Materialwissenschaft und Werkstofftechnik最新文献

Overlap joining of EN AW 7075 with laser beam welding in vacuum Fügen von EN AW 7075 im Überlappstoß mit dem Laserstrahlschweißen im Vakuum

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-25 DOI: 10.1002/mawe.202400205

B.O. Gerhards, B. Gerhards, B. Macke, P. Häuser, M. Schleser, P. Liebe

{"title":"Overlap joining of EN AW 7075 with laser beam welding in vacuum\u0000 Fügen von EN AW 7075 im Überlappstoß mit dem Laserstrahlschweißen im Vakuum","authors":"B.O. Gerhards, B. Gerhards, B. Macke, P. Häuser, M. Schleser, P. Liebe","doi":"10.1002/mawe.202400205","DOIUrl":"https://doi.org/10.1002/mawe.202400205","url":null,"abstract":"The integration of EN AW 7075 aluminium in Body in White structures is a promising way to achieve weight savings, which in turn can make a significant contribution to reducing CO2-emissions. However, due to hot cracking susceptibility, conventional welding technologies offer limited possibilities to join the material. Therefore, laser beam welding in vacuum is introduced as a comparatively new joining technique. The investigations show, that it is possible to weld the EN AW 7075 alloy in an overlap joint configuration without pores or microcracks appearing in the weld seam. The weld seam has a very fine-grained structure, which presumably has a favourable effect on hot cracking mechanism. The prevention of cracking is likely due to the lower temperature gradient between the capillary wall and the fusion line caused by the low evaporation temperature due to the reduced pressure. The reduced temperature results in lower residual stresses, which presumably has a positive effect on the tendency to hot cracking. In addition, the fine-grained structures can absorb strain better than coarse grain structures, that usually occur in conventional laser beam welding.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"376-387"},"PeriodicalIF":1.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202400205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698834","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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Materialwiss. Werkstofftech. 3/2025

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-25 DOI: 10.1002/mawe.202580311

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Cover Picture: (Materialwiss. Werkstofftech. 3/2025)

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-25 DOI: 10.1002/mawe.202580301

引用次数: 0

Impressum: Materialwiss. Werkstofftech. 3/2025

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-25 DOI: 10.1002/mawe.202580321

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Synthesis, characterization, and interfacial adhesion of titania iodine-doped nanotubes architectures on additively manufactured Ti-6Al-4V implant Synthese, Charakterisierung und Grenzflächenhaftung von mit Jod dotierten Titanoxid-Nanoröhrchen auf einem additiv hergestellten TiAl6V4-Implantat 加成法制造的 Ti6Al-4V 植入体上掺碘二氧化钛纳米管结构的合成、表征和界面粘附性 Synthese, Charakterisierung und Grenzflächenhaftung von mit Jod dotierten Titanoxid-Nanoröhrchen auf einem additiv hergestellten TiAl6V4-Implantat

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-18 DOI: 10.1002/mawe.202400193

