wear performance and derivative cutting phenomena. Upon investigation, it has been found that the combination of discrete and continuous textures i.e. mixed textured tool resulted in superior performance in terms of reduction of rake and flank wear. The experimental evidence demonstrates that a variation in the feature dimension of the texture has been a critical factor in the analysis of the derivative cutting phenomenon and the formation of build-up edge. It has been seen that machining operations performed at low speed with a discrete textured (hexagonal) tool having a feature dimension (width/diameter) of 40 μm have reduced the main cutting force up to 12 % as compared with the plain tool. In addition, reductions of 21.4 % and 24.8 %, respectively, have been reported while utilizing a tool with a sine wave texture and mixed texture tool with the same feature dimension.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205964"},"PeriodicalIF":5.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463593","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

On the correlation of erosion initiations using pulsed-jet and whirling-arm testers

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-18 DOI: 10.1016/j.wear.2025.205965

N. Fujisawa , T. Yamagata , K. Fujisawa

In this short communication, the V–N_s curves (V: impact velocity, N_s: number of specific impacts) for the end of incubation period of erosion were measured using a pulsed-jet erosion tester with an aluminum test specimen (A3003), and the results were compared with those of a whirling-arm tester in the literature. The effects of the jet diameter and liquid film thickness on the wall surface were investigated analytically to compare the V–N_s curves obtained from the pulsed-jet tester with those of the whirling-arm tester. The corrected V–N_s curves of the pulsed-jet tester were found to be consistent with those of the whirling-arm tester within experimental uncertainty when the influences of the droplet diameter and liquid film thickness were considered in the analysis. This result indicates that the pulsed-jet tester provides an effective approach for reproducing V–N_s curves similar to those of the whirling-arm tester.

引用次数: 0

Microstructure and self-lubricating property of a novel Al2O3/La2P4O13/MoS2 composite layer in-situ prepared by micro-arc oxidation

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-18 DOI: 10.1016/j.wear.2025.205968

Q. Li, J. Shang, S. Sun

A novel Al₂O₃/La₂P₄O₁₃/MoS₂ composite layer was successfully in–situ prepared on 6082-T6 alloy surface utilizing micro-arc oxidation (MAO) technology by introducing Na₂MoO₄, Na₂S, and C₂H₆LaO₃ into the electrolyte. The microstructures, compositions, morphologies and tribological behavior of the composite layer are characterized by XRD, XPS, SEM, EDS, TEM and UMT. The results show that: with the increase of C₂H₆LaO₃ concentration, the surface roughness changed from 1.447 to 2.588 μm, the porosity changed from 3.79 to 2.45 % and the hardness rises from 737.66 to 1177.41–1260.44 HV₁; the self-lubricating phases La₂P₄O₁₃ and MoS₂ were dispersed between the hard phase Al₂O₃; when the concentration was 5 g/L, the average friction coefficient is reduced by 41.66 % compared with the Al₂O₃/MoS₂ composite layer at 0 g/L. There was no obvious mass or volume changes of coupled body (Si₃N₄ balls) before and after sliding wear. The in-situ formation of MoS₂ and La₂P₄O₁₃ in the MAO layer can have a coordinate effects for improving the compactness, hardness and self-lubricating behavior.

