Materialwissenschaft und Werkstofftechnik最新文献

{"title":"Gas tungsten arc welding of titanium tube: Microstructure, mechanical properties and numerical prediction of tensile strength\u0000 Wolframinertgasschweißen von Titanrohren: Gefüge, mechanische Eigenschaften und numerische Vorhersage der Zugfestigkeit","authors":"K. G. Kamal,&nbsp;R. Perumal,&nbsp;M. K. Subramaniyan,&nbsp;D. Veeman","doi":"10.1002/mawe.202400195","DOIUrl":"https://doi.org/10.1002/mawe.202400195","url":null,"abstract":"<p>Commercially pure titanium-grade 2 tube was fabricated using gas tungsten arc welding, which yielded perfect welds suitable for usage in several industries. Through conducting extensive testing and determining the optimal process parameters, this approach was optimized. The welded microstructure of the material was analyzed using optical microscopy which revealed columnar and equiaxed dendrites that were primarily composed of α and β-Titanium phases. These microstructural modifications, the product of constitutional supercooling and thermal histories, have significantly improved the mechanical properties of the welded pipe. The tensile strength increased by 3 % to 360.52 MPa ±2.5 MPa, while the strength of the base metal was 350.01 MPa ±2.5 MPa. Significantly, the welded pipe outperformed the base metal in terms of mechanical strength, and a 180° bend test demonstrated its ductility by obviating any signs of fracture. Microhardness evaluations showed that the weld metal had maximum values (172 HV 0.5 to 195 HV 0.5) while the base metal area had lower values (150 HV 0.5 to 157 HV 0.5). This in-depth examination demonstrates potential of commercially pure titanium-grade 2 for a range of industrial uses and offers insight into effective production of the material via gas tungsten arc welding.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"256-265"},"PeriodicalIF":1.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389170","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}

{"title":"Tungsten inert gas welding of zircaloy sheet: Mechanical properties and microstructural characterization\u0000 Wolframinertgasschweißen von Zirkoniumlegierungsblechen: Mechanische Eigenschaften und mikrostrukturelle Charakterisierung","authors":"V. Munusamy,&nbsp;G. Raju,&nbsp;D. Veeman,&nbsp;M. K. Subramaniyan","doi":"10.1002/mawe.202400141","DOIUrl":"https://doi.org/10.1002/mawe.202400141","url":null,"abstract":"<p>A zirconium-based alloy called zircaloy-2 is well known for its exceptional resistance to corrosion and low cross-sectional absorption of neutrons, which makes it a vital component for fuel cladding application in the nuclear industry. Tungsten inert gas welding is an effective method for joining zircaloy due to its precise heat control and inert gas shielding, ensuring high-quality welds with minimal contamination. This technique is particularly advantageous for applications demanding excellent corrosion resistance and mechanical properties. Fabrication of zircaloy-2 sheets through tungsten inert gas welding, guided by optimal process parameters derived from extensive trial-and-error testing, has yielded welds with impeccable quality suitable for deployment in nuclear, aerospace, and marine sectors. Analysis of welded microstructure of material revealed the presence of columnar and equiaxed dendrites near the weld metal, primarily composed of α-zirconium and β-zirconium phases, as evidenced by optical microscopy and x-ray diffraction. These microstructural variations, induced by constitutional supercooling and thermal histories, have significantly enhanced the mechanical properties of welded pipe. There is an increase of 4.3 % in strength as tensile strength of 477 MPa, while base metal exhibited strength of 457 MPa. Notably, the welded sheet exhibited superior mechanical strength compared to the base metal, with ductility demonstrated through a 180° bend test showing no signs of cracking proving its ductility. Microhardness assessments highlighted a decline in hardness within the base metal region (178 HV 0.5 to 186 HV 0.5), contrasting with peak values observed in the weld metal (215 HV 0.5 to 223 HV 0.5). This comprehensive investigation sheds light on the successful fabrication of zircaloy-2 via tungsten inert gas welding, emphasizing its potential for diverse industrial application.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"193-200"},"PeriodicalIF":1.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389171","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}

