An experimental design methodology was applied to optimize cyclohexene oxidation catalyzed by V2O5/CeO2. The statistical study of the process was achieved through a two-level, 25-1 fractional factorial experimental design with five process parameters. The significant input variables (key factors) that influenced the performance of cyclohexene oxidation are the catalyst mass, percentage active phase (catalyst loading), temperature, molar ratio (Cyclohexene/TBHP), and the reaction time. The effect of the individual parameters andtheir interaction effects on the cyclohexene conversion, as well as the selectivity of cyclohexane epoxide, was determined, and a statistical model of the process was developed.The significant parameters influencing conversion were: mass, temperature-molar ratio and time-mass interaction; the other parameters had no effect. Significant parameters influencing selectivity are: molar ratio, other parameters have no effect. The optimal conditions were obtained for the catalyst weight of 0.1 g, temperature of 74°C, and reaction time of 4 h, with 15% V2O5/CeO2 as the active phase and tertiary-butyl hydroperoxide (TBHP) as oxidant.
The technology for directly extracting vanadium from titanomagnetite concentrate boasts low energy consumption, a streamlined process, and a high recovery rate, thereby holding immense significance for advancements in various fields, including Ti-Al-V alloys, vanadium catalysts, and all-vanadium redox flow batteries. Research findings on the oxidative roasting and V leaching process of magnesium compounds within this concentrate revealed optimal conditions for hydrochloric acid/sulfuric acid leaching: an acid concentration of 1.5 mol/L, a leaching temperature of 55℃, and a liquid-to-solid ratio of 8, when the leaching duration was set at 2 hours. Under these parameters, the introduction of 3 wt.% MgO, MgCO3, and Mg(OH)2 to titanomagnetite concentrate oxidative roasting led to ore phase reconstruction, subsequently enhancing the V leaching efficiency by 5.19%, 2.92%, and 4.21%, respectively. The highest V leaching efficiency of 64.4% was achieved with the addition of MgO for mineral phase reconstruction. This enhancement was attributed to the local shrinkage and pore-forming mechanisms within the lattice structure facilitated by MgO. Furthermore, calculations on the variations in the concentrations of 12 V-related ions in the V-H2O system across different pH values indicated that V predominantly existed in the form of VO2+ in the leachate. The H-free large ion in the V-H2O system, V10O286–, comprised 31.4% V at pH 6 and exhibited a tendency towards precipitation. The stable generation of this ion occurred within pH 5-6.3, which could be deemed as the optimal pH range for V precipitation in the V-H2O system.
The ab initio pseudopotential method relies on Density Functional Theory (DFT), utilizing the generalized gradient approximation (GGA) as outlined by Perdew-Burke-Ernzerhof (PBE). Implemented through the Siesta program, this method examines the structural and optical properties of the nickel-iron alloy (Fe-Ni) that crystallizes in the FeNi3 structure. This approach is highly regarded for its accuracy in predicting the crystal structure and properties of FeNi3. The computed structural parameters align closely with both theoretical and experimental data, confirming the reliability of these predictions. The lattice constants, calculated at zero pressure, match previously reported theoretical and experimental results. Furthermore, the computed properties, including the Band Structure, Total Density of States (DOS), and Partial Density of States (PDOS), and elastic constants values for the alloy, suggesting its suitability for specific applications in targeted fields.
An automobile steel with density of 7.55 g/cm3 and composition consisting of Fe-1.5Al-2Mn-0.18C was successfully produced, exhibiting remarkable tensile strength of 897.7 MPa and ductility of 19.3%. This steel’s microstructural transformations and their contributions to strength were analyzed after undergoing coiling treatments at temperatures of 400°C, 500°C, and 600°C. Our findings reveal an inverse relationship between the coiling temperature and both the steel’s strength and the product of strength and elongation (PSE), whereas ductility shows a positive correlation with rising coiling temperatures. The primary factors accounting for these variations in strength across different coiling temperatures are phase transformation strengthening, grain refinement strengthening, dislocation strengthening, and precipitation strengthening, with phase transformation and dislocation strengthening being the most influential. Furthermore, the reduction in size and volume fraction of (Ti, V)C particles observed at lower coiling temperatures is attributed to differences in carbide ripening and nucleation processes. In conclusion, this optimized low Mn-Al alloy chemistry combined with a hot rolling process provided a novel method to produce the automobile with low density and acceptable mechanical properties.
Archives of Metallurgy and Materials is a quarterly journal of Polish Academy of Sciences and Institute of Metallurgy and Materials Science PAS, which has published continuously since 1954, scientific papers in English in the following fields: metallurgy and materials science, foundry, mechanical working of metals, thermal engineering in metallurgy, thermodynamic and physical properties of materials, phase equilibria in the broad context and diffusion.
In addition to the regular, original scientific papers and conference proceedings, invited reviews presenting the up-to-date knowledge and monothematic issues devoted to preferred areas of research will be published. Submission of a paper implies that it has not been published previously, that it is not under consideration for publication elsewhere, and that if accepted it will not be published elsewhere in the same form.
