Materialwissenschaft und Werkstofftechnik最新文献_第2页

X-ray diffraction study on phase transformation of Ti-22Al-23Nb-1Mo-1Zr alloy during high-pressure torsion Röntgenbeugungsuntersuchung zur Phasenumwandlung einer TiAl22Nb23Mo1Zr1-Legierung unter Hochdrucktorsion Ti-22Al-23Nb-1Mo-1Zr合金在高压扭转下相变的x射线衍射研究

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-05 DOI: 10.1002/mawe.70020

J. W. Cheng, Q. L. Rao, C. X. Li

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Materialwiss. Werkstofftech. 7/2025 Materialwiss .Werkstofftech . 7/2025

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-03 DOI: 10.1002/mawe.70024

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Impressum: Materialwiss. Werkstofftech. 7/2025 刊头:Materialwiss .Werkstofftech . 7/2025

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-03 DOI: 10.1002/mawe.70022

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Cover Picture: (Materialwiss. Werkstofftech. 7/2025) 封面图片：(Materialwiss。Werkstofftech . 7/2025)

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-09-03 DOI: 10.1002/mawe.70023

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Failure investigation of AISI 321 austenitic stainless steel corrugated flexible hose in a reforming plant Untersuchung des Versagens eines gewellten flexiblen Schlauchs aus austenitischem Edelstahl 1.4541 in einer Reformieranlage AISI 321奥氏体不锈钢波纹软管在改造工厂的失败调查奥氏体1.4541波纹软管在改造工厂的失败调查

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-23 DOI: 10.1002/mawe.70004

B. Esmaeilzadeh, A. H. Asadi, H. Mirzadeh

{"title":"Failure investigation of AISI 321 austenitic stainless steel corrugated flexible hose in a reforming plant\u0000 Untersuchung des Versagens eines gewellten flexiblen Schlauchs aus austenitischem Edelstahl 1.4541 in einer Reformieranlage","authors":"B. Esmaeilzadeh, A. H. Asadi, H. Mirzadeh","doi":"10.1002/mawe.70004","DOIUrl":"https://doi.org/10.1002/mawe.70004","url":null,"abstract":"A failure investigation was conducted on a 321 stainless steel corrugated flexible hose in a reforming plant. Several of these flexible hoses failed while in service after being subjected to elevated temperatures and unexpected shutdowns. Visual inspections showed various surface deposits, and energy-dispersive spectroscopy elemental analysis detected the presence of chlorine, sodium, potassium, and sulfur, which are indicative of stress corrosion cracking and possible caustic stress corrosion cracking. Optical and scanning electron microscope imaging showed that the cracks were typically stress corrosion cracking-type with a branched pattern, initiating from the inner surface and propagating intergranular to the outer surface. Coarse and elongated δ-ferrite islands in the heat-affected zone were identified as crack propagation pathways. The average hardness measurements were approximately 240 HV0.5 ± 3 HV0.5 for the base metal, 257 HV0.5 ± 3 HV0.5 for the heat-affected zone, and 265 HV0.5 ± 3 HV0.5 for the weld metal. These variations, influenced by welding process parameters such as cooling rate, made the heat-affected zone a potential failure region in the flexible hose. The root causes of the failure of the flexible hoses were determined to be improper service conditions in terms of temperature control, unexpected shutdowns, and insufficient control of welding process parameters.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"988-996"},"PeriodicalIF":1.1,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935414","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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Microstructural and mechanical behavior of experimental Fe - 0.15 % C-15 % Mn steel subjected to different heat treatment conditions Mikrostrukturelles und mechanisches Verhalten von experimentellem Fe - 0,15 % C-15 % Mn-Stahl nach verschiedenen Wärmebehandlungen 实验铁的微观结构和机械行为- 0.15% C- 15% Mn钢受到不同的热处理条件实验铁的微观结构和机械行为- 0.15% C- 15% Mn钢不同热处理后的微观结构和机械行为