{"title":"Effect of rare earth cerium on the microstructure and properties of Cu-12Sn-4Ni alloy\u0000 Auswirkungen des Seltene-Erdelementes Cer auf das Gefüge und die Eigenschaften von CuSn12Ni4-Legierungen","authors":"Z. Jia,&nbsp;Z. Zhang,&nbsp;Y. Lu,&nbsp;J. Ji,&nbsp;J. Xiao,&nbsp;Y. Zhao","doi":"10.1002/mawe.202300413","DOIUrl":"https://doi.org/10.1002/mawe.202300413","url":null,"abstract":"<p>The microstructure and properties of the Cu-12Sn-4Ni alloy were analyzed by incorporating varying amounts of the rare earth element cerium. The study compared the alloy‘s microstructure, hardness, strength, friction, and wear. The results showed that adding 0.04 % of rare earth cerium refined the grain size of the Cu-12Sn-4Ni alloy from 75 μm to 200 μm to 75 μm to125 μm. The hardness of the alloy increased by 22.78 % to 135.897 HV 0.1 after adding cerium, and the tensile strength of the alloy reached its highest peak at 452.08 MPa, with an elongation of up to 64.735 % after fracture. Additionally, the wear rate of the material decreased by about 38.6 % to 1.61×10⁻⁵ mm³/mm. In conclusion, the addition of the rare-earth element cerium successfully improved the structure and properties of the Cu-12Sn-4Ni alloy, leading to enhanced hardness, strength, and wear resistance.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"181-192"},"PeriodicalIF":1.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389262","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}

{"title":"Advancement of tribological properties of AA 5083 aluminum matrix composite through the incorporation of micro- and nano-copper ferrite reinforcements synthesized from mulberry leaves (Morus alba L.) using a green synthesis method\u0000 Verbesserung der tribologischen Eigenschaften von Aluminium-Matrix-Verbundwerkstoffen AA 5083 durch die Einarbeitung von mit einer grünen Synthesemethode synthetisierten Mikro- und Nano-Kupferferrit-Verstärkungen aus Maulbeerblättern (Morus alba L.)","authors":"A. Işıtan,&nbsp;M. Sulak,&nbsp;F. Özen,&nbsp;V. Onar","doi":"10.1002/mawe.202400108","DOIUrl":"https://doi.org/10.1002/mawe.202400108","url":null,"abstract":"<p>This study investigates the enhancement of wear and friction performance in an AA 5083 matrix composite by incorporating copper ferrite (CuFe₂O₄) micro and nanoparticles, synthesized through a green process using mulberry (Morus alba L.) leaf extract for the first time. Two distinct composites are fabricated using the liquid metallurgy vortex-route method featuring an aluminum AA 5083 matrix and 0.2 % micro- and nano- copper ferrite reinforcement by weight. AA 5083 cast alloy under identical conditions. Characterization analyses were conducted to elucidate the composite properties. The composite samples are underwent wear tests against a steel disc under three different loads (10 N, 20 N, and 40 N) at two sliding distances (250 m and 500 m), maintaining a constant sliding speed of 2.6 m/s using a pin-on-disc wear test apparatus. The composites exhibited superior wear and friction performance compared to the unreinforced material. Overall, the nano-copper ferrite reinforced material showcased, on average, 33 % and 52 % lower wear rates than the unreinforced material, and 27 % and 31 % lower wear rates than the micro-copper ferrite reinforced material respectively.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"212-225"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389292","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}

{"title":"Friction stir welding of high iron-containing cast aluminum-silicon-magnesium alloys.\u0000 Rührreibschweißen von hoch eisenhaltigen Aluminium-Silizium-Magnesium-Gusslegierungen","authors":"C. Phongphisutthinan,&nbsp;W. Rattanathaworn,&nbsp;K. Waree,&nbsp;T. Suga,&nbsp;H. Liu,&nbsp;Y. Morisada,&nbsp;H. Fujii","doi":"10.1002/mawe.202200197","DOIUrl":"https://doi.org/10.1002/mawe.202200197","url":null,"abstract":"<p>High iron-containing cast aluminum-silicon-magnesium alloys have been developed for utilization recycled aluminum alloys. Iron-containing intermetallic compounds (IMCs) are commonly considered as harmful to mechanical properties in the cast aluminum alloys containing Fe impurities. Friction stir welding (FSW) is applied to weld butt joint between cast aluminum-silicon-magnesium-iron alloys plates with 1 wt.-%, 2 wt.-% and 4 wt.-% Fe contents. Iron-containing intermetallic compounds become finely fragmented and distributed in the aluminum matrix by friction stir welding. Friction stir welding clearly improves mechanical properties of the joints over the base materials. Fragmented intermetallic compounds in high iron-containing aluminum-silicon-magnesium alloys can enhance tensile strength over the commercial A356 aluminum alloy.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"173-180"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388945","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}