When preparing the manuscript, please pay attention to the following rules:
1. Manuscript submission
1.1. Electronic submission: All submissions must be made electronically via Editorial System https://www.editorialsystem.com/editor/amm/articles/list/?qt=NEW
1.2. Manuscript should not exceed 12 pages of full-size paper (A4), must be double spaced (please use 12 point font), with generous margins, and the pages must be numbered. Authors should submit an electronic file of their manuscript in Microsoft Word format (minimum: version 2000).
1.3. All manuscripts must be written in good English. Both British and U.S. English are acceptable but Authors should be consistent in their usage. It is sole responsibility of the Authors to make sure that the manuscript is grammatically correct and spell checked. Authors are strongly encouraged to have the manuscript proofread by a native speaker of English or a language professional, before it is submitted to the editorial office. Papers written in poor English will be automatically rejected without being subjected to review.
1.4. Authors should submit an electronic copy of final version of their paper in Microsoft Word format, schemes (sketches) and figures saved as .eps, .jpeg, or .tiff.
1.5. Articles submitted for publication should include abstract and maximum 5 key words.
1.6. Please adhere to the following order of presentation:
Author(s) with first names in full.
Affiliation(s): in a short form (Institution, City, Country). Use the superscripts (*, **, . . .) after the Authors’ names in case of different affiliations.
Title: All words in lower case (first letter of first word capitalized).
Abstract: maximum 10 lines, including primary objective, research design, methods and procedures, main outcomes and results, conclusions. Do not use abbreviations in the abstract.
Keywords: 5 maximum.
Main text: Begin on the second page with Introduction, followed by Experimental (Materials and Methods) and/or Theory section, Results, Discussion, and end with Conclusion section and Acknowledgement. When appropriate the Authors may choose to combine Results section and Discussion section into one Results and discussion section. Make sure the text in sections is divided logically into paragraphs. Use the decimal system for sections, subsections and (at the most) subsubsections, as exemplified in the headings of these instructions. All abbreviations should be spelled out the first time they are introduced in text or references. Thereafter the abbreviation can be used.
Appendices
References
Correspondence address: title, name, postal address, telephone and e-mail address of the corresponding Author.
Figure captions
Tables
2. Manuscript preparation
2.1. Formulae, equations and units
Formulae and equations should be typed on separate lines and numbered consecutively in parentheses on the right side (1) . . . (n). Vectors must be indicated as such. Size of symbols should be kept uniform for all equations in the manuscript. Formulae and equations should be referred to in the text as follows: Eq. (1). Numbers and units must be separated by a space, e.g. 5.5 wt.%, 273.15 K, 1013 MPa, etc. The only exception are angle degrees, e.g. 90°.
2.2. Figures
Figures are usually printed in reduced size and this should be taken into account when preparing them. This applies also to the photographs. For the best results, make sure that lettering on illustrations is at least 2 mm high after reduction. Figure captions should be typed on a separate page at the end of manuscript. The same refers to tables and all sorts of lists. The appropriate place of tables and figures in the text should be indicated by < Tab 1 > or written in separate line. Figures should be referred to in text as follows: Fig. 1. Each figure should have its own caption explaining the content without reference to the text. Line drawings will normally be printed in column width of 85 mm. After this reduction all figures should have the same final letter size of at least 2 mm. The style of labeling of the coordinates must be uniform for all drawings. The magnification must be indicated by a labeled scale marker on the micrograph itself, not drawn below it. For optimum printing quality micrographs should be saved as .eps or .tiff at a resolution of at least 300 dpi while line drawings at a resolution of at least 600 dpi.
2.3. Tables
Tables together with captions should be typed on separate page at the end of manuscript. Tables are to be numbered consecutively using Arabic numbers in the text (TABLE 1 . . . n). The captions should explain the symbols used in the heading and in the left hand column. Tables should be referred to in the text as follows: TABLE 1.
2.4. References
A new type of literature provision has been in force since 2020 – modified vancouver style.
Please follow the instructions below.
References should be typed on separate pages and numbered consecutively applying the system accepted by the Quarterly (initials and names all authors, title of the article (obligatory), journal title [abbreviated according to the Journal Title Abbreviations of Web of Science: http://library.caltech.edu/reference/abbreviations/ everyone abbreviation should be end with a dot – example. Arch. Metall. Mater.] or book title; journal volume or book publisher; page spread; publication year in bracket, full DOI number).
Please note the correct layout punctation (commas and periods), and spaces. Please note the arrangement of dots, commas and spaces.
First, we write the initial of the name, dot, space, surname, volume must be written BOLD, at the name of the authors, do not write a word “and” write only a comma. We give the year of publication at the end of the sentence in brackets and DOI number (full notation and linked).