{"title":"Microstructure and self-lubricating property of a novel Al2O3/La2P4O13/MoS2 composite layer in-situ prepared by micro-arc oxidation","authors":"Q. Li, J. Shang, S. Sun","doi":"10.1016/j.wear.2025.205968","DOIUrl":"10.1016/j.wear.2025.205968","url":null,"abstract":"<div><div>A novel Al<sub>2</sub>O<sub>3</sub>/La<sub>2</sub>P<sub>4</sub>O<sub>13</sub>/MoS<sub>2</sub> composite layer was successfully in–situ prepared on 6082-T6 alloy surface utilizing micro-arc oxidation (MAO) technology by introducing Na<sub>2</sub>MoO<sub>4</sub>, Na<sub>2</sub>S, and C<sub>2</sub>H<sub>6</sub>LaO<sub>3</sub> into the electrolyte. The microstructures, compositions, morphologies and tribological behavior of the composite layer are characterized by XRD, XPS, SEM, EDS, TEM and UMT. The results show that: with the increase of C<sub>2</sub>H<sub>6</sub>LaO<sub>3</sub> concentration, the surface roughness changed from 1.447 to 2.588 μm, the porosity changed from 3.79 to 2.45 % and the hardness rises from 737.66 to 1177.41–1260.44 HV<sub>1</sub>; the self-lubricating phases La<sub>2</sub>P<sub>4</sub>O<sub>13</sub> and MoS<sub>2</sub> were dispersed between the hard phase Al<sub>2</sub>O<sub>3</sub>; when the concentration was 5 g/L, the average friction coefficient is reduced by 41.66 % compared with the Al<sub>2</sub>O<sub>3</sub>/MoS<sub>2</sub> composite layer at 0 g/L. There was no obvious mass or volume changes of coupled body (Si<sub>3</sub>N<sub>4</sub> balls) before and after sliding wear. The in-situ formation of MoS<sub>2</sub> and La<sub>2</sub>P<sub>4</sub>O<sub>13</sub> in the MAO layer can have a coordinate effects for improving the compactness, hardness and self-lubricating behavior.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205968"},"PeriodicalIF":5.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452855","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 graphene-reinforced graphite in high-temperature and high-pressure water

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-18 DOI: 10.1016/j.wear.2025.205967

S.H. Liu , T.H. Liang , W.G. Wang , B.J. Zhang , M.K. Lei

It is of great significance to ensure the stability and life of graphite counterparts under severe operating conditions in high-temperature and high-pressure water. In this study, the tribological properties of original graphite and graphene-reinforced graphite against Stellite 12 alloy are investigated on a disc-on-disc configuration under pv factors ranging from 0.2 to 13.0 MPa m/s at applied load p of 900 N with spindle speed v from 100 to 6500 rpm in a 70 °C and 2 MPa water environment, respectively. As the pv factors increase, the wear depth and surface roughness of both graphite are found to be decreased, while the residual compressive stresses on Stellite 12 alloy are elevated, because the friction pairs bear the boundary, mixed and hydrodynamic lubrication regimes, respectively. The pairs of original graphite against Stellite 12 alloy undergo abrasive wear, adhesive wear and fatigue wear simultaneously under the boundary lubrication, whereas the positive obstructing effect of graphene filler on the lamellar graphite being teared, enabling the fragmented abrasive debris to stabilize the vibration of friction counterpart and inhibit the propagation of fatigue wear. Both sets of friction pairs are subjected to fatigue wear under long-term high-cyclic alternating stresses from the water film under the hydrodynamic lubrication, the addition of graphene filler enables a significant increase in the loading capacity of graphite in high-temperature and high-pressure water, as well as a reduction in COF and wear depth.

{"title":"Tribological properties of graphene-reinforced graphite in high-temperature and high-pressure water","authors":"S.H. Liu , T.H. Liang , W.G. Wang , B.J. Zhang , M.K. Lei","doi":"10.1016/j.wear.2025.205967","DOIUrl":"10.1016/j.wear.2025.205967","url":null,"abstract":"<div><div>It is of great significance to ensure the stability and life of graphite counterparts under severe operating conditions in high-temperature and high-pressure water. In this study, the tribological properties of original graphite and graphene-reinforced graphite against Stellite 12 alloy are investigated on a disc-on-disc configuration under <em>pv</em> factors ranging from 0.2 to 13.0 MPa m/s at applied load <em>p</em> of 900 N with spindle speed <em>v</em> from 100 to 6500 rpm in a 70 °C and 2 MPa water environment, respectively. As the <em>pv</em> factors increase, the wear depth and surface roughness of both graphite are found to be decreased, while the residual compressive stresses on Stellite 12 alloy are elevated, because the friction pairs bear the boundary, mixed and hydrodynamic lubrication regimes, respectively. The pairs of original graphite against Stellite 12 alloy undergo abrasive wear, adhesive wear and fatigue wear simultaneously under the boundary lubrication, whereas the positive obstructing effect of graphene filler on the lamellar graphite being teared, enabling the fragmented abrasive debris to stabilize the vibration of friction counterpart and inhibit the propagation of fatigue wear. Both sets of friction pairs are subjected to fatigue wear under long-term high-cyclic alternating stresses from the water film under the hydrodynamic lubrication, the addition of graphene filler enables a significant increase in the loading capacity of graphite in high-temperature and high-pressure water, as well as a reduction in COF and wear depth.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205967"},"PeriodicalIF":5.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512700","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

