Materialwissenschaft und Werkstofftechnik最新文献_第4页

Impressum: Materialwiss. Werkstofftech. 1/2025

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202580121

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Deflection responses of damaged hybrid (carbon nanotubes – luffa) composite structure: An experimental verification Biegeverhalten einer beschädigten hybriden Verbundwerkstoffstruktur (Kohlenstoffnanoröhren – Luffa): Eine experimentelle Überprüfung

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202400119

B. Patel, K. Guru, S. K. Bohidar

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Materialwiss. Werkstofftech. 1/2025

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202580111

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Selection of carbon particles with different shape, size and concentration as additives in a stereolithographic resin Zur Auswahl von Kohlenstoff-Partikeln verschiedener Form, Größe und Konzentration als Additive in einem Stereolithografie-Harz

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202300370

D. Dietrich, W. Förster, C. Eßbach, P. Neumann, D. Nickel

{"title":"Selection of carbon particles with different shape, size and concentration as additives in a stereolithographic resin\u0000 Zur Auswahl von Kohlenstoff-Partikeln verschiedener Form, Größe und Konzentration als Additive in einem Stereolithografie-Harz","authors":"D. Dietrich, W. Förster, C. Eßbach, P. Neumann, D. Nickel","doi":"10.1002/mawe.202300370","DOIUrl":"https://doi.org/10.1002/mawe.202300370","url":null,"abstract":"Stereolithography (SLA) as one of the additive manufacturing processes provides new approaches towards high design flexibility and fast prototyping. In the last years, the variety of different resins is highly enhanced towards polymers that meet high requirements – mechanical, optical and thermal properties as well as electroconductivity. To our knowledge, direct electroplating is not investigated so far. The aim of our work is the development of a composite material that is able to be processed by stereolithography and that provides the electroconductivity for direct electroplating. Direct electroplating highly improves the process of electroplating on polymers because of less process steps and the avoidance of toxic chemicals. With regard to material efficiency and saving resources, direct electroplating may be more environmental than the established industrial process of electroplating on polymers. A commercially available synthetic resin is our base material. Electroconductive filler are graphitic particles with different shapes and sizes. By varying the additives content, the effects on homogeneity and viscosity of the composite resin, its hardenability and the electrical resistance of the manufactured samples are investigated.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"8-16"},"PeriodicalIF":1.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202300370","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Review of current progress on additive manufacturing of medical implants and natural/synthetic fibre reinforced composites Überblick über die aktuellen Fortschritte bei der additiven Fertigung von medizinischen Implantaten und natur-/synthetikfaserverstärkten Verbundwerkstoffen

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202400070

C. Nsanzumuhire, O. O. Daramola, I. O. Oladele, A. D. Akinwekomi

{"title":"Review of current progress on additive manufacturing of medical implants and natural/synthetic fibre reinforced composites\u0000 Überblick über die aktuellen Fortschritte bei der additiven Fertigung von medizinischen Implantaten und natur-/synthetikfaserverstärkten Verbundwerkstoffen","authors":"C. Nsanzumuhire, O. O. Daramola, I. O. Oladele, A. D. Akinwekomi","doi":"10.1002/mawe.202400070","DOIUrl":"https://doi.org/10.1002/mawe.202400070","url":null,"abstract":"Additive manufacturing, or 3D printing technique, is a technology that uses computerized information to generate three-dimensional solid objects. These objects are produced by feed-stocking and fusing materials layer by layer. Compared to conventional manufacturing, additive manufacturing can make geometrical shapes that are very complex within a short time with less material wastage. Remarkable applications of manufacturing technology are found in automobile, aerospace, medicine, and natural/synthetic fibre-reinforced composites. Manufactured parts are fabricated using metals, ceramics, and mainly polymers or composites. Advancements in research have recently been implemented to optimize the process. This review focuses on the research progress on current methods applied to optimize 3D printed biopolymer medical implants and natural/synthetic fibre-reinforced composites. The objective of this article is to review new opportunities to produce multifunctional materials and suggest solutions to solve persisting challenges in additive manufacturing of medical implants using natural/synthetic fiber reinforced composites. The influence of process parameters on output performance measures, as well as the modelling and simulation techniques applied, are critically established in this paper. Current 3D printing processes and technologies, including the status and future of additive manufacturing, are also critically presented. Finally, challenges and research opportunities for improved high-performing and less costly printed parts are also illustrated.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"17-42"},"PeriodicalIF":1.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115295","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}

