Bulletin of Materials Science最新文献_第2页

Comparative analysis of corrosion resistance in Ni-, Cu- and Co-based alloys in synthetic mine water 镍、铜、钴基合金在合成矿井水中耐蚀性的比较分析

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-29 DOI: 10.1007/s12034-025-03458-7

Silas I Hango, Lesley A Cornish, Lesley H Chown

{"title":"Comparative analysis of corrosion resistance in Ni-, Cu- and Co-based alloys in synthetic mine water","authors":"Silas I Hango, Lesley A Cornish, Lesley H Chown","doi":"10.1007/s12034-025-03458-7","DOIUrl":"10.1007/s12034-025-03458-7","url":null,"abstract":"<div>To address the corrosion of mild steel in aggressive mine water environments, nickel-chromium-iron (Hastelloy® G30), copper-nickel-tin (ToughMet® 3), and cobalt-chromium-tungsten (Stellite® 6B) alloys were evaluated for their corrosion resistance. The study examined their behaviour in synthetic mine water at pH levels 6, 3 and 1 using potentiodynamic polarisation, alongside microstructural, hardness, and X-ray diffraction (XRD) analyses. Hastelloy® G30 had equiaxed γ grains with Cr3C2 precipitates, ToughMet® 3 displayed large, irregular grains, and Stellite® 6B showed γ grains with Cr3C2 at boundaries and twinning. Hastelloy® G30 and Stellite® 6B demonstrated active-passive transitions with localized corrosion, while ToughMet® 3 showed pseudo-passivation with severe pitting across all pH levels. Hastelloy® G30 achieved the lowest corrosion rates at pH 6 (0.63 ± 0.01 µm·y–1) and pH 3 (0.74 ± 0.05 µm·y–1) but performed poorly at pH 1 (7.75 ± 0.64 µm·y–1), with a hardness of 180 ± 10 HV2. Stellite® 6B had low corrosion rates at pH 3 (1.32 ± 0.34 µm·y–1) and pH 1 (5.61 ± 1.13 µm·y–1), with a hardness of 368 ± 13 HV2. ToughMet® 3 showed high corrosion rates, particularly at pH 1 (118.78 ± 8.00 µm·y–1). Stellite® 6B is the most promising alternative for harsh mining environments, offering optimal hardness and corrosion resistance.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","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 pH and fluoride on the electrochemical behaviour of titanium and its anodic oxide film in artificial saliva: investigation by atomic force microscopy, energy dispersive spectroscopy, electrochemical impedance spectroscopy and scanning electron microscopy pH和氟化物对人工唾液中钛及其阳极氧化膜电化学行为的影响：原子力显微镜、能量色散谱、电化学阻抗谱和扫描电镜研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-26 DOI: 10.1007/s12034-025-03461-y

A S Mogoda, Reham H Tammam

{"title":"Effects of pH and fluoride on the electrochemical behaviour of titanium and its anodic oxide film in artificial saliva: investigation by atomic force microscopy, energy dispersive spectroscopy, electrochemical impedance spectroscopy and scanning electron microscopy","authors":"A S Mogoda, Reham H Tammam","doi":"10.1007/s12034-025-03461-y","DOIUrl":"10.1007/s12034-025-03461-y","url":null,"abstract":"<div>The growth of the pre-immersion and anodic surface oxide films on titanium was found to be influenced by the pH of the saliva using open-circuit potential (Eocp), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. It was found that the titanium's Eocp increased with time as the metal was immersed in saliva with different pH values, from acidic to alkaline. This suggests that the titanium's pre-immersion oxide coating grew in these solutions. Furthermore, the EIS data showed that the oxide film resistances of both anodic and pre-immersion films increased with the saliva's pH, although anodic films did so faster than the pre-immersion films. Even though titanium's pre-immersion coating grows in neutral saliva that contains fluoride ions (F– ions), the corrosion resistance of the metal diminishes as the concentration of these ions rises because of their aggression. The results of potentiodynamic polarization demonstrated that the rate of corrosion of the titanium surface was reduced by both an increase in pH and a decrease in fluoride ion concentration in saliva. The resistance of titanium's pre-immersion layer increased when the immersion period was raised to 17 days in saliva containing 0.005 M F– ions at pH 6.34. The titanium surface was examined using scanning electron microscopy (SEM), and it was shown that when the pH of saliva increases, a greater percentage of the faults and notches on the growing pre-immersion oxide layer are repaired and healed. Additionally, the atomic force microscopy (AFM) data demonstrated that the titanium's surface roughness increases with the concentration of F– ions in saliva due to their corrosive action. Energy dispersive spectroscopy (EDS) revealed that a titanium oxide layer was formed when titanium was submerged in artificial saliva.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144896951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural, magnetic and electrical studies on Fe-based doubly ordered perovskites NaYFeWO6 and NaHoFeWO6 铁基双有序钙钛矿NaYFeWO6和NaHoFeWO6的结构、磁性和电学研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-26 DOI: 10.1007/s12034-025-03470-x