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-23 DOI: 10.1002/mawe.70006

N. M. López-Granados, G. Castañeda-García, C. A. Hernández-Bocanegra, J. A. Ramos-Banderas, E. Torres-Alonso, M. M. Machado-López

{"title":"Microstructural and mechanical behavior of experimental Fe - 0.15 % C-15 % Mn steel subjected to different heat treatment conditions\u0000 Mikrostrukturelles und mechanisches Verhalten von experimentellem Fe - 0,15 % C-15 % Mn-Stahl nach verschiedenen Wärmebehandlungen","authors":"N. M. López-Granados, G. Castañeda-García, C. A. Hernández-Bocanegra, J. A. Ramos-Banderas, E. Torres-Alonso, M. M. Machado-López","doi":"10.1002/mawe.70006","DOIUrl":"https://doi.org/10.1002/mawe.70006","url":null,"abstract":"This investigation studied the effect of different heat treatment routes on the microstructural behavior and mechanical properties of a high manganese steel. The 0.12 % carbon – 15 % manganese steel was manufactured from a commercial 1018 steel. It was hot rolled in successive stages until a 90 % reduction. The samples subjected to different heat treatment conditions were analyzed using conventional characterization techniques. The results showed that the mechanical behavior of the steel depends on the stacking fault energy but to a greater extent on the initial microstructure. The mechanical properties increased to tensile strength values > 1070 MPa and 70 % elongation when the steel was exposed to quenching and tempering treatment. The above was attributed to the twinning-induced plasticity mechanism verified in the zone with the highest load in the stress-vs.-strain curve and microstructurally evaluated in the deformation zone, where a completely twinned structure was observed. Nevertheless, martensite phases were also present. In contrast, when low cooling rates are used, the mechanical properties are not recovered. However, the hardening mechanisms and deformation-induced phase transformation are the same as hot rolling, quenching, and annealing conditions.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"978-987"},"PeriodicalIF":1.1,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935415","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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Effect of reductant on property and carbon dioxide sequestration for belite cement from phosphogypsum Auswirkungen von Reduktionsmitteln auf die Eigenschaften und die Kohlendioxidbindung von Belit-Zement aus Phosphorgips 还原剂对磷灰石水泥性能和二氧化碳封存的影响

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-22 DOI: 10.1002/mawe.70009

K. Li, D. Liu, X. Ma, H. Tan, Y. Taha, F. Dong, F. Yang

{"title":"Effect of reductant on property and carbon dioxide sequestration for belite cement from phosphogypsum\u0000 Auswirkungen von Reduktionsmitteln auf die Eigenschaften und die Kohlendioxidbindung von Belit-Zement aus Phosphorgips","authors":"K. Li, D. Liu, X. Ma, H. Tan, Y. Taha, F. Dong, F. Yang","doi":"10.1002/mawe.70009","DOIUrl":"https://doi.org/10.1002/mawe.70009","url":null,"abstract":"Gypsum can be decomposed at low-temperature by adding reductant, which is beneficial to obtain cement. The effects of different reductant on the phases of belite cement raw meals were studied by calcining at 1300 °C for 2 hours and using phosphogypsum as raw materials. Diffraction peaks of calcium sulfate were not observed in the samples when 10 wt.-% activated carbon was added and the molar ratio of calcium sulfide (CaS) to calcium sulfate (CaSO4) was 3, respectively. The Sulfur trioxide contents in the clinkers were 0.80 wt.-% and 0.64 wt.-%, respectively. The effect of carbonation curing on the cement properties was also studied. Carbonation curing can promote cement hydration and increase strength at 20 °C, 75 % relative humidity and 20 % carbon dioxide (CO2) concentration. As the carbonation curing age increased, the compressive strengths of the samples gradually enhanced. When 10 wt.-% carbon was employed as the reductant, compressive strengths of the samples were 15.5 MPa, 15.6 MPa, and 15.6 MPa after carbonation curing at 3 day, 7 day and 28 day, respectively. When calcium sulfide was employed as the reductant, the compressive strengths of the samples were 19.8 MPa, 27.2 MPa, and 34.1 MPa after carbonation curing for 3 day, 7 day and 28 day, respectively. The carbon dioxide sequestration contents of the samples prepared with a 10 wt.-% carbon and calcium sulfide reductant, were 11.6 % and 9.2 % after carbonation curing for 28 days, respectively. These findings demonstrate the potential to use phosphogypsum with various reductants to enhance the quality of belite cement and at the same time consume more carbon dioxide in the atmosphere during curing process.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"1038-1045"},"PeriodicalIF":1.1,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935521","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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A process simulation and optimization study of non-catalytic biodiesel synthesis from algae oil using supercritical methanol Eine Studie zur Prozesssimulation und Optimierung der nicht-katalytischen Biodieselsynthese aus Algenöl unter Verwendung von überkritischem Methanol 利用超临界甲醇从海藻油合成非催化生物柴油的过程模拟和优化研究

