IF 5.3 1区工程技术

Wear Pub Date : 2024-08-16 DOI: 10.1016/j.wear.2024.205549

Haisheng Li , Yefei Li , Qiaoling Zheng , Huicong Zhao , Dawei Yi , Yihui Wang , Peipei He , Yanan Chen

引用次数: 0

Effect of surface microstructure spacing on the cavitation erosion process of stainless steel 表面微观结构间距对不锈钢气蚀过程的影响

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-15 DOI: 10.1016/j.wear.2024.205542

Q.N. Ren , H.X. Hu , Y.G. Zheng

{"title":"Effect of surface microstructure spacing on the cavitation erosion process of stainless steel","authors":"Q.N. Ren , H.X. Hu , Y.G. Zheng","doi":"10.1016/j.wear.2024.205542","DOIUrl":"10.1016/j.wear.2024.205542","url":null,"abstract":"<div><p>Fabricating microstructures on the surface is an innovative method to mitigate cavitation erosion (CE), but there are few studies focus on the effects and mechanisms of microstructure spacing on CE performance. This study has prepared a regular dot array-shaped microstructure with different spacings on the surface of samples. The CE experiments were carried out on both the microstructured samples and smooth samples through a magnetostrictive-vibration cavitation facility. Mass loss measurement and microscopic morphology were utilized to reveal CE characteristics. Numerical simulation was used to study the parameters of the flow field. The results clearly show that the microstructure spacing of 0.25 mm, 0.50 mm, and 1.00 mm samples can improve CE resistance. On these microstructured surfaces, the volume fraction of vapor is reduced and the bubbles move away from it. However, when the microstructure spacing enlarges to 1.50 mm, the damage inside the microstructure groove increases, which will reduce the CE resistance of the materials. As the spacing increases, the volume fraction of vapor on the sample surfaces will increase, and the bubbles in the microstructure groove will congregate, resulting in increasing damage. The research provides the dimensional basis for designing cavitation-resistant surface microstructures.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002064","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

Effects of excitation parameters on fretting wear and corrosion of 316L stainless steel under random impact-sliding condition 激励参数对随机冲击-滑动条件下 316L 不锈钢摩擦磨损和腐蚀的影响

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205541

Xu Ma , Wenjie Pei , Wei Tan , Guorui Zhu

{"title":"Effects of excitation parameters on fretting wear and corrosion of 316L stainless steel under random impact-sliding condition","authors":"Xu Ma , Wenjie Pei , Wei Tan , Guorui Zhu","doi":"10.1016/j.wear.2024.205541","DOIUrl":"10.1016/j.wear.2024.205541","url":null,"abstract":"<div><p>In heat exchanger applications, the random vibration due to fluid excitation can cause mechanical wear between tubes and supports. In corrosive environments, the synergy between wear and corrosion can make wear more severe. Therefore, this paper focused on the effects of excitation amplitude and excitation force ratio (drag force/lift force) on fretting wear and corrosion of 316L stainless steel under random impact-sliding conditions. The results showed that as the excitation parameters increased, the friction coefficient and total wear amount would increase, the open circuit potential (OCP) decreased and the polarization curve self-corrosion potential shifted negatively. All synergistic coefficients in this paper were greater than 1, indicating that there was an obvious positive synergy between wear and corrosion. In the fretting wear and corrosion process, pure wear always played a dominant role. Under impact-sliding conditions, as the excitation force increased, the rate of wear-promoted corrosion increased from 3.0 × 10<sup>−7</sup> to 2.0 × 10<sup>−6</sup> g/h, an increase of 6.67 times. However, the rate of corrosion-promoted wear decreased from 1.1 × 10<sup>−6</sup> to 2.0 × 10<sup>−7</sup> g/h, a decrease of 5.5 times, showing a certain self-limiting property. The total synergy rose slowly with the increase of excitation parameters. The wear mechanism of materials under impact is characterized by adhesive wear, while under impact-sliding conditions, the wear mechanism involves abrasive wear and corrosion wear.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141984831","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 effect of grits interference on materials removal mechanism during scratching process of silicon carbide 碳化硅划痕过程中砂粒干涉对材料去除机理的影响