The novel rapid curing pavement maintenance seal with a low environmental impact: Preparation and performance evaluation

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-14 DOI: 10.1016/j.wear.2025.205919

Qian Chen , Xiang Lan , Anquan Li , Xiaolong Sun , Chaohui Wang

The purpose is to explore innovative applications of polyurethane elastomer in pavement maintenance, and broaden the technical approaches for pavement preventive maintenance. Using polyurethane elastomer as the base material, a novel rapid curing pavement maintenance seal with a low environmental impact was developed. The interlayer bonding performance of the seal under various construction conditions was analyzed. The surface functions of the seal, including skid resistance, abrasion resistance, and waterproof performance, were investigated. The structure and material composition of the polyurethane elastomer maintenance seal were optimized to suit different road conditions. The anti-glare ability of the polyurethane elastomer seal was evaluated. The results indicated that the polyurethane elastomer seal can form a relatively mature interlayer bonding performance within 1 h–3 h after preparation, with a bonding strength ranging from 1.2 MPa to 1.3 MPa. The abrasion value of the polyurethane elastomer seal was less than 200 mg/m². Among them, the seal using emery exhibited the best abrasion resistance, with an abrasion value of only 3–5 mg/m². Texture depth was 0.60–0.66 mm. British pendulum number was 70–82. The water permeability coefficient was 0, indicating excellent waterproof performance. The surface reflectance was 50 cd/m² to 150 cd/m², satisfying the basic requirements for anti-glare ability on pavements and posing no threat to driving safety.

{"title":"The novel rapid curing pavement maintenance seal with a low environmental impact: Preparation and performance evaluation","authors":"Qian Chen , Xiang Lan , Anquan Li , Xiaolong Sun , Chaohui Wang","doi":"10.1016/j.wear.2025.205919","DOIUrl":"10.1016/j.wear.2025.205919","url":null,"abstract":"<div><div>The purpose is to explore innovative applications of polyurethane elastomer in pavement maintenance, and broaden the technical approaches for pavement preventive maintenance. Using polyurethane elastomer as the base material, a novel rapid curing pavement maintenance seal with a low environmental impact was developed. The interlayer bonding performance of the seal under various construction conditions was analyzed. The surface functions of the seal, including skid resistance, abrasion resistance, and waterproof performance, were investigated. The structure and material composition of the polyurethane elastomer maintenance seal were optimized to suit different road conditions. The anti-glare ability of the polyurethane elastomer seal was evaluated. The results indicated that the polyurethane elastomer seal can form a relatively mature interlayer bonding performance within 1 h–3 h after preparation, with a bonding strength ranging from 1.2 MPa to 1.3 MPa. The abrasion value of the polyurethane elastomer seal was less than 200 mg/m<sup>2</sup>. Among them, the seal using emery exhibited the best abrasion resistance, with an abrasion value of only 3–5 mg/m<sup>2</sup>. Texture depth was 0.60–0.66 mm. British pendulum number was 70–82. The water permeability coefficient was 0, indicating excellent waterproof performance. The surface reflectance was 50 cd/m<sup>2</sup> to 150 cd/m<sup>2</sup>, satisfying the basic requirements for anti-glare ability on pavements and posing no threat to driving safety.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"566 ","pages":"Article 205919"},"PeriodicalIF":5.3,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427746","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

Arc erosion mechanism and surface characteristics of TiN particles reinforced Ag based electrical contact materials

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-13 DOI: 10.1016/j.wear.2025.205900

Jun Wang , Zhiguo Li , Huimin Zhang , Youchang Sun , Zhe Wang , Henry Hu , Songtao Liu , Xiaoyun Yuan , Xudong Chen

