Materialwissenschaft und Werkstofftechnik最新文献

Materialwiss. Werkstofftech. 8/2025 Materialwiss .Werkstofftech . 8/2025

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-25 DOI: 10.1002/mawe.70036

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Impressum: Materialwiss. Werkstofftech. 8/2025 刊头:Materialwiss .Werkstofftech . 8/2025

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-25 DOI: 10.1002/mawe.70034

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Cover Picture: (Materialwiss. Werkstofftech. 8/2025) 封面图片：(Materialwiss。Werkstofftech . 8/2025)

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-25 DOI: 10.1002/mawe.70035

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Effect of aluminum contents on the microstructure and mechanical properties of magnesium-aluminum-calcium alloys Einfluss von Aluminium auf das Gefüge und die mechanischen Eigenschaften von Magnesium-Aluminium-Calciumlegierungen 铝含量对镁-铝-钙合金的微观结构和机械性能的影响

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-17 DOI: 10.1002/mawe.70017

X. D. Yuan, C. Y. Zhang, H. P. Pan, Y. Liu, P. Liu, X. Y. Zhang

{"title":"Effect of aluminum contents on the microstructure and mechanical properties of magnesium-aluminum-calcium alloys\u0000 Einfluss von Aluminium auf das Gefüge und die mechanischen Eigenschaften von Magnesium-Aluminium-Calciumlegierungen","authors":"X. D. Yuan, C. Y. Zhang, H. P. Pan, Y. Liu, P. Liu, X. Y. Zhang","doi":"10.1002/mawe.70017","DOIUrl":"https://doi.org/10.1002/mawe.70017","url":null,"abstract":"The effect of aluminum contents on the microstructure and mechanical properties of as-extruded magnesium-aluminum-calcium alloys was systematically investigated. The as-solid alloys with three aluminum contents contain block-shape calcium aluminide phases and aluminum-manganese intermetallic phases. Differently, the amounts of block-shape calcium aluminide phases and aluminum-manganese intermetallic phases increased with aluminum contents. During hot extrusion process, the block-shape calcium aluminide phases and aluminum-manganese intermetallic phases are fragmented into small pieces and aligned along the extrusion direction. Bimodal microstructures were obtained after extrusion, consisting of fine dynamically recrystallized grains and coarse deformed grains. The area fractions of dynamically recrystallized grains increased from 53 % to 65 % with aluminum contents increasing from 3.12 % to 5.21 %, due to the particle stimulated nucleation mechanism caused by block-shape aluminum-containing phases. The as-extruded magnesium-aluminum-calcium alloys show a strong basal fiber texture, which diminished as aluminum contents increase. The strength of as-extruded magnesium-aluminum-calcium alloys diminished as aluminum contents increased. The as-extruded magnesium-3.12 aluminum-2.65 calcium (wt.-%) alloy demonstrates a yield strength of 366 MPa and an ultimate tensile strength of 391 MPa. The exceptional high strengths are due to the ultrafine dynamically recrystallized grains stabilized by fragmented second phases, strong basal texture and high dislocation density.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1105-1112"},"PeriodicalIF":1.1,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129138","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

Comparative study of physico-mechanical wear analysis of gravity die casting and centrifugal methods for waste/nanoparticle-filled polymer composites Untersuchung der physikalisch-mechanischen Verschleißanalyse zu Druckguss- und Schleudergussverfahren für mit Abfall/Nanopartikeln gefüllte Polymerverbundwerkstoffe 废物/纳米颗粒填充聚合物复合材料的物理机械磨损分析、铸造方法和离心方法的比较研究

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-09 DOI: 10.1002/mawe.70018

B. Gangil, L. Ranakoti, P. Bhandari, A. Bisht, D. Biswas, S. K. Verma

{"title":"Comparative study of physico-mechanical wear analysis of gravity die casting and centrifugal methods for waste/nanoparticle-filled polymer composites\u0000 Untersuchung der physikalisch-mechanischen Verschleißanalyse zu Druckguss- und Schleudergussverfahren für mit Abfall/Nanopartikeln gefüllte Polymerverbundwerkstoffe","authors":"B. Gangil, L. Ranakoti, P. Bhandari, A. Bisht, D. Biswas, S. K. Verma","doi":"10.1002/mawe.70018","DOIUrl":"https://doi.org/10.1002/mawe.70018","url":null,"abstract":"The present investigation compares two fabrication techniques, gravity die casting and centrifugal casting, for fabricating homogeneous and functionally graded material composites based on their mechanical and wear characteristics. Therefore, composite samples were fabricated by incorporating different weights of silica nanoparticles in vinyl ester containing a fixed amount of walnut shell filler. The choice of walnut shell filler and vinyl ester as the reinforcing and matrix materials, respectively, was deliberate, as these materials possess unique characteristics that make them suitable for composite fabrication. Tests were conducted on fabricated samples of both gravity die casting and functionally graded material. It was found that gravity die casting composites exhibit better tensile strength and impact energy, while functionally graded material composites showed better hardness and wear resistance. In addition, void formation is much lower in functionally graded material composite, demonstrating the effectiveness of the centrifugal technique in producing composites with fewer defects.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1096-1104"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129024","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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Investigating the crevice corrosion of 304 stainless steel and B30 copper-nickel alloys by thiosulfate using wire beam electrode Untersuchung der Spaltkorrosion von rostfreiem Stahl 304 und Kupfer-Nickel-Legierungen B30 durch Thiosulfat unter Verwendung einer Drahtstrahlelektrode 硫代硫酸盐利用导线束电极研究304不锈钢和B30铜镍合金的裂纹腐蚀