The use of DOI numbers (full notation and linked) is mandatory for each paper and should be formatted as shown in the examples below:
3. Samples
Journals:
[1] L.B. Magalas, Development of High-Resolution Mechanical Spectroscopy, HRMS: Status and Perspectives. HRMS Coupled with a Laser Dilatometer. Arch. Metall. Mater. 60 (3), 2069-2076 (2015). DOI: https://doi.org/10.1515/AMM-2015-0350
[2] E. Pagounis, M.J. Szczerba, R. Chulist, M. Laufenberg, Large Magnetic Field-Induced Work output in a NiMgGa Seven-Lavered Modulated Martensite. Appl. Phys. Lett. 107, 152407 (2015). DOI: https://doi.org/10.1063/1.4933303
[3] H. Etschmaier, H. Torwesten, H. Eder, P. Hadley, Suppression of Interdiffusion in Copper/Tin thin Films. J. Mater. Eng. Perform. (2012).
DOI: https://doi.org/10.1007/s11665-011-0090-2.
Books:
[4] K.U. Kainer (Ed.), Metal Matrix Composites, Wiley-VCH, Weinheim (2006).
[5] K. Szacilowski, Infochemistry: Information Processing at the Nanoscale, Wiley (2012).
[6] L. Reimer, H. Kohl, Transmission Electron Microscopy: Physics of Image Formation, Springer, New York (2008).
Proceedings or chapter in books with editor(s):
[7] R. Major, P. Lacki, R. Kustosz, J. M. Lackner, Modelling of nanoindentation to simulate thin layer behavior, in: K. J. Kurzydłowski, B. Major, P. Zięba (Eds.), Foundation of Materials Design 2006, Research Signpost (2006).
Internet resource:
[8] https://www.nist.gov/programs-projects/crystallographic-databases, accessed: 17.04.2017
Academic thesis (PhD, MSc):
[9] T. Mitra, PhD thesis, Modeling of Burden Distribution in the Blast Furnace, Abo Akademia University, Turku/Abo, Finland (2016).
3. Fee
We would like to inform the Authors that from July 1, 2024, the fee is increased and will amount to 300 EUR plus 23%VAT (1250 PLN net for authors with Polish affiliation).
4. Review and proofread process
4.1. Peer review process
All submitted manuscripts are subject to review by recognized experts appointed by the Editor-in-Chief and members of the Editorial Board. Authors are requested to provide in the editorial system the names and contact details (affiliations and valid e-mail addresses) of two experts who could act as reviewers. Only one of these names may be from the same country as the affiliation of the corresponding author. The decision to appoint a reviewer is solely at the editor's discretion. When the article requires corrections, the authors are required to respond in writing to the comments of the Editor and Reviewers and to make corrections to the manuscript. The decision to reject the article is made by the Editorial Board, and the final decision is made by the Editor, who may appoint another reviewer if necessary. The reviewers remain anonymous to the authors and their identity cannot be disclosed by the Editor.
4.2. Submission of a revised manuscript
When a manuscript revision is requested, Authors should return a revised version of their manuscript to the editorial office as soon as possible. Acting quickly can ensure rapid publication if the article is finally accepted for publication in Arch Metall Mater. If this is the first revision of the article, Authors are requested to return the revised manuscript within 14 days. If this is the second revision, Authors are requested to return the revised manuscript within 7 days.
4.3. Final revision
Authors will receive a pdf file via the editorial system in the PROOF tab of the proof of the article in a version that is suitable for publication. This is the last opportunity to review the article before its publication on the journal's website, Czytelnia PAN platform and WoS. No changes or modifications can be made after publication. Therefore, authors are requested to thoroughly review the manuscript and prepare a separate document containing all changes that should be introduced.
5. Original version
Starting with issue 1 / 2000, volume 45, the Archive of Metallurgy and Materials is published in electronic form on the platform Reading Room PAS as the original version (reference). The platform Reading Room PAS sends files to WoS within 6 weeks of publication of the full content of a given issue. The printed version is printed by the Warsaw Scientific Printing House of the PAN.
6. Prevent cases of plagiarism
Readers should be sure that the authors present the results of their work transparently, fair and honest, regardless of whether they are the direct authors, or used the help of a specialized entity (natural or legal person). To prevent cases of plagiarism, the Editorial Office will require that the Authors disclosed the contribution of individual Authors in the creation of manuscript (with their affiliations and contributions, i.e. the information who is responsible for: research concept and design, collection and/or assembly of data, data analysis and interpretation, writing the manuscript) in the document "Ghostwriting statement paper".Funding sources (together with grant number) must also be revealed. The corresponding Author will bear the main responsibility for the manuscript. Detected cases will be exposed, including notifying the appropriate entities (institutions employing the Authors, scientific societies, associations of editors of scientific journals, etc.).
7. License type
Articles are printed in an open access and distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0, https://creativecommons.org/licenses/by-nc/4.0/deed.enThis license allows others to distribute, remix, modify and build upon the author's work, even commercially, as long as the author of the original work is attributed to him.
Submission of an article to the journal is unequivocal to expressing consent to the publication in both paper and electronic form.
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