Materialwissenschaft und Werkstofftechnik最新文献_第6页

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 均匀角压下摩擦钨焊（AA6061）的机械性能

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 多电弧等离子体发生器中二元气体混合物的电弧建模

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 利用有限元法对红砖粉尘填充环氧复合材料进行参数评价和磨损预测

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

Rubber latex-assisted improvement of nano-zinc oxide dispersion in high density polyethylene matrix: A study on the effect of latex type and proportioning Kautschuklatex-unterstützte Verbesserung der Nano-Zinkoxid-Dispersion in einer hochdichten Polyethylen-Matrix: Eine Studie über den Einfluss von Latex-Typ und Dosierung 橡胶乳胶辅助改善高密度聚乙烯基质中的纳米氧化锌分散：一项关于乳胶类型和比例橡胶乳胶辅助改善高密度聚乙烯基质中的纳米氧化锌分散的影响的研究：一项关于乳胶类型和剂量影响的研究

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202300383

J. Li, W. Mou, X. Li, J. Zhu, C. Hu

{"title":"Rubber latex-assisted improvement of nano-zinc oxide dispersion in high density polyethylene matrix: A study on the effect of latex type and proportioning\u0000 Kautschuklatex-unterstützte Verbesserung der Nano-Zinkoxid-Dispersion in einer hochdichten Polyethylen-Matrix: Eine Studie über den Einfluss von Latex-Typ und Dosierung","authors":"J. Li, W. Mou, X. Li, J. Zhu, C. Hu","doi":"10.1002/mawe.202300383","DOIUrl":"https://doi.org/10.1002/mawe.202300383","url":null,"abstract":"Herein, the type of latex and its ratio to nano-zinc oxide have been investigated for the effectiveness of latex-assisted dispersion of nano-zinc oxide. By analyzing the mixed state of latex and nano-zinc oxide after the addition of coagulants, as well as physical and scanning electron microscope of corresponding composite materials, it was determined that natural rubber latex has the best auxiliary dispersion effect. Based on this result, the effect of the ratio of natural latex to zinc oxide nanoparticles was further investigated. Result showed that when the ratio of the two was too small, the nano-zinc oxide in the rubber particles would cause the natural rubber latex to fail to solidify rapidly. When the ratio of the two was 2 : 1, the natural rubber latex rapidly solidify and encapsulate the nano-zinc oxide. Eventually dispersed uniformly in the high density polyethylene matrix. Based on these results, the corresponding composites have a corrected notched impact strength of 142.6 kJ⋅m−2 and a tensile strength of 24.2 MPa. They also have excellent electrical insulation properties. These two properties are retained at a high rate after aging., This work further refines the latex-assisted dispersion method and can improve the potential of the method for industrial applications.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"144-154"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117210","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

Optimization of vacuum isothermal quenching process and microstructure analysis of die steel Cr12MoV Optimierung des isothermen Vakuumabschreckens und Gefügeanalyse des Gesenkstahls Cr12MoV 真空等温淬火工艺的优化和钢的微观结构分析Cr12MoV等温真空阻尼器的优化和钢的结构分析Cr12MoV

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400122

S. D. Hu, Y. K. Meng, X. F. Tang, G. B. Shao

{"title":"Optimization of vacuum isothermal quenching process and microstructure analysis of die steel Cr12MoV\u0000 Optimierung des isothermen Vakuumabschreckens und Gefügeanalyse des Gesenkstahls Cr12MoV","authors":"S. D. Hu, Y. K. Meng, X. F. Tang, G. B. Shao","doi":"10.1002/mawe.202400122","DOIUrl":"https://doi.org/10.1002/mawe.202400122","url":null,"abstract":"This study first employed a vacuum isothermal gas quenching process to heat-treat Cr12MoV in an attempt to achieve a mixed structure of martensite and lower bainite. Based on an analysis of the impact of different isothermal gas quenching process parameters on the properties and microstructure of Cr12MoV steel, with a focus on material impact toughness and Rockwell hardness, the particle swarm optimization method was used to optimize the vacuum gas quenching process parameters for Cr12MoV steel. Using the optimized process parameters, Cr12MoV steel was subjected to vacuum isothermal gas quenching treatment. Microstructure observations and phase analysis revealed that the post-quenching structure consisted of an excellent combination of martensite and lower bainite dual-phase structures, with reduced carbide content and even distribution. After two tempering processes, it was observed that the residual austenite content significantly decreased. The vacuum isothermal gas quenching-tempering process effectively reduced material anisotropy and tool deformation.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"110-121"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117212","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