Electrical contact materials (ECMs) are crucial for ensuring the stability and efficiency of electrical instruments and electronic devices, as they regulate current flow. As an essential component of ECMs, Ag-SnO₂ composite ECMs exhibit excellent conductivity and weld resistance. However, the resistance of materials to arc erosion diminishes as the frequency of arc erosion increases. Herein, titanium nitride (TiN) particles reinforced silver (Ag) based electrical contact materials were synthesized using a combination of high-energy ball milling and spark plasma sintering (SPS) techniques. The results indicated that TiN particles reinforced Ag based electrical contact materials could strengthen the interface bonding, which can dramatically improve the microhardness (up to 145.3 HV), conductivity (up to 68.9 %IACS), density (up to 98 %) and resistance to arc erosion. After 5 × 10⁴ times arc erosion cycles, the mass loss of the Ag-TiN contact material is 0.0125 g, representing approximately 0.19 % of the total mass. Meanwhile, the friction properties of the electric contact materials were evaluated, and the results indicated that the Ag-TiN electric contact materials exhibited superior friction resistance, with an average friction coefficient of 0.8305. Furthermore, the decomposition of TiN ceramic particles under arc energy leads to the formation of highly thermally stable titanium dioxide (TiO₂) dendrites on the contact surface, which mitigates mass loss, effectively reducing arc erosion and extending the contact materials service life.

{"title":"Arc erosion mechanism and surface characteristics of TiN particles reinforced Ag based electrical contact materials","authors":"Jun Wang , Zhiguo Li , Huimin Zhang , Youchang Sun , Zhe Wang , Henry Hu , Songtao Liu , Xiaoyun Yuan , Xudong Chen","doi":"10.1016/j.wear.2025.205900","DOIUrl":"10.1016/j.wear.2025.205900","url":null,"abstract":"<div><div>Electrical contact materials (ECMs) are crucial for ensuring the stability and efficiency of electrical instruments and electronic devices, as they regulate current flow. As an essential component of ECMs, Ag-SnO<sub>2</sub> composite ECMs exhibit excellent conductivity and weld resistance. However, the resistance of materials to arc erosion diminishes as the frequency of arc erosion increases. Herein, titanium nitride (TiN) particles reinforced silver (Ag) based electrical contact materials were synthesized using a combination of high-energy ball milling and spark plasma sintering (SPS) techniques. The results indicated that TiN particles reinforced Ag based electrical contact materials could strengthen the interface bonding, which can dramatically improve the microhardness (up to 145.3 HV), conductivity (up to 68.9 %IACS), density (up to 98 %) and resistance to arc erosion. After 5 × 10<sup>4</sup> times arc erosion cycles, the mass loss of the Ag-TiN contact material is 0.0125 g, representing approximately 0.19 % of the total mass. Meanwhile, the friction properties of the electric contact materials were evaluated, and the results indicated that the Ag-TiN electric contact materials exhibited superior friction resistance, with an average friction coefficient of 0.8305. Furthermore, the decomposition of TiN ceramic particles under arc energy leads to the formation of highly thermally stable titanium dioxide (TiO<sub>2</sub>) dendrites on the contact surface, which mitigates mass loss, effectively reducing arc erosion and extending the contact materials service life.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"566 ","pages":"Article 205900"},"PeriodicalIF":5.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420328","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 data-driven modeling of stochastic wear and degradation of rolls in hot finishing mill

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-13 DOI: 10.1016/j.wear.2025.205926

Shangju Hu , Jianchao Zeng , Xiaohong Zhang , Hui Shi , Guannan Shi , Huadong Qiu

During hot rolling process, the rolls are highly susceptible to wear and degradation, which directly affects the shape and surface quality of the strips. To reflect the wear and degradation behavior of rolls in actual production and to provide a scientific basis for decision-making in their management and maintenance strategies, a research approach integrating mechanistic and data-driven methodologies was employed in this study, considering the stochastic nature of the degradation process. Firstly, a single-task roll wear mechanism model grounded in tribology principles was developed. Subsequently, a multi-task wear mechanism model for a single rolling unit was formulated. Concurrently, a stochastic residual model was introduced to encapsulate the uncertainties inherent in the wear mechanism model. Utilizing actual measured data from a specific steel plant, the parameters for both the mechanistic and stochastic wear models were estimated, their effectiveness and precision were confirmed with an independent dataset, and a comparative analysis was conducted against industry-standard models. The findings reveal that the proposed model outperforms traditional models in predicting roll wear and degradation trends with enhanced accuracy, offering substantial practical application benefits. The integration of the stochastic model establishes a theoretical groundwork for reliability modeling and optimized roll management decision-making.