P N RAVI SHANKAR, S MANJUNATHA, A SUNDARESAN

引用次数: 0

Demonstration of a freely positionable fibre-optic coupled probe for SERS-based sensing of an explosive analyte over a Ag nanopyramid substrate fabricated by nanoimprint lithography 一种可自由定位的光纤耦合探针，用于在纳米压印技术制备的银纳米金字塔衬底上对爆炸性分析物进行sers传感

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-26 DOI: 10.1007/s12034-025-03464-9

Preeti Garg, Rakesh S Moirangthem, Anindita Das

引用次数: 0

Sustainable sandwich plates: investigating the dynamic and tensile properties of jute fibre-reinforced face layers with TiO2-infused tea waste epoxy cores 可持续夹层板：研究黄麻纤维增强面层与注入二氧化钛的茶废环氧树脂芯的动态和拉伸性能

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-20 DOI: 10.1007/s12034-025-03450-1

Dhaneshwar Prasad Sahu, Ramyaranjan Das, Sukesh Chandra Mohanty

{"title":"Sustainable sandwich plates: investigating the dynamic and tensile properties of jute fibre-reinforced face layers with TiO2-infused tea waste epoxy cores","authors":"Dhaneshwar Prasad Sahu, Ramyaranjan Das, Sukesh Chandra Mohanty","doi":"10.1007/s12034-025-03450-1","DOIUrl":"10.1007/s12034-025-03450-1","url":null,"abstract":"<div>This study presents an experimental and numerical investigation of the dynamic behaviour of sandwich plate consists of jute fibre-reinforced face layers and TiO2-incorporated tea waste epoxy core layers. The core layers are reinforced with varying amounts of weight percentages of TiO2 nanofiller (0%, 1%, 1.5% and 2%) to assess their impact on the tensile strength and free vibration responses. Tensile properties are evaluated using uniaxial tensile tests according to the ASTM D 3039 standard. The natural frequencies of the sandwich plates are obtained experimentally through experimental modal analysis using a fast fourier transform (FFT) analyser with PULSE Lab software (Bruel & Kjaer). These experimental findings are validated against numerical results obtained from the finite element software ABAQUS, where material properties are derived from the tensile tests are used as inputs. Additionally, numerical simulations are conducted to explore the effects of varying boundary conditions, aspect ratios, core thicknesses, face l ayer thickness ratios, and ply orientations (symmetric and antisymmetric) on the dynamic behaviour of the sandwich plates. Comparison with published literature confirms the accuracy and reliability of the proposed sandwich structures. The results provide insights into optimizing the dynamic performance of jute fibre-reinforced composite structures with sustainable tea waste-based epoxy cores for lightweight engineering applications. The optimum performance was observed at 2 wt% TiO2 loading, which showed the best compromise between improved tensile strength and enhanced vibration damping without agglomeration effects seen at higher concentrations.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Investigation of dual-band bandpass filter inspired by a pair of square coupled interlinked asymmetric tapered metamaterial resonator for X-band microwave applications 修正：x波段微波用方形耦合非对称锥形超材料谐振器双带通滤波器的研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-18 DOI: 10.1007/s12034-025-03460-z

Ahmed Yacine Rouabhi, Mohammed Berka, Amina Benadaoudi, Zoubir Mahdjoub

引用次数: 0

Machine learning-based prediction of dynamic mechanical properties for 3D-printed PETG specimens 基于机器学习的3d打印PETG样品动态力学性能预测

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-14 DOI: 10.1007/s12034-025-03467-6