Einfluss der Feuerverzinkung auf die mechanischen Eigenschaften des hochfesten Baustahls S620QH Influence of hot-dip galvanizing on the mechanical properties of the high-strength structural steel S620QH 热镀锌对高强度结构钢S620QH机械性能的影响

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400051

T. Pinger, T. Müller, B. Straetmans, C. Kaucke, B. C. Kopanka, J. Wiebe, C. Stallybrass

{"title":"Einfluss der Feuerverzinkung auf die mechanischen Eigenschaften des hochfesten Baustahls S620QH\u0000 Influence of hot-dip galvanizing on the mechanical properties of the high-strength structural steel S620QH","authors":"T. Pinger, T. Müller, B. Straetmans, C. Kaucke, B. C. Kopanka, J. Wiebe, C. Stallybrass","doi":"10.1002/mawe.202400051","DOIUrl":"https://doi.org/10.1002/mawe.202400051","url":null,"abstract":"Die Kombination von Effizienz und Dauerhaftigkeit ist im Hinblick auf die Gestaltung nachhaltiger Konstruktionen von besonderer Bedeutung, entsprechend sind Kenntnisse zur Verzinkung hochfester Stähle von zunehmendem Interesse. Im Rahmen einer vertiefenden Studie wurde am Baustahl S620QH der Einfluss der Verzinkung unter Variation der Verzinkungstemperatur und -dauer auf die mechanischen Eigenschaften untersucht. Hierzu wurden sowohl Zug- und Kerbschlagbiegeversuche als auch begleitende Materialsimulationen durchgeführt. Im Ergebnis zeigt sich, dass bei der klassischen Verzinkung im Bereich üblicher Prozessparameter, nämlich einer Verzinkungstemperatur im Bereich von 440 °C bis 460 °C sowie Tauchdauern bis 20 Minuten, keine nennenswerten Effekte auf die Eigenschaften des Stahls auftreten. Bei der Hochtemperaturverzinkung wirkt sich die Temperatur in Höhe von 550 °C bei langen Tauchdauern nicht auf die Festigkeit und Duktilität, jedoch zähigkeitsmindernd auf die Stahlsorte S620QH aus. Die parallelen simulativen Untersuchungen weisen darauf hin, dass durch eine erneute Erwärmung die Ausscheidungshärtung mit steigender Temperatur, temperaturabhängig beschleunigt und weitere feine Ausscheidungen ermöglicht werden und dies für den Effekt ursächlich ist. Daraus wird die Empfehlung zur Einhaltung einer Anlasstemperatur von mindestens 580 °C für die letzte Wärmebehandlung des Vergütungsprozesses von warmgefertigten Hohlprofilen nach DIN EN 10210-3 abgeleitet.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"66-76"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117414","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

Estimating the crashworthiness performances of crushboxes using artificial neural network Einschätzung der Crashsicherheit von Schockabsorbersystemen mittels künstlicher neuronaler Netzwerke 估计使用人工神经网络的粉碎盒的碰撞性能人工神经网络的碰撞安全