P. Taweekitikul, A. A. Aliyu, D. Decha-Umphai, S. Tantavisut, J. Khamwannah, C. Puncreobutr, B. Lohwongwatana

{"title":"Synthesis, characterization, and interfacial adhesion of titania iodine-doped nanotubes architectures on additively manufactured Ti-6Al-4V implant\u0000 Synthese, Charakterisierung und Grenzflächenhaftung von mit Jod dotierten Titanoxid-Nanoröhrchen auf einem additiv hergestellten TiAl6V4-Implantat","authors":"P. Taweekitikul, A. A. Aliyu, D. Decha-Umphai, S. Tantavisut, J. Khamwannah, C. Puncreobutr, B. Lohwongwatana","doi":"10.1002/mawe.202400193","DOIUrl":"https://doi.org/10.1002/mawe.202400193","url":null,"abstract":"This study aimed to synthesize, characterize, and evaluate the adhesion strength of titania nanotubes (titania nanotubes) and iodine-doped titania nanotubes (I-titania nanotubes) architectures on the additively manufactured Ti-6Al-4 V (Ti64) implant surface. The titania nanotubes and I-titania nanotubes were synthesized through two stages of electrochemical anodization, whereby titania nanotubes are anodically fabricated through a conventional approach and then modified by replacing the ethylene glycol electrolyte with potassium iodide solution. The characterization results revealed the formation of α-Ti, β-Ti, and titanium iodide (TiI2) phases on the titania nanotubes and I-titania nanotubes surfaces. The morphology of titania nanotubes exhibits a consistent diameter, evenly distributed, well-ordered array, and densely packed nanotubular structures. Formation of a water-soluble fluoride-rich [TiF6]2 complexes in the inner titania nanotubes surface and incessant nanotube′s sidewall etching resulted in poor interfacial titania nanotubes adhesion to the titanium-substrate surface. Iodine doping on the titania nanotubes is believed to reduce the [TiF6]2 complexes accumulation and the titania nanotubes sidewall etching. This facilitates the adhesion and interfacial mechanical anchorage between the titania nanotubes and the surface of the Ti64 implant. The hardness and adhesion strength of the titania nanotubes increased by more than 50 %, due to the formation of a hard titanium iodide film at the titania nanotubes/I-titania nanotubes surfaces and interfaces.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"438-454"},"PeriodicalIF":1.2,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202400193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698697","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

Analysis and prediction of slurry erosion wear response of silicon carbide reinforced Al2124 composite using Taguchi – artificial neural network approach Analyse und Vorhersage der Schlammerosionsverschleißreaktion von siliziumkarbidverstärktem EN AW-2124-Verbundwerkstoff unter Verwendung des Taguchi-Ansatzes und künstliche neuronale Netzwerke

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-18 DOI: 10.1002/mawe.202400170

S. Annamalai, B. Anand Ronald, S. Mohamed Ameer Batcha

{"title":"Analysis and prediction of slurry erosion wear response of silicon carbide reinforced Al2124 composite using Taguchi – artificial neural network approach\u0000 Analyse und Vorhersage der Schlammerosionsverschleißreaktion von siliziumkarbidverstärktem EN AW-2124-Verbundwerkstoff unter Verwendung des Taguchi-Ansatzes und künstliche neuronale Netzwerke","authors":"S. Annamalai, B. Anand Ronald, S. Mohamed Ameer Batcha","doi":"10.1002/mawe.202400170","DOIUrl":"https://doi.org/10.1002/mawe.202400170","url":null,"abstract":"Slurry erosion is the prominent failure mechanism in the components exposed to particle entrained slurries. The slurry erosion wear behaviour of powder metallurgically processed Al2124 composite is investigated under slurry conditions with parameters like the impingement angle, impact velocity, slurry concentration, and stand-off distance. Aluminium oxide of 690 μm size is chosen as the erodent and the slurry jet erosion tester is used. The L16 orthogonal array is used for the experimental design and the most influencing parameters were identified using the analysis of variance (ANOVA) results. Among the parameters studied, slurry concentration and impact velocity are observed to be the most influencing parameters on the erosion rate and surface roughness. Further, the experimental results are compared with those predicted by the regression and artificial neural network (ANN) models. The wear profile analysis of eroded samples shows U and W shape profiles for oblique and normal impact angle conditions respectively. Al2124 composite exhibits ductile erosion behaviour. The material removal mechanisms are analysed by scanning electron microscopy.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"399-418"},"PeriodicalIF":1.2,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698696","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

Effect of active substrate cooling in wire arc additive manufacturing for manganese-rich low-carbon steel Auswirkung der aktiven Substratkühlung bei der additiven Fertigung mittels Lichtbogenschweißen mit einem manganreichen, kohlenstoffarmen Stahldraht

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-12 DOI: 10.1002/mawe.202400099