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Cover Picture: (Materialwiss. Werkstofftech. 1/2025)

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202580101

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Transforming waste red mud and fly ash to wealth by designing a hybrid Al alloy composite with improved mechanical and tribological properties Umwandlung von Rotschlamm und Flugasche in Wohlstand durch Entwicklung eines hybriden Al-Legierungsverbundwerkstoffes mit verbesserten mechanischen und tribologischen Eigenschaften

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202300378

S. Kumar, S. Bera, D. Mandal, A. K. Chakraborty

{"title":"Transforming waste red mud and fly ash to wealth by designing a hybrid Al alloy composite with improved mechanical and tribological properties\u0000 Umwandlung von Rotschlamm und Flugasche in Wohlstand durch Entwicklung eines hybriden Al-Legierungsverbundwerkstoffes mit verbesserten mechanischen und tribologischen Eigenschaften","authors":"S. Kumar, S. Bera, D. Mandal, A. K. Chakraborty","doi":"10.1002/mawe.202300378","DOIUrl":"https://doi.org/10.1002/mawe.202300378","url":null,"abstract":"In the present work, we demonstrate the development of a cost-effective hybrid composite of aluminium 6063 alloys by utilizing some industrial wastes like fly ash and red mud as reinforcement. Alloy composites have been produced with varying concentrations of reinforcement by a two-step stir-casting method. X-ray diffraction (XRD) confirmed the presence of fly ash and red mud whereas microstructural analysis through optical microscopy showed a uniform distribution of the reinforcements within the alloy matrix. The composite formed with optimized weight fractions of red mud and fly ash exhibited higher ultimate tensile strength in comparison with base aluminium alloy. Furthermore, the dry sliding wear behaviour of the alloy and its composites have been investigated at low sliding speed against a hardened disk at three different loads (2 kg, 3 kg and 4 kg). The wear rate increases with increasing load in the alloy as well as in the composite. Sem images of worn surfaces of the hybrid composite exhibit fewer grooves when 5 wt.-% of both reinforcements are present. Essentially, the overall wear rate of the composite is found lower than the base alloy. Hybrid composites with 5 wt.-% of both reinforcements show maximum wear resistance.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"122-131"},"PeriodicalIF":1.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202300378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Mechanical properties of rotary friction and gas tungsten arc welded aa6061 weldments subjected to equal channel angular pressing Mechanische Eigenschaften der reib- und wolframinertgasgeschweißten Aluminiumlegierung (AA6061) unter gleichmäßiger Winkelpressung

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-01-15 DOI: 10.1002/mawe.202400052

M. Balasubramanian, N. Sadasivan

{"title":"Mechanical properties of rotary friction and gas tungsten arc welded aa6061 weldments subjected to equal channel angular pressing\u0000 Mechanische Eigenschaften der reib- und wolframinertgasgeschweißten Aluminiumlegierung (AA6061) unter gleichmäßiger Winkelpressung","authors":"M. Balasubramanian, N. Sadasivan","doi":"10.1002/mawe.202400052","DOIUrl":"https://doi.org/10.1002/mawe.202400052","url":null,"abstract":"Metal joining can perhaps be said as one of the most indispensable manufacturing processes, with applications across a variety of engineering streams ranging from automobile to day-to-day construction activities. The conventional techniques primarily rely on melting the two joining surfaces and solidifying them to create a fresh cast joint. Though the plates being welded are wrought the joints inevitably are cast and hence result in heterogenous mechanical properties between the base metal. In alloy systems with eutectic phase, the high heat input involved in melting the joining surfaces often degrades the strength of the material in the vicinity of the weldment resulting in the formation of a heat-affected zone. In the welding of heat-treatable aluminium alloys, heat-affected zone degradation is often the weakest point of the welded sample The mechanical properties of a weldment can be improved by extensive plastic deformation. Studies show that such strengthening of AA6061 alloys is a combined influence of the grain refinement of the primary matrix as well as the redistribution of the secondary eutectic phase. Weldments fabricated by gas tungsten arc welding and rotary friction welding were subjected to severe plastic deformation, and the effects were studied. Improved mechanical properties thereby providing an alternative solution to post-weld heat treatment were observed.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"43-56"},"PeriodicalIF":1.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115247","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