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400032

O. Koçar, Ö. Adanur, F. Varol, A. S. Guldibi

{"title":"Estimating the crashworthiness performances of crushboxes using artificial neural network\u0000 Einschätzung der Crashsicherheit von Schockabsorbersystemen mittels künstlicher neuronaler Netzwerke","authors":"O. Koçar, Ö. Adanur, F. Varol, A. S. Guldibi","doi":"10.1002/mawe.202400032","DOIUrl":"https://doi.org/10.1002/mawe.202400032","url":null,"abstract":"Studies on the development of energy absorbing systems that minimize vehicle chassis damage in traffic accidents are increasing day by day. Many designs have been made in the studies on crushboxes used to absorb the energy released in the event of an accident. These design works are quite costly and take a long time. In this study, to design crushboxes faster and more economically was estimated using artificial neural network. The input layer of the artificial neural network model consists of three different materials, thicknesses (between 0.8 and 2.2 mm) and three different initial speeds. In the artificial neural network model, 42 different models were created by changing the different training functions (training, trainlm and trainrp), transfer functions (tansig and logsig) and the number of neurons in the hidden layer (between 9 and 33). R2 and root mean square error (RMSE) methods were used to evaluate the efficiency of artificial neural network models. The training function was found to be highly accurate (R2: 0.99999 and root mean square error: 0.314727E-05) when the training function was “trainlm” and the number of neurons in the hidden layer was 33. The training and testing results of the artificial neural network model show that artificial neural networks can be used to estimate the specific energy absorption/energy/peak crush force value of crushboxes.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"95-109"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117403","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

Interface microstructure and mechanical properties of selective laser melting-formed CuCrZr alloy for 316 L stainless steel Grenzflächengefüge und mechanische Eigenschaften selektiver laserstrahlschmelzgeformter CuCrZr-Legierungen an der Fügestelle zum hochlegierten Stahl X2CrNiMo17-12-2 316l不锈钢选择性激光熔融CuCrZr合金的界面微观结构和机械性能高合金钢X2CrNiMo17-12-2接头选择性激光熔融CuCrZr合金的界面结构和机械性能

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400101

Y. Wang, B. Liu, Q. Tang, W. Huo, Z. Li, Y. Bai

{"title":"Interface microstructure and mechanical properties of selective laser melting-formed CuCrZr alloy for 316 L stainless steel\u0000 Grenzflächengefüge und mechanische Eigenschaften selektiver laserstrahlschmelzgeformter CuCrZr-Legierungen an der Fügestelle zum hochlegierten Stahl X2CrNiMo17-12-2","authors":"Y. Wang, B. Liu, Q. Tang, W. Huo, Z. Li, Y. Bai","doi":"10.1002/mawe.202400101","DOIUrl":"https://doi.org/10.1002/mawe.202400101","url":null,"abstract":"A bimetallic structure combines the properties of two constituent materials and has a high comprehensive performance. Selective laser melting has been widely studied for its advantages such as high utilization of raw materials, short processing cycles, and the ability to form complex structures. The 316 L-CuCrZr bimetallic structure was successfully prepared using selective laser melting. Its microstructural analysis and energy spectrum analysis indicated that the 316 L stainless steel and the CuCrZr alloy formed a good interfacial bond and that the elements at the interface exhibited a gradient distribution. The tensile strength of 316 L-CuCrZr was 280.97 MPa, which was close to the strength of the CuCrZr alloy. The interface hardness showed a decreasing trend from that of the stainless steel to that of the copper alloy, which indicated that the interface between the 316 L stainless steel and the CuCrZr alloy was well bonded.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 1","pages":"88-94"},"PeriodicalIF":1.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117404","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

A generalized three-parameters model to describe the strain-life curve under asymmetrical cyclic loading Ein verallgemeinertes Drei-Parameter-Modell zur Beschreibung der Dehnungs-Lebensdauer-Kurve unter asymmetrischer zyklischer Belastung 描述不对称循环负荷下应变寿命曲线的广义三参数模型

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-20 DOI: 10.1002/mawe.202400227

J. Li, R. Wang, X. L. Li, Y. Y. Qiu

引用次数: 0

Correction to “Improved photocatalytic performance via air-plasma modification of titanium dioxide: Insights from experiments and simulations” 对“通过空气等离子体改性二氧化钛提高光催化性能：来自实验和模拟的见解”的更正

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2024-12-17 DOI: 10.1002/mawe.202470233

引用次数: 0