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205527

Pei Chen , Kunzhou Wu , Rui Pan , Fei Qin

{"title":"The effect of grits interference on materials removal mechanism during scratching process of silicon carbide","authors":"Pei Chen , Kunzhou Wu , Rui Pan , Fei Qin","doi":"10.1016/j.wear.2024.205527","DOIUrl":"10.1016/j.wear.2024.205527","url":null,"abstract":"<div><p>Silicon carbide (SiC) as a difficult-to-process material is hard to achieve ductile grinding completely, and is likely to occur brittle breakage with low processing efficiency, leading to its low performance, therefore, it is necessary to study its removal mechanism to improve the processing quality. The removal mechanism of single grit cutting is well understood. In the real processing of SiC, there are multiple grits at different positions to remove the materials simultaneously, but the phenomenon of materials removal by multiple grits cannot be observed separately. In order to clarify the interference behavior of neighbored grits, current study conducted a neighbored scratch experiment under varied force in sequence. The experiment evidently revealed the deformation, pits, fracture morphology and removal modes under different interference conditions. Since in-situ monitor of materials removal is unable to be realized, a numerical model with different scratch intervals by coupling the smoothed particle hydrodynamics (SPH) and ﬁnite element method (FEM) was used to understand the material damage and stress distribution. Based on the observation from experimental and SPH-FEM results, a theoretical model of neighbored scratch stress field is established to explain the mechanism from plastic and fracture mechanics. From the model, the size of the plastic zone and the interval between the neighbored plastic zone are critical to control the interference mode. The interference mode affects the distribution of stress field and realizes the enhancement effect of material removal. Therefore, the materials removal model could be adopted to control the grinding efficiency and quality in industry.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142012706","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 the tribological behaviors for 4H–SiC substrate under different lubrication conditions 不同润滑条件下 4H-SiC 衬底的摩擦学行为研究

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205537

Yuqi Zhou, Kezhong Xu, Weishan Lv, Yuhan Gao, Fulong Zhu

{"title":"Investigation of the tribological behaviors for 4H–SiC substrate under different lubrication conditions","authors":"Yuqi Zhou, Kezhong Xu, Weishan Lv, Yuhan Gao, Fulong Zhu","doi":"10.1016/j.wear.2024.205537","DOIUrl":"10.1016/j.wear.2024.205537","url":null,"abstract":"<div><p>Lubrication conditions are an important factor affecting both the machining efficiency and quality of 4H–SiC. To investigate the tribological behaviors under different lubrication conditions, a series of scratching experiments are conducted under different loads and environments. The X-ray photoelectron spectroscopy (XPS) surveys and atomistic simulations are used to explain the different tribological behaviors. Both experimental and simulation results show that liquid lubrication can significantly reduce the coefficient of friction (COF) and minimize structural damage. Compared to pure water, the H<sub>2</sub>O<sub>2</sub> solution is more conducive to the oxidation of SiC atoms and the modification of tribological behaviors. However, the difference in tribological behaviors between H<sub>2</sub>O<sub>2</sub> solution and pure water diminishes as the load increases. The XPS surveys show that the liquids lead to higher-order oxidized species of SiC atoms, such as Si<sub>4</sub>C<sub>4-x</sub>O<sub>2</sub> and Si-O<sub>x</sub>-C<sub>y</sub>, which are also observed in the simulation results. It is shown that the oxidized species can reduce the direct bonding between SiC and diamond indenter, which is an important reason for the lower COFs in the liquids. Since the liquids can reduce the direct bonding and mechanical interaction between 4H–SiC and diamond, the material removal rate is much lower under lubrication conditions.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964054","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 comprehensive sliding wear prediction method for planetary roller screw mechanism 行星滚柱丝杠机构的综合滑动磨损预测方法

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205536

Mingcai Xing , Shuo Liu , Yi Cui , Jinquan Xu , Zhaohui Xu , Lining Gao

引用次数: 0

The braking performance and failure mechanism of copper-based brake pads during repeated emergency braking at 400 km/h 时速 400 公里反复紧急制动时铜基刹车片的制动性能和失效机理

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205532

Peng Zhang , Dongbin Wei , En Mei , Bin Xie , Yuanchen Liang , Xiangying Ding , Lin Zhang , Xuanhui Qu

{"title":"The braking performance and failure mechanism of copper-based brake pads during repeated emergency braking at 400 km/h","authors":"Peng Zhang , Dongbin Wei , En Mei , Bin Xie , Yuanchen Liang , Xiangying Ding , Lin Zhang , Xuanhui Qu","doi":"10.1016/j.wear.2024.205532","DOIUrl":"10.1016/j.wear.2024.205532","url":null,"abstract":"<div><div>Copper-based brake pads have played a pivotal role in the braking systems of commercial high-speed trains travelling at speeds ranging from 200 to 350 km/h. In this study, the braking performance and friction and wear mechanism of copper-based brake pads at 400 km/h were further evaluated using a full-scale dynamometer. The results show that under repeated emergency braking conditions at 400 km/h, the mean friction coefficient can be maintained at about 0.3 and remains stable within six braking cycles. Subsequently, a fade phenomenon in the mean friction coefficient emerges accompanied by a significant increase in braking distance, while the mean wear loss is relatively high throughout the entire testing process. Microstructural characteristics of the friction film and matrix indicate that strong oxidation plays an important role in the failure process of the brake pads. The friction film primarily composed of oxides exhibits numerous defects, which are susceptible to peeling off during braking, thereby compromising wear resistance. Additionally, as the braking cycles accumulate, oxidation gradually invades and weakens the matrix, leading to violent migration of the copper-rich friction film across the friction interfaces and resulting in the deterioration of friction performance. This work provides valuable insights into the failure behavior of copper-based brake pads at higher braking speeds and can provide potential direction for further improving their performance.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322498","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

