Tribology and Materials最新文献_第4页

Enhancing of ZA-27 alloy wear characteristics by addition of small amount of SiC nanoparticles and its optimisation applying Taguchi method 添加少量SiC纳米颗粒增强ZA-27合金磨损性能及其田口法优化

Tribology and Materials Pub Date : 1900-01-01 DOI: 10.46793/tribomat.2022.014

A. Vencl, Blaža Stojanović, Ranka Gojković, S. Klančnik, Á. Czifra, K. Jakimovska, M. Harničárová

{"title":"Enhancing of ZA-27 alloy wear characteristics by addition of small amount of SiC nanoparticles and its optimisation applying Taguchi method","authors":"A. Vencl, Blaža Stojanović, Ranka Gojković, S. Klančnik, Á. Czifra, K. Jakimovska, M. Harničárová","doi":"10.46793/tribomat.2022.014","DOIUrl":"https://doi.org/10.46793/tribomat.2022.014","url":null,"abstract":"The objective of this work was to investigate the influence of the addition of a small amount of SiC nanoparticles on the mechanical characteristics and wear resistance of ZA-27 alloy. The ZA-27 alloy-based nanocomposites were produced by a relatively cheap compocasting process preceded by mechanical alloying. Reinforcing elements were the silicon carbide (SiC) nanoparticles with an average size lower than 50 nm and in very small amounts of 0.2, 0.3 and 0.5 wt. %. Wear tests were realized on a block-on-disc tribometer under lubricated sliding conditions, at two sliding speeds (0.25 and 1 m/s), two normal loads (40 and 100 N) and a sliding distance of 1000 m. Optimisation of the SiC amount was performed by applying the Taguchi method, showing that the SiC amount of 0.5 wt. % is optimal for the given testing conditions. Prediction of the results and wear maps were also conducted. The analysis of variance showed that the SiC amount has the greatest influence on wear rate (70.8 %), followed by the normal load (19.8 %), and the sliding speed (3.9 %), while the influences of all interactions between these factors did not have any significant influence.","PeriodicalId":140630,"journal":{"name":"Tribology and Materials","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116347667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Tribological performance of thermal sprayed coatings under abrasive conditions 磨料条件下热喷涂涂层的摩擦学性能

Tribology and Materials Pub Date : 1900-01-01 DOI: 10.46793/tribomat.2023.003

{"title":"Tribological performance of thermal sprayed coatings under abrasive conditions","authors":"","doi":"10.46793/tribomat.2023.003","DOIUrl":"https://doi.org/10.46793/tribomat.2023.003","url":null,"abstract":"In this work, the tribological behaviour of thermally sprayed titanium and chromium ceramic-based coatings was investigated under abrasive conditions. Their structure was studied by a scanning electron microscope (SEM), while their hardness was evaluated using a microhardness tester. To study the strength of these ceramic coatings under abrasion conditions, reciprocating sliding experiments were carried out in a high-precision (10 mN resolution, 1000 Hz data acquisition) pin-on-disk apparatus and by using a Ø6 mm corundum ball to generate high contact pressures (1.5 GPa). To thoroughly investigate the friction evolution of the tribo-system, three-dimensional mapping of the tangential friction forces (triboscopy) was performed. Following the abrasion experiments, the wear of these coatings was measured using confocal microscopy. The obtained friction and wear results were compared to state-of-the-art materials and coatings that are currently being used in various industrial applications. From this comparison, it was found that the titanium and chromium ceramic-based coatings have comparable if not better tribological properties for the given conditions. The main wear mechanism was mainly two-body abrasion due to the surface roughness of the counter-material, as well as three-body abrasion due to the formation of debris at the interface.","PeriodicalId":140630,"journal":{"name":"Tribology and Materials","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122775946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge 等离子体辉光放电中氮化钛合金VT5试样的摩擦学特性

Tribology and Materials Pub Date : 1900-01-01 DOI: 10.46793/tribomat.2022.013

A. V. Sagalovych, V. Sagalovych, V. Popov, S. Dudnik, O. Olijnyk

{"title":"Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge","authors":"A. V. Sagalovych, V. Sagalovych, V. Popov, S. Dudnik, O. Olijnyk","doi":"10.46793/tribomat.2022.013","DOIUrl":"https://doi.org/10.46793/tribomat.2022.013","url":null,"abstract":"The effect of nitriding of VT5 alloy (3.7115) in the plasma of a glow discharge excited in a hollow cathode on its tribological characteristics in pairs with different materials in jet fuel TS-1 and under dry sliding conditions has been studied. For research and tribological tests, samples of VT5 alloy were nitrided in the plasma of a glow discharge excited in a hollow cathode at a temperature of 975 ± 15 °C and a pressure of 58 ± 2 Pa in a nitrogen-argon gas mixture with a nitrogen content of 78 vol. %. Tribological tests were performed on a friction machine 2070 SMT-1 according to the scheme \"cube-roller\". Tests under conditions of sliding with jet fuel TS-1 were performed at a load of 200 N. The sliding speed during the tests was 1.3 m/s, and the test time was 75 s. The test under dry sliding conditions was carried out at a load of 100 N and a sliding speed of 0.785 m/s. The test time was 30 minutes. It is shown that the nitrided VT5 alloy in friction pairs with several materials has rather low wear values (≤ 2.26 × 10–6 mm3/Nm), as well as a coefficient of friction at the level of 0.08 to 0.12.","PeriodicalId":140630,"journal":{"name":"Tribology and Materials","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131200001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Gas metal arc welding of metal-polymer-metal sheets 金属-聚合物-金属薄板的气体保护焊

Tribology and Materials Pub Date : 1900-01-01 DOI: 10.46793/tribomat.2022.008

S. Baloš, M. Dramićanin, P. Janjatović

引用次数: 2

Corrosion degradation of aluminium alloys using a computational framework 基于计算框架的铝合金腐蚀退化

Tribology and Materials Pub Date : 1900-01-01 DOI: 10.46793/tribomat.2022.019

Zaigham Saeed Toor, Muhammad Moaaz Zafar

{"title":"Corrosion degradation of aluminium alloys using a computational framework","authors":"Zaigham Saeed Toor, Muhammad Moaaz Zafar","doi":"10.46793/tribomat.2022.019","DOIUrl":"https://doi.org/10.46793/tribomat.2022.019","url":null,"abstract":"The paper describes the corrosion based degradation of aluminium alloys using an analytical and numerical framework. The corrosion rate was calculated using analytical equations for aluminium sheets subjected to a corrodent. Parametric analysis for the pit morphology, diameter, depth and distribution on the plate was conducted using finite element analysis. A comparison between elliptical and circular pits of the same area was also made for stress magnification using numerical analysis. It was observed that the stress generated at constant load when a specimen corrodes due to pitting is directly proportional to the pit diameter and pit depth. Zigzag pit morphologies due to the combined effect of mechanical degradation and corrosion have the highest stress at the corners of the pattern, while circular pits have the highest stress at the centre of the pit. The zigzag pit morphology has more detrimental effects than circular pits. For multiple distributed pits, the pits closer to the specimen edges exhibit higher stress values than those near the centre of the specimen. The effect of multiple or quantitatively increased number of pits having smaller geometric properties has a more detrimental effect than a single pit with larger geometric attributes.","PeriodicalId":140630,"journal":{"name":"Tribology and Materials","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121864349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3