Modeling of arcs with binary gas mixtures in a multi-arc plasma generator Lichtbogenmodellierung in einem Multielektroden-Plasmagenerator mit binären Gasgemischen

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202300134

K. Bobzin, H. Heinemann, M. Erck, S. Warkentin, O. Mokrov, R. Sharma, U. Reisgen, K. Jasutyn

{"title":"Modeling of arcs with binary gas mixtures in a multi-arc plasma generator\u0000 Lichtbogenmodellierung in einem Multielektroden-Plasmagenerator mit binären Gasgemischen","authors":"K. Bobzin, H. Heinemann, M. Erck, S. Warkentin, O. Mokrov, R. Sharma, U. Reisgen, K. Jasutyn","doi":"10.1002/mawe.202300134","DOIUrl":"https://doi.org/10.1002/mawe.202300134","url":null,"abstract":"Using plasma as an energy source in thermal spraying allows the processing of feedstock materials with high melting temperatures. In plasma spraying, hydrogen or nitrogen is commonly injected into the argon plasma, which increases the specific enthalpy and thermal conductivity. The objective of this study is to improve the understanding of this process through numerical simulation and to investigate the impact on the plasma properties. A comprehensive modelling approach for the electrodes in the three-cathode plasma generator is built upon the previous work of the authors. The plasma is described as an electromagnetically reactive fluid in local thermodynamic equilibrium using temperature-dependent thermodynamic and transport properties. The increase of flow temperature and velocity as well as the temperature distribution at the electrodes can be successfully simulated. The simulation model could accelerate parameter development for new coating systems in the future. This study completes the simulation model for multi-arc plasma spraying using binary gas mixtures.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"77-87"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202300134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parametric appraisal and wear prediction of red brick dust filled epoxy composites using finite element method Parametrische Bewertung und Verschleißvorhersage von mit rotem Ziegelstaub gefüllten Epoxidverbundwerkstoffen mit Hilfe der Finite-Elemente-Methode

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400161

G. Gupta, A. Purohit, S. S. Kumar, C. P. Mohanty, S. Ray, P. R. Pati

{"title":"Parametric appraisal and wear prediction of red brick dust filled epoxy composites using finite element method\u0000 Parametrische Bewertung und Verschleißvorhersage von mit rotem Ziegelstaub gefüllten Epoxidverbundwerkstoffen mit Hilfe der Finite-Elemente-Methode","authors":"G. Gupta, A. Purohit, S. S. Kumar, C. P. Mohanty, S. Ray, P. R. Pati","doi":"10.1002/mawe.202400161","DOIUrl":"https://doi.org/10.1002/mawe.202400161","url":null,"abstract":"This article proposes the development of a novel polymer composites using non-conventional materials, specifically constructional wastes such as red brick dust, in different weight percentages (0 wt.-%, 10 wt.-%, 20 wt.-%, and 30 wt.-%) and their erosion wear characteristics has been studied. Solid particle erosion test equipment is employed to evaluate the erosion wear characteristics of the composites. According to the study, adding red brick dust to epoxy resin enhances its erosion resistance. The influence of input parameters has also been evaluated using Taguchi approach. The results of this experiment show that the most important variables influencing the composites′ wear rate are impact velocity and filler content. The factor combinations A2B4C4D2E3 exhibit the lowest erosion wear. Moreover, a commercial finite element method tool called ANSYS 2019 R2 is utilized to estimate the wear rate of epoxy/red brick dust composites. After that, the experimental and predicted wear rates of the composites are compared, and it is discovered that the two sets of data accord better. Scanning electron microscopy is utilized to examine the eroded composite samples, and the potential wear causes are explored.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"155-161"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117211","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