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-09 DOI: 10.1002/mawe.70016

X. M. Wang, Q. D. Zhong, L. Ma, Y. C. Yu

{"title":"Investigating the crevice corrosion of 304 stainless steel and B30 copper-nickel alloys by thiosulfate using wire beam electrode\u0000 Untersuchung der Spaltkorrosion von rostfreiem Stahl 304 und Kupfer-Nickel-Legierungen B30 durch Thiosulfat unter Verwendung einer Drahtstrahlelektrode","authors":"X. M. Wang, Q. D. Zhong, L. Ma, Y. C. Yu","doi":"10.1002/mawe.70016","DOIUrl":"https://doi.org/10.1002/mawe.70016","url":null,"abstract":"Crevice corrosion behavior of 304 stainless steel and B30 copper-nickel alloys in sodium chloride solution containing different concentrations of thiosulfate ion (S2O32−) were studied by wire beam electrode. The increase of thiosulfate ion concentration promotes the crevice corrosion of 304 stainless steel. However, the crevice corrosion is inhibited due to excess thiosulfate ions. The local corrosion intensity inside and outside the crevice also formed an inversion at the chloride ion (Cl−)/thiosulfate ion concentration ratio. When coupled 304 stainless steel and B30 copper-nickel alloy occurs crevice corrosion, 304 stainless steel outside the crevice acts as the cathode and B30 copper-nickel alloy acts as the anode at the initial stage. The active dissolution of 304 stainless steel inside and outside the crevice jointly promoted the crevice corrosion of B30 copper-nickel alloy at the later stage. The crevice corrosion mechanisms of 304 stainless steel and B30 copper-nickel alloy are also discussed.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1113-1126"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129026","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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Current state of the art approach, materials, and future prospects of four-dimensional bioprinting of smart materials for biomedical applications Aktueller Stand der Technik, Werkstoffe und Zukunftsaussichten bei vierdimensionalen Biodruck intelligenter Werkstoffe für biomedizinische Anwendungen 智能材料用于生物医学应用的四维生物打印的现状、材料和未来前景

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-09 DOI: 10.1002/mawe.70015

Mansi, H. Kumar, A. K. S. Singholi

{"title":"Current state of the art approach, materials, and future prospects of four-dimensional bioprinting of smart materials for biomedical applications\u0000 Aktueller Stand der Technik, Werkstoffe und Zukunftsaussichten bei vierdimensionalen Biodruck intelligenter Werkstoffe für biomedizinische Anwendungen","authors":"Mansi, H. Kumar, A. K. S. Singholi","doi":"10.1002/mawe.70015","DOIUrl":"https://doi.org/10.1002/mawe.70015","url":null,"abstract":"Four-dimensional bioprinting incorporates the notion of time with three-dimensional bioprinting as the additional dimension and offers the prospect of constructing detailed and essential biological frameworks. It has been considered the future of biomedical applications, namely tissue engineering, wound repair, drug delivery systems, etc. Through the adoption of stimulus-responsive materials, Four-Dimensional bioprinting is an excellent way to construct dynamic, three-dimensional-structured biological constructs that morph their shape in reaction to varied stimuli. A new frontier in tissue engineering, i.e. four dimensional bioprinting, refers to the operational development and maturation of cell-loaded printed structures over time. This review article is concerned with the idea of four-dimensional bioprinting and the latest advances in smart/intelligent materials, which can be activated by various stimuli to create biomimetic constructs and materials, along with brief insights into biomedical applications. These advancements have significant possibilities for biomedical research while also offering promising future prospects.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1138-1154"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129025","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

Advanced exploration of current state-of-the-art of practices of fiber-reinforced self-compacting geopolymer concrete Untersuchung zum aktuellen Stand der Technik von Praktiken von faserverstärktem, selbstverdichtendem Geopolymerbeton 对纤维增强自压实土工聚合物实践现状的先进探索