Vamsi Inturi, M Indra Reddy, Pavan Kumar Penumakala

{"title":"Machine learning-based prediction of dynamic mechanical properties for 3D-printed PETG specimens","authors":"Vamsi Inturi, M Indra Reddy, Pavan Kumar Penumakala","doi":"10.1007/s12034-025-03467-6","DOIUrl":"10.1007/s12034-025-03467-6","url":null,"abstract":"<div>The fused filament fabrication (FFF) is a widely used technique for 3D printing of thermoplastics. The mechanical properties of 3D-printed samples may decrease with an increase in operating temperature. In this study, the degradation of the mechanical properties of 3D-printed polyethylene terephthalate glycol samples has been studied using dynamic mechanical analysis. The effect of process parameters such as layer thickness and operating frequency has been analysed in detail. The storage and loss modulus at the glass transition temperature decrease with an increase in layer thickness. Temperature and frequency-dependent analytical models and machine-learning (ML) algorithms, such as K-nearest neighbours, random forest (RF) and gradient boosting, are used to estimate the modulus variation as a function of temperature and loading frequency. The predictability of analytical models and ML models has been assessed. The fitting coefficients of the analytical model are evaluated as a function of temperature and frequency. Also, it is observed that the RF algorithm predicts the dynamic mechanical behaviour of 3D-printed samples with better accuracy at known frequencies as well as at unknown frequencies. For a layer thickness of 0.17 mm at 1 Hz frequency (known frequency), the RF algorithm demonstrated better performance indices with the highest R2-value of 0.983 compared to other ML algorithms. Similarly, for a layer thickness of 0.17 mm at 9 Hz frequency (unknown frequency), the RF algorithm predicted the modulus values with the highest R2-value of 0.967 compared to other ML algorithms.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of shear-thickening fluid in impact resistance: a review 剪切增稠液在抗冲击中的应用综述

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-14 DOI: 10.1007/s12034-025-03468-5

Minghai Wei, Zhiping Huang, Aoping You, Li Sun

引用次数: 0

Corrosion performance of X70 and X80 line pipe steels in a simulated concrete pore solution contaminated with 3.5 wt% NaCl X70和X80管线钢在3.5 wt% NaCl污染的模拟混凝土孔隙溶液中的腐蚀性能

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-13 DOI: 10.1007/s12034-025-03463-w

Athikamsetty Sumanth, K Vishwanath, Subrata Mukherjee, K Mondal, Harikrishna Kancharla

{"title":"Corrosion performance of X70 and X80 line pipe steels in a simulated concrete pore solution contaminated with 3.5 wt% NaCl","authors":"Athikamsetty Sumanth, K Vishwanath, Subrata Mukherjee, K Mondal, Harikrishna Kancharla","doi":"10.1007/s12034-025-03463-w","DOIUrl":"10.1007/s12034-025-03463-w","url":null,"abstract":"<div>The present study uses electrochemical approaches, such as linear and cyclic polarization, to examine the effects of immersion time (7, 14, 21 and 28 days) on the corrosion behaviour of X70 and X80 line pipe steels in a simulated concrete pore solution (SCPS) contaminated with 3.5 wt% NaCl (pH ~ 12 to 13.8). The results show that the corrosion resistance of the X70 line pipe steel decreases from 7 to 21 days, and then increases significantly after 28 days. For the X80 line pipe steel, corrosion resistance improves from 7 to 14 days due to the preferential dissolution of the bainitic phase, which enables the building of a passive film. However, corrosion resistance declines after 21 days before improving again after 28 days. This occurrence can be ascribed to the formation of stable passive film on both the steels after extended immersion periods (beyond 28 days), driven by the elevated phase fraction of α/γ* in corrosion products, where α signifies the stable α-FeOOH phase and γ* encompasses the less stable phases, such as γ-FeOOH, β-FeOOH and Fe3O4.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical and wear behaviour of thermoplastic nanocomposites along with coir fibre 热塑性纳米复合材料与椰壳纤维的机械和磨损性能

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-08-08 DOI: 10.1007/s12034-025-03462-x

T Pramod, P Sampathkumaran, R R N Sailaja, S Seetharamu, B V Padmini, H Jagadeesh, Kishore

{"title":"Mechanical and wear behaviour of thermoplastic nanocomposites along with coir fibre","authors":"T Pramod, P Sampathkumaran, R R N Sailaja, S Seetharamu, B V Padmini, H Jagadeesh,  Kishore","doi":"10.1007/s12034-025-03462-x","DOIUrl":"10.1007/s12034-025-03462-x","url":null,"abstract":"<div>In the current study, the polymer composites are prepared by blending varied percentages of high-density polyethylene (HDPE) and polycarbonate (PC) along with fixed amounts of coir fibre (reinforcement) and f-MWCNT (nanofiller) and then compressed into thin sheets. The influence of changing the HDPE/PC ratio with fixed levels of reinforcement and nanofiller on the mechanical and tribological properties has been looked into using tensilometer and pin-on-disc test setup, respectively. They were also characterized for density, hardness, surface roughness and functional group identification (Fourier transform infrared spectroscopy), respectively. It is observed that the composite with HDPE/PC matrix ratio of 70/19 with 10 wt% coir fibre and 1 wt% f-MWCNT yielded improved results in terms of higher strength (21.1%) and modulus (4.5%) as well as good slide wear resistance and low friction characteristics (0.14) as compared to other composites. The results obtained have been assessed with the fractured and wear damage morphology using scanning electron microscope. Thus the prepared composites could be a choice for manufacturing of tyres, bumpers and panels, etc. in automotive sectors, as it possesses appropriate degree of mechanical and tribological properties.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0