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-21 DOI: 10.1002/mawe.70000

A. B. Mahfouz, A. Abdulrahman, M. Alsaady, A. Ahmed, A. S. Hanbazazah

{"title":"A process simulation and optimization study of non-catalytic biodiesel synthesis from algae oil using supercritical methanol\u0000 Eine Studie zur Prozesssimulation und Optimierung der nicht-katalytischen Biodieselsynthese aus Algenöl unter Verwendung von überkritischem Methanol","authors":"A. B. Mahfouz, A. Abdulrahman, M. Alsaady, A. Ahmed, A. S. Hanbazazah","doi":"10.1002/mawe.70000","DOIUrl":"https://doi.org/10.1002/mawe.70000","url":null,"abstract":"The growing global demand for sustainable and renewable energy sources has intensified research efforts in biodiesel production. This study investigates the optimization and simulation of biodiesel production from Chlorella algae oil using a supercritical transesterification process without any catalyst. Avoiding the use of a catalyst eliminates potential issues associated with water content in the algae oil and reduces pretreatment costs. The research involves a two-step approach: conducting a simulation study to develop a validated process simulation model, followed by process optimization using response surface methodology (RSM). The input parameters - temperature, pressure, and residence time - are analyzed to maximize the biodiesel yield, which is the response function. A face-centered central composite design is utilized for experimental setup and statistical analysis of the results. Analysis of variance (ANOVA) is used for the optimization procedure. The statistical analysis highlights temperature as the most significant process parameter compared to residence time and pressure. This optimization process results in a maximum biodiesel yield of 99.6 % at an optimum temperature of 343.5 °C, 43.2 bar pressure, and 139.5 minutes of residence time. This study provides significant insights into non-catalytic biodiesel production from algae oil, presenting an effective method for improving biodiesel yield.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"1027-1037"},"PeriodicalIF":1.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934822","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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Reducing the sintering temperature of tungsten alloys with introducing of new W-Ni-Si compositions: evaluation of microstructure and mechanical properties Bewertung des Gefüges und der mechanischen Eigenschaften durch Senkung der Sintertemperatur von Wolframlegierungen durch Einführung neuer W-Ni-Si-Zusammensetzungen 通过引入新的W-Ni-Si成分来降低钨合金的烧结温度：评价微观结构和机械性能通过降低钨合金的烧结温度来评价结构和机械性能