{"title":"Influences of composite additives and technological parameters on the microstructure and properties of electrolytic copper foil\u0000 Einfluss von Verbundwerkstoffzusätzen und technologischen Parametern auf das Gefüge und die Eigenschaften von elektrolytischer Kupferfolie","authors":"B. Zhang,&nbsp;W. C. Sun,&nbsp;E. Y. Liu,&nbsp;Y. F. Xu,&nbsp;M. R. Zhou,&nbsp;H. Cai,&nbsp;J. L. Zhang,&nbsp;T. Z. Jia","doi":"10.1002/mawe.202400186","DOIUrl":"https://doi.org/10.1002/mawe.202400186","url":null,"abstract":"<p>In this paper, the additives consisting of bis-(3-sulfopropyl)-disulfide, hydroxyethylcellulose and collagen additive compounding are used to fabricate ultra-thin copper foils with low roughness on titanium substrates. The results show that the deposited layers obtained at the electrodeposition time of 3 min, the electrolyte temperature of 50 °C and the output voltage of 2.5 V exhibit small grain size and good adhesion to the substrate. Meanwhile, the effects of the two-component additive and the three-component additive on the microstructures, surface roughness and electrochemical behavior of copper foils are studied. The x-ray diffraction results reveal that copper foils prepared by simultaneous introduction of 0.06 g/L bis-(3-sulfopropyl)-disulfide and 0.08 g/L collagen possess a dense and homogeneous structure with the smallest grain size and the lowest roughness, which is diminished by 26.17 %. The electrochemical results indicated that the SC additive had an inhibitory effect on the deposition of copper ions, while the SH additive exerted depolarizing effect in this electrolyte system, accelerating the deposition of copper particles, which was attributed to the antagonistic interaction between bis-(3-sulfopropyl)-disulfide and hydroxyethylcellulose that hindered the preferential adsorption of the additive at the surface protrusions, resulting in the decrease in the refinement effect of the bis-(3-sulfopropyl)-disulfide additive. Under the optimized process parameters, the increase in the deposition rate of Cu²⁺ balances the relationship between nucleation and growth of copper ions, which ultimately produces the copper foil with smooth surface and low roughness.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"235-250"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389306","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}

{"title":"Synthesis of FeSiAl/SrFe12O19 soft magnetic composite materials with low magnetic loss\u0000 Synthese von weichmagnetischen FeSiAl/SrFe12O19-Verbundwerkstoffen mit geringem magnetischen Verlust","authors":"L. Su,&nbsp;P. Wang,&nbsp;C. Y. Yu,&nbsp;L. P. Tao,&nbsp;S. Z. Shu","doi":"10.1002/mawe.202400174","DOIUrl":"https://doi.org/10.1002/mawe.202400174","url":null,"abstract":"<p>FeSiAl/SrFe₁₂O₁₉ soft magnetic composite material was prepared by mechanically crushing FeSiAl powder and M-type permanent magnet hexagonal ferrite powder according to a certain quality. Their structures, morphologies, and magnetic properties were studied using x-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), SQUID, and B−H analyzers. Compared to organic and other inorganic composite materials, SrFe₁₂O₁₉ has a higher thermal decomposition temperature. The x-ray diffraction pattern indicates that SrFe₁₂O₁₉ phase was detected in the sample. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) images show that powdered SrFe₁₂O₁₉ is dispersed on the surfaces and gaps of particles of different sizes. The magnetic analysis results indicate that although SrFe₁₂O₁₉ increases the hysteresis loss of the material, its good insulation reduces eddy current loss. When the content of SrFe₁₂O₁₉ is 2 wt.-%, the magnetic loss is the lowest. The lower magnetic loss and higher thermal decomposition temperature of this composite material make it have a wider range of application prospects.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"251-255"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389307","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}