在热轧过程中，轧辊极易发生磨损和退化，直接影响带材的形状和表面质量。为了反映轧辊在实际生产中的磨损和退化行为，并为其管理和维护策略的决策提供科学依据，考虑到退化过程的随机性，本研究采用了机理和数据驱动相结合的研究方法。首先，根据摩擦学原理建立了单任务轧辊磨损机理模型。随后，建立了单个轧制单元的多任务磨损机理模型。同时，还引入了随机残余模型，以囊括磨损机理模型中固有的不确定性。利用特定钢厂的实际测量数据，对机械磨损模型和随机磨损模型的参数进行了估算，通过独立数据集确认了其有效性和精确性，并与行业标准模型进行了对比分析。研究结果表明，所提出的模型在预测轧辊磨损和退化趋势方面优于传统模型，而且精度更高，具有很大的实际应用优势。随机模型的集成为可靠性建模和优化轧辊管理决策奠定了理论基础。

{"title":"Mechanism data-driven modeling of stochastic wear and degradation of rolls in hot finishing mill","authors":"Shangju Hu , Jianchao Zeng , Xiaohong Zhang , Hui Shi , Guannan Shi , Huadong Qiu","doi":"10.1016/j.wear.2025.205926","DOIUrl":"10.1016/j.wear.2025.205926","url":null,"abstract":"<div><div>During hot rolling process, the rolls are highly susceptible to wear and degradation, which directly affects the shape and surface quality of the strips. To reflect the wear and degradation behavior of rolls in actual production and to provide a scientific basis for decision-making in their management and maintenance strategies, a research approach integrating mechanistic and data-driven methodologies was employed in this study, considering the stochastic nature of the degradation process. Firstly, a single-task roll wear mechanism model grounded in tribology principles was developed. Subsequently, a multi-task wear mechanism model for a single rolling unit was formulated. Concurrently, a stochastic residual model was introduced to encapsulate the uncertainties inherent in the wear mechanism model. Utilizing actual measured data from a specific steel plant, the parameters for both the mechanistic and stochastic wear models were estimated, their effectiveness and precision were confirmed with an independent dataset, and a comparative analysis was conducted against industry-standard models. The findings reveal that the proposed model outperforms traditional models in predicting roll wear and degradation trends with enhanced accuracy, offering substantial practical application benefits. The integration of the stochastic model establishes a theoretical groundwork for reliability modeling and optimized roll management decision-making.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205926"},"PeriodicalIF":5.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445199","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

Characterization of the abrasion behavior, particle morphology, and size distribution of rubber composites with various plasticizer structures

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-09 DOI: 10.1016/j.wear.2025.205904

Shanshan Chen , Qi Zhang , Xiaohui Wu , Yonglai Lu , Feng Wang , Sheng Wei , Lijie Zhang

Tire treads made of rubber composites generate numerous abrasion particles during friction. However, the morphologies and formation mechanisms of these abrasion particles remain poorly understood. In this study, we developed a self-made abrasion tester to create and collect abrasion particles, focusing on weight loss, size, morphology, and distribution of the abrasion particles. Results showed that compared with commercial plasticizers, all tested resins reduced abrasion loss by 30 % and produced more small-grained abrasion particles. For example, rubber samples added with polystyrene resins and C5/C9 hydrogenated petroleum resins had lower abrasion loss than that of rubber added with treated distillate aromatic extract oil. Dicyclopentadiene resin yielded the least abrasion, whereas C9 hydrogenated petroleum resin produced the most. Hydrogenated resin (HR) resulted in the highest quantity of small abrasion particles and lowest large particles. Different plasticizer structures influenced the morphology of abrasion particles. Within the particle size range of 18–150 μm, the abrasion particles of each sample were granular. Meanwhile, in the larger particle size ranges of 150–300 μm and 300–600 μm (600–1000 μm), all resins, particularly HR, exhibited an increased curing degree compared to treated distillate aromatic extract. For particles over 1000 μm, all resins resulted in smoother surfaces on the abrasion particles.