Wear performance of ZrO2 reinforced stellite 6 matrix coatings prepared by laser cladding at elevated temperature 高温下激光熔覆制备的 ZrO2 增强人造卫星 6 基体涂层的磨损性能

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205539

Gongjun Cui , Haotian Cui , Wuchen Zhang , Xiaoqing Yan , Junxia Li , Ziming Kou

{"title":"Wear performance of ZrO2 reinforced stellite 6 matrix coatings prepared by laser cladding at elevated temperature","authors":"Gongjun Cui , Haotian Cui , Wuchen Zhang , Xiaoqing Yan , Junxia Li , Ziming Kou","doi":"10.1016/j.wear.2024.205539","DOIUrl":"10.1016/j.wear.2024.205539","url":null,"abstract":"<div><p>In order to modify the wear resistance of Stellite 6 superalloy as wear resistant coating at room temperature-1000 °C, the different contents (1.0, 2.5 and 4.0 wt%) of ZrO<sub>2</sub> reinforced Stellite 6 matrix coatings were fabricated over the Inconel 718 nickel alloy substrate by laser cladding technology. The microstructure, hardness and high-temperature wear behavior of Stellite 6 matrix coatings with ZrO<sub>2</sub> was systematically studied. The sliding wear test were done using a ball-on-disk tribometer against Si<sub>3</sub>N<sub>4</sub> at room temperature-1000 °C. The results showed that the ZrO<sub>2</sub> showed obvious fine-grain strengthening and dispersion strengthening effect. The hardness of coatings reinforced by ZrO<sub>2</sub> were 470–540 Hv. A critical valve of ZrO<sub>2</sub> content was existed for the wear performance of Stellite 6 matrix coatings. The coating with 2.5 wt% ZrO<sub>2</sub> had the desirable wear resistance, and the wear rate was in the order of 10<sup>−5</sup> mm<sup>3</sup>/N.m. This was attributed to the high microhardness and the formation of solid lubricants, as well as the friction film on the sliding surfaces.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979796","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

Impact of applied loads on wear mechanisms in H13 steel at various preheating temperatures during laser powder bed fusion additive manufacturing 激光粉末床熔融增材制造过程中不同预热温度下施加载荷对 H13 钢磨损机制的影响

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-10 DOI: 10.1016/j.wear.2024.205538

Huajing Zong , Nan Kang , Mohamed El Mansori

{"title":"Impact of applied loads on wear mechanisms in H13 steel at various preheating temperatures during laser powder bed fusion additive manufacturing","authors":"Huajing Zong , Nan Kang , Mohamed El Mansori","doi":"10.1016/j.wear.2024.205538","DOIUrl":"10.1016/j.wear.2024.205538","url":null,"abstract":"<div><p>In laser powder bed fusion (LPBF), processed H13 tooling has a broad application prospect in the mold and die industry. In practice, however, it is often impossible to obtain hot wear resistance and compressive residual stresses which constrain its development, affecting hence the wear performance and service life. Under these conditions, substrate preheating is an effective way to reduce thermal stress and defects of H13 for tooling applications. This research paper emphasizes the main characteristics of preheating temperature and its chief induced properties on microstructure and wear behavior of LPBF-processed H13 steel. The elevated preheating temperature altered the microstructure, increasing hardness and wear resistance. Under low applied loads, better wear resistance was attributed to high hardness and tribo-oxide layer formation. Whereas under high applied loads, it was dominated by the increased hardness due to strain hardening.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S004316482400303X/pdfft?md5=0aad3925ee01850ef6e4418b8138af6a&pid=1-s2.0-S004316482400303X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High temperature tribological properties of additively manufactured WC reinforced CuAl7–W composites 添加剂制造的 WC 增强 CuAl7-W 复合材料的高温摩擦学特性

IF 5.3 1区工程技术

Wear Pub Date : 2024-08-08 DOI: 10.1016/j.wear.2024.205535

Evgeny Moskvichev, Nikolay Shamarin, Nickolai Savchenko

引用次数: 0

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