S. Barik, M. K. Mondal

{"title":"Effect of active substrate cooling in wire arc additive manufacturing for manganese-rich low-carbon steel\u0000 Auswirkung der aktiven Substratkühlung bei der additiven Fertigung mittels Lichtbogenschweißen mit einem manganreichen, kohlenstoffarmen Stahldraht","authors":"S. Barik, M. K. Mondal","doi":"10.1002/mawe.202400099","DOIUrl":"https://doi.org/10.1002/mawe.202400099","url":null,"abstract":"The abstract presents a study on the impact of cooling on the substrate during the wire arc additive manufacturing process on microstructure, mechanical properties, and corrosion behaviour of deposited specimens of manganese-rich low-carbon steel. Through a combination of experimental investigations and quantitative analyses, the study reveals the correlations between varying cooling rates and resulting material properties, such as finer grain structure. The cooling rate has been measured through the thermocouple temperature and observed time till room temperature. The average hardness increased from 172 HVN to 183 HVN and ultimate tensile strength increased from 526 MPa to 585.17 MPa which is 11.2 % higher with a significant increase in elongation from 22.3 % to 32.4 % due to the finer grain structure and reduced heat-affected zone. The result also shows how the corrosion behaviour changes with the solidification rate and also illuminates the effect on surface roughness. This work contributes to advancing the understanding of process-structure-property relationships in additive manufacturing and offers insights for cooling strategies to achieve desired material characteristics in this specific context.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"364-375"},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698817","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

Coercivity improvement for vanadium carbide (VC) doped sintered Nd−Fe−B magnets: Effectively tuning microstructure Verbesserung der Koerzitivkraft von mit Vanadiumkarbid (VC) dotierten gesinterten Nd−Fe−B−Magneten: Effektive Abstimmung des Gefüges

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-12 DOI: 10.1002/mawe.202400244

Z. Wei, L. Lele, Z. Xusheng, Y. Yang, X. Jun, M. Yanjiao, Z. Hong, L. Jitao

{"title":"Coercivity improvement for vanadium carbide (VC) doped sintered Nd−Fe−B magnets: Effectively tuning microstructure\u0000 Verbesserung der Koerzitivkraft von mit Vanadiumkarbid (VC) dotierten gesinterten Nd−Fe−B−Magneten: Effektive Abstimmung des Gefüges","authors":"Z. Wei, L. Lele, Z. Xusheng, Y. Yang, X. Jun, M. Yanjiao, Z. Hong, L. Jitao","doi":"10.1002/mawe.202400244","DOIUrl":"https://doi.org/10.1002/mawe.202400244","url":null,"abstract":"Vanadium carbide (VC) nano-particles were introduced into sintered Nd−Fe−B magnets for the purpose of grain refinement and coercivity enhancement. The effect of vanadium carbide (VC) addition on the microstructure and magnetic properties evolution of sintered Nd−Fe−B magnets was studied. Based on the characterization results, the additive vanadium carbide (VC) nano-particles mainly reacted with rare earth (RE)-rich phase to form ferrovanadium (FeV) phase, which rooted in the grain boundary. The ferrovanadium (FeV) phase inserted influence on the dissolution-precipitation process and acted as pinning sites and heterogeneous nucleation sites, which was favorable for the grain refinement. As a result, the coercivity of sintered magnets enhanced significantly from 13.62 kOe to 16.15 kOe without obvious decline of remanence when the vanadium carbide (VC) nano-particles additive amount increased from 0 wt.–% to 0.1 wt.–%. The above findings shed light on the microstructure manipulation to obtain high performance sintered magnets.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"476-483"},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698838","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

Formation mechanism of cerium-based inclusions and effect on microstructure and impact toughness in Q355ME Bildungsmechanismus von Einschlüssen auf Cer-Basis und Auswirkung auf Gefüge und Kerbschlagzähigkeit in Q355ML