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-09 DOI: 10.1002/mawe.70019

R. Sawant, D. A. Joshi, R. Menon

{"title":"Advanced exploration of current state-of-the-art of practices of fiber-reinforced self-compacting geopolymer concrete\u0000 Untersuchung zum aktuellen Stand der Technik von Praktiken von faserverstärktem, selbstverdichtendem Geopolymerbeton","authors":"R. Sawant, D. A. Joshi, R. Menon","doi":"10.1002/mawe.70019","DOIUrl":"https://doi.org/10.1002/mawe.70019","url":null,"abstract":"Cement industries, pivotal in concrete production, remain a global environmental concern due to their impact on sustainability. Traditional concrete exhibits robust compressive strength but lacks in tension strength, often resulting in cracks. Addressing this, well-dispersed fibers play a crucial role in mitigating crack formation. Reinforcement strategies, transferring tensile loads to the material, are pivotal for enhancing concrete's overall strength. Geopolymers emerge as a sustainable alternative, potentially reducing greenhouse gas emissions associated with cement production. With the prospect of replacing Portland cement, geopolymers, including fly ash, ground granulated blast furnace slag, and silica fumes, aim to minimize carbon footprints. This research optimizes the workability and mechanical properties of self-compacting geopolymer concrete by adjusting binding materials, molarity, superplasticizer, curing temperature, and fibers. Concrete alternatives like self compacting geopolymer concrete are resource- and waste-efficient since they compress under their own weight. Composite geopolymers with fiber reinforcing are widespread. Microstructural, mechanical, and physical qualities are explored in fiber reinforced geopolymer concrete research publications by fiber type. Self-compacting geopolymer concrete is more environmentally friendly and resource-efficient than ordinary concrete, according to this study. Geopolymer composites are improved by studying fiber reinforced self compacting geopolymer concrete with different fiber reinforcements.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1070-1095"},"PeriodicalIF":1.1,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129034","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

High frequency pulse gas tungsten arc welding of 304HCu stainless steel Hochfrequenz-Impuls-Wolframinertgasschweißen von rostfreiem Stahl X3CrNiCu18-9 304HCu不锈钢高频脉冲气体钨极电弧焊hochfrequency - impulse - wolframinertgasschwei ßen von rostfreiem Stahl X3CrNiCu18-9

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-05 DOI: 10.1002/mawe.70021

S. Srinivasan, R. Ravi Bharath, A. Atrens, P. Bala Srinivasan

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Engineering sustainable composites: Role of fibre sequence and treatment in sisal/ramie vinyl ester composites Einfluss der Faserreihenfolge und -behandlung bei der Entwicklung nachhaltiger Sisal/Ramie-Vinylester-Verbundwerkstoffe 可持续复合材料的工程：纤维序列和处理在剑麻/拉米乙烯基酯复合材料中的作用

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-05 DOI: 10.1002/mawe.70014

R. M. Reddy, S. S. Raj, L. Gundagani, S. M. Kumar, T. Shubhlakshmi, G. K. Jadhav, G. Dharmalingam, A. B. Kolekar, A. J. Arockiam

{"title":"Engineering sustainable composites: Role of fibre sequence and treatment in sisal/ramie vinyl ester composites\u0000 Einfluss der Faserreihenfolge und -behandlung bei der Entwicklung nachhaltiger Sisal/Ramie-Vinylester-Verbundwerkstoffe","authors":"R. M. Reddy, S. S. Raj, L. Gundagani, S. M. Kumar, T. Shubhlakshmi, G. K. Jadhav, G. Dharmalingam, A. B. Kolekar, A. J. Arockiam","doi":"10.1002/mawe.70014","DOIUrl":"https://doi.org/10.1002/mawe.70014","url":null,"abstract":"This study investigated the impacts of fibre stacking sequence and sodium hydroxide treatment on the mechanical properties of sustainable sisal/ramie hybrid vinyl ester composites. Fourier transform infrared analysis (FTIR) revealed significant chemical changes in treated fibres, including increased fibre purity due to the removal of hemicellulose and portions of lignin, resulting in more hydroxyl groups. These changes enhanced the interaction between fibres and the matrix, thereby improving the mechanical properties of the composites. Among various stacking sequences, the ramie/sisal/sisal/ramie (C6) configuration exhibited the highest Shore-D hardness (61.2 D), tensile strength (30.83 MPa), and tensile modulus (0.84 GPa), attributed to the strategic placement of ramie layers in load-bearing positions. This configuration also demonstrated superior flexural strength (63.33 MPa) and flexural modulus (2.02 GPa) due to the balanced distribution of stress between the matrix and fibres. Scanning electron microscopy (SEM) images confirmed that alkali treatment improved fibre-matrix adhesion, reducing defects such as fibre pullout and matrix cracks. The findings highlight that both fibre stacking sequence and alkali treatment play a crucial role in enhancing the mechanical performance of natural fibre composites, making them suitable for applications demanding high strength and durability.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 8","pages":"1127-1137"},"PeriodicalIF":1.1,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128839","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