{"title":"Characterization of the abrasion behavior, particle morphology, and size distribution of rubber composites with various plasticizer structures","authors":"Shanshan Chen , Qi Zhang , Xiaohui Wu , Yonglai Lu , Feng Wang , Sheng Wei , Lijie Zhang","doi":"10.1016/j.wear.2025.205904","DOIUrl":"10.1016/j.wear.2025.205904","url":null,"abstract":"<div><div>Tire treads made of rubber composites generate numerous abrasion particles during friction. However, the morphologies and formation mechanisms of these abrasion particles remain poorly understood. In this study, we developed a self-made abrasion tester to create and collect abrasion particles, focusing on weight loss, size, morphology, and distribution of the abrasion particles. Results showed that compared with commercial plasticizers, all tested resins reduced abrasion loss by 30 % and produced more small-grained abrasion particles. For example, rubber samples added with polystyrene resins and C5/C9 hydrogenated petroleum resins had lower abrasion loss than that of rubber added with treated distillate aromatic extract oil. Dicyclopentadiene resin yielded the least abrasion, whereas C9 hydrogenated petroleum resin produced the most. Hydrogenated resin (HR) resulted in the highest quantity of small abrasion particles and lowest large particles. Different plasticizer structures influenced the morphology of abrasion particles. Within the particle size range of 18–150 μm, the abrasion particles of each sample were granular. Meanwhile, in the larger particle size ranges of 150–300 μm and 300–600 μm (600–1000 μm), all resins, particularly HR, exhibited an increased curing degree compared to treated distillate aromatic extract. For particles over 1000 μm, all resins resulted in smoother surfaces on the abrasion particles.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"568 ","pages":"Article 205904"},"PeriodicalIF":5.3,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471623","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 wear resistance of yttria-stabilized tetragonal zirconia in air and high vacuum environments by multi-cycle annealing

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-08 DOI: 10.1016/j.wear.2025.205903

Zeqing Li , Honghong Zhang , Liang Li , Chongpu Zhai , Shubao Shao , Siyang Song , Guang'an Zhang , Minglong Xu

To improve the wear resistance of yttria-stabilized tetragonal zirconia polycrystal (TZP), an effective multi-cycle annealing method was proposed. The effects of multi-cycle annealing temperature on the surface morphology, microstructure and mechanical properties of TZP were investigated. The dry friction and wear behaviors of original and annealed TZP against TZP balls both in air and high vacuum conditions were further explored. During multi-cycle annealing at 1100–1300 °C, recrystallization takes place in TZP polished surface, inducing an average surface grain size ranging from 0.11 μm to 0.21 μm. With the rise of annealing temperature, the zirconia transforms from monoclinic phase into tetragonal phase, and the surface machining traces of TZP gradually fade away, while the surface grain morphology becomes prominent. However, when the annealing temperature reaches to 1500 °C, zirconia grains excessively grow to 0.58 μm, resulting in an evident reduction in mechanical properties. The Y-TZP annealed at 1300 °C (TZP1300) has the optimal wear resistance. In comparison with the original TZP, its average wear rates in air and high vacuum environments significantly decreased by about 65.7 % and 70.7 %, respectively. This is mainly attributed to the increase of tetragonal phase zirconia, and the appropriate growth of surface grains, which not only maintains the excellent mechanical properties, but also promotes the repairing of surface processing defects.

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Study on the Fretting and sliding composite wear behavior of Ni-Al bronze under seawater lubrication

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear

Pub Date : 2025-02-07 DOI: 10.1016/j.wear.2025.205901

Zhiwen Yue , Po Zhang , Wenlong Li , Mao Li , Zhaobing Cai , Le Gu

Controllable pitch propeller blade bearings experience fretting-sliding composite wear in seawater conditions, yet the underlying mechanisms remain unclear. This study investigates the effects of varying Sliding/Fretting ratios and loads on the wear process. Findings reveal that as the Sliding/Fretting ratio decreases, the wear rate decreases while the average friction coefficient increases. Corrosion can promote the formation of cracks on the material surface. As the load increases, additional cracks and exfoliation become evident at the center of the worn surface, while more grooves are observed in the edge region. The increase in load results in an expansion of the contact area and stress concentration zones, leading to a more extensive area and greater depth of damage to the substrate surface.

引用次数: 0

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