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-12 DOI: 10.1002/mawe.202300335

X. Zhang, J. Zhi, X. Song, S. An

{"title":"Formation mechanism of cerium-based inclusions and effect on microstructure and impact toughness in Q355ME\u0000 Bildungsmechanismus von Einschlüssen auf Cer-Basis und Auswirkung auf Gefüge und Kerbschlagzähigkeit in Q355ML","authors":"X. Zhang, J. Zhi, X. Song, S. An","doi":"10.1002/mawe.202300335","DOIUrl":"https://doi.org/10.1002/mawe.202300335","url":null,"abstract":"The study explored the formation mechanisms of cerium-based inclusions and effects on the microstructure and impact toughness of industrial Q355ME steel through cerium addition. Formation of the inclusions was governed by both thermodynamic and kinetic factors. The results revealed that inclusions in cerium-free steel primarily consisted of magnesium aluminum spinel (with lesser manganese sulpfide), calcium aluminates (CaAl4O7, CaAl12O19), and calcium sulpfide with lesser aluminum oxide. Conversely, in cerium-containing steel, the inclusions predominantly included manganese sulpfide (with lesser magnesium aluminum spinel and a combination of cerium (III) sulpfide and cerium oxysulpfide), cerium (III) sulpfide-cerium oxysulpfide-calcium sulpfide (with lesser magnesium aluminum spinel) and calcium sulpfide. The introduction of cerium led to the disappearance of calcium aluminum oxide inclusions, producing smaller, more numerous, and spherical or ellipsoidal complex cerium-based inclusions. Furthermore, cerium addition resulted in a reduction in both the quantity and size of manganese sulpfide inclusions. Cerium-bearing complex inclusions contributed to grain refinement. Both transverse and longitudinal toughness values for cerium-containing steel were similar at identical temperatures, with longitudinal toughness surpassing transverse toughness in samples without cerium. Under identical conditions, especially at −80 °C, the impact toughness values of steel with cerium were significantly higher than those without cerium.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"353-363"},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698816","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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Machining performance of thermally modified wood in milling processes Zerspanungsleistung von thermisch modifiziertem Holz bei Fräsprozessen

IF 1.2 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-03-12 DOI: 10.1002/mawe.202300339

Q. Jin, Y. Jin, H. Dong, Z. Wu, F. Zhang, J. Wang, Z. Hao, P. Yang, X. Guo

{"title":"Machining performance of thermally modified wood in milling processes\u0000 Zerspanungsleistung von thermisch modifiziertem Holz bei Fräsprozessen","authors":"Q. Jin, Y. Jin, H. Dong, Z. Wu, F. Zhang, J. Wang, Z. Hao, P. Yang, X. Guo","doi":"10.1002/mawe.202300339","DOIUrl":"https://doi.org/10.1002/mawe.202300339","url":null,"abstract":"In order to study the machining properties of thermally modified wood during milling processes, milling experiments on thermally modified wood were carried out to analyse the effects of thermal modification temperature, cutting depth, feed speed and spindle speed on cutting force, cutting temperature and surface roughness. The experimental findings demonstrated that while cutting depth and feed speed were increased, cutting force, cutting temperature, and surface roughness rose, while these variables dropped as spindle speed was raised. Lower cutting depth, feed speed and higher spindle speed could be selected for better surface quality. As the thermal modification temperature rose, surface roughness increased and cutting force and cutting temperature decreased. The experimental results also showed that although the cutting force on thermally modified wood was reduced compared to untreated wood, the strength of the thermally modified wood was reduced, the cutting force was still more than the capacity of the wood cell walls, which led to a reduction in surface quality, and as the temperature was increased, the quality of the milled surface would deteriorate. This study provides a detailed analysis of the milling performance of thermally modified wood, which holds significant relevance for practical processing of thermally modified wood.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 3","pages":"339-352"},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698815","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