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-21 DOI: 10.1002/mawe.70002

A. Pahlevani, H. Mohammadian Semnani, H. Abdoos

{"title":"Reducing the sintering temperature of tungsten alloys with introducing of new W-Ni-Si compositions: evaluation of microstructure and mechanical properties\u0000 Bewertung des Gefüges und der mechanischen Eigenschaften durch Senkung der Sintertemperatur von Wolframlegierungen durch Einführung neuer W-Ni-Si-Zusammensetzungen","authors":"A. Pahlevani, H. Mohammadian Semnani, H. Abdoos","doi":"10.1002/mawe.70002","DOIUrl":"https://doi.org/10.1002/mawe.70002","url":null,"abstract":"The high sintering temperature of tungsten heavy alloys is one of the problems in the production of this alloy. In this research, with the aim of reducing the sintering temperature, W-(10-x) Ni-x Si alloy with different amounts of silicon (x = 0.8 wt.%, 1.2 wt.% and 1.6 wt.%) were designed. These alloys were pressed at 1050 °C, 1100 °C and 1150 °C under a pressure of 30 MPa. The microstructure, composition, density and compressive properties of the samples were examined. The highest relative density was about 99.52% for W-8.8Ni-1.2Si alloys at 1150 °C. By increasing the silicon, the density and tungsten particle size initially increased and then decreased. Intermetallic and unwanted compounds were observed in the microstructure of the W-8.4Ni-1.6Si alloy. At 1100 °C, the compressive yield strength decreased with an increase in silicon, but at 1150 °C, it did not change significantly. In both temperatures, the compressive strain decreased with increasing silicon. At 1100 °C, the compressive yield strength of alloys with 0.8 wt. %, 1.2 wt. % and 1.6 wt. % silicon were about 1303 MPa, 1231 MPa, and 670 MPa, respectively. The results showed that W-Ni-Si alloys had higher density and compressive yield strength than common W-Ni-Fe alloys, although the sintering temperature was lower.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"966-977"},"PeriodicalIF":1.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934826","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

Additively fabricated innovative material: numerical prediction and experimental comparison of fracture toughness Additiv gefertigter innovativer Werkstoff: numerische Vorhersage und experimenteller Vergleich der Bruchzähigkeit 加法制造的创新材料：断裂韧性的数值预测和实验比较

IF 1.1 4区材料科学

Materialwissenschaft und Werkstofftechnik Pub Date : 2025-08-21 DOI: 10.1002/mawe.70008

V. Dhinakaran, R. Yang, M. Mohith, A. Pechimuthu, J. Kanishkaa, M. A. Browne, K. Sanjay, S. M. Kumar

{"title":"Additively fabricated innovative material: numerical prediction and experimental comparison of fracture toughness\u0000 Additiv gefertigter innovativer Werkstoff: numerische Vorhersage und experimenteller Vergleich der Bruchzähigkeit","authors":"V. Dhinakaran, R. Yang, M. Mohith, A. Pechimuthu, J. Kanishkaa, M. A. Browne, K. Sanjay, S. M. Kumar","doi":"10.1002/mawe.70008","DOIUrl":"https://doi.org/10.1002/mawe.70008","url":null,"abstract":"Every functional component in current industries requires unique and adaptable behavior for the materials. The process of forming new composite materials requires time and significant cost. The goal of this study is to fabricate novel materials using alternative layers of various materials, such as poly-lactic acid (M1), wood reinforced poly-lactic acid (M2) and ceramic reinforced poly-lactic acid (M3), fabricated using fused deposition modeling. The evaluation of fracture toughness is essential for materials to ensure its applicability for their intended use. Extended finite element method and experimentation were used to evaluate fracture toughness. The results show that, when compared to poly-lactic acid M1 (fracture toughness at mode I = 4.84 MPa√m), wood reinforced poly-lactic acid M2 (fracture toughness at mode I = 3.25 MPa√m), and ceramic reinforced poly-lactic acid M3 (fracture toughness at mode I = 5.76 MPa√m), the innovative material exhibits superior fracture toughness at mode I = 16.54 MPa√m (experimentally) and fracture toughness at mode I = 17.15 MPa√m (simulation). Equivalent experimental and extended finite element method outcomes provide two levels of assurance, giving fidelity and allowing incorporation of innovative material potential in lightweight application that demand high fracture resistance. This study offers first-hand experience for implementing innovative material in a variety of industrial and structural application.","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":"56 7","pages":"957-965"},"PeriodicalIF":1.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934825","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