{"title":"Effect of micro-sized blast furnace slag on physical, mechanical, and thermo-mechanical properties of bi-directional date palm fiber reinforced polymer composite\u0000 Einfluss von Hochofenschlacke in Mikrogröße auf die physikalischen, mechanischen und thermomechanischen Eigenschaften von bidirektionalen, mit Dattelpalmenfasern verstärkten Polymerverbundwerkstoffen","authors":"M. Pradhan,&nbsp;A. Patnaik,&nbsp;M. K. Banerjee,&nbsp;S. Mishra","doi":"10.1002/mawe.202400153","DOIUrl":"https://doi.org/10.1002/mawe.202400153","url":null,"abstract":"<p>This present research work focuses on studying the physical, mechanical, and thermo-mechanical behavior of blast furnace slag (BFS) in bi-directional date palm fiber reinforced hybrid polymer composites. During this investigation, the different weight percentage of blast furnace slag filler (from 3 wt.-% to 7 wt.-%) was added to date palm fiber to fabricate epoxy-based composite by vacuum assisted resign transfer molding (VARTM) technique under controlled pressure conditions. The fabricated composite were characterized for physical (density, void content, hardness), mechanical testing (tensile, flexural, inter-laminar shear strength, impact strength and fracture toughness) and thermal properties. The experimental result indicated varied rate of deterioration for tensile strength of the composites and the maximum tensile strength 69.51 MPa was obtained for blast furnace slag (3 wt.-%) and date palm fiber (30 wt.-%) hybrid composite. The optimum flexural and inter laminar shear strength has been obtained to be 85.72 MPa and 9.43 MPa for 7 wt.-% blast furnace slag-filled date palm fiber-epoxy hybrid composite. Similarly, in case of fracture toughness, blast furnace slag-filled composites, fracture toughness increases by approximately 20 %, 28 %, and 38 % respectively over unfilled composites. Based upon the results of the present research work can be afterward prolonged for automobile components and low-grade structural application in addition to optimal waste utilization to reduce environmental degradation.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"266-280"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388944","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}

{"title":"Experimentelle und rechnerisch validierte Methode zur Bestimmung der Mindesteinschraubtiefe von Schraubenverbindungen mit gefurchtem Mutterngewinde\u0000 Experimental and computationally validated approach for determining the minimum length of thread engagement for bolted joints with formed female threads","authors":"F. Kraemer,&nbsp;T. Binder,&nbsp;M. Klein,&nbsp;M. Oechsner","doi":"10.1002/mawe.202100376","DOIUrl":"https://doi.org/10.1002/mawe.202100376","url":null,"abstract":"<p>Beside the strength ratio of the material the length of thread engagement and the size of the pilot hole diameter determine the quasi-static strength of bolted joints with formed female threads. Pull-out tests with varied lengths of thread engagement and thread overlapping are carried out for different thread types and thread sizes to validate a new evaluation approach for the required minimum length of engagement. By means of a stress ratio of a perfectly formed thread and that of a thread to be evaluated the thread overlapping is taken into account in the design process.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"305-315"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202100376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388943","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}

{"title":"Hardness enhancement of commercially pure aluminium by a typical cyclic heat treatment process involving repeated ice-brine quenching\u0000 Erhöhung der Härte von Reinaluminium durch ein typisches zyklisches Wärmebehandlungsverfahren mit wiederholtem Abschrecken in Eis-Sole","authors":"J. Maity,&nbsp;A. S. Bansfore,&nbsp;A. Pal,&nbsp;B. Hazra,&nbsp;L. Roy,&nbsp;D. Mahato,&nbsp;A. B. Shav","doi":"10.1002/mawe.202400181","DOIUrl":"https://doi.org/10.1002/mawe.202400181","url":null,"abstract":"<p>A typical cyclic heat treatment process has been adopted up to four cycles on initially annealed commercially pure aluminium, primarily containing iron impurity, that involves short-duration (5 minutes) holding at 600 °C followed by ice-brine quenching in each cycle. As a consequence, a significant grain refinement effect and a gradual accumulation of lattice strain during the progress of cyclic heat treatment are observed in relation to an evolution of the regions of extremely low misorientation angle in the aluminium matrix. Apart from quench-in strain, the presence of grain boundary iron aluminide phase, possessing a different coefficient of thermal expansion than that of aluminium matrix, appears to be an additional reason for gradual lattice strain development. In addition, a preferred growth of (202) plane along [101] direction towards the final stage of cyclic heat treatment (four cycles) is also revealed. As a result of gradual lattice strain accumulation and grain refinement effects, the hardness of commercially pure aluminium is found to be considerably enhanced (98 HV 10) after 4 cycles of heat treatment as compared to an initial hardness (36 HV 10) in annealed condition.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 2","pages":"201-211"},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389291","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}