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Metals
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Selected Papers from 5th International Conference on New Materials and...
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Selected Papers from 5th International Conference on New Materials and High Technologies (NMHT-2022)

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 4167

Special Issue Editors

Dr. Dmitrii E. Andreev

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Guest Editor
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences (ISMAN), Academician Osipyan str., 8, Chernogolovka 142432, Russia
Interests: effect of gravity forces on SHS processes; modeling of combustion processes; fundamentals of new processes for production of intermetallic, ceramic, and cermet composites; aluminothermic SHS reactions; cast materials
Special Issues, Collections and Topics in MDPI journals
Dr. Oksana V. Ivanova

E-Mail Website
Guest Editor
Tomsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences (TSC SB RAS), 10/4 Akademicheskii Prospekt, Tomsk 634055, Russia
Interests: numerical simulation; solid-phase chemical transformations; shock-wave loading; explosive compaction; energetic materials; finite element method; exothermic reactions; powder mixtures

Special Issue Information

Dear Colleagues,

The Special Issue outlines recent advancements in the consolidation/combustion-aided production of materials as an important branch of modern science and technology. Novel technologies for manufacturing promising materials stimulate the development of basic sciences and contribute significantly to the evolution of traditional production methods such as powder metallurgy, conventional/pressure sintering, casting, extrusion, hot isostatic pressing, etc.

The Issue will be a good platform for researchers to discuss a wide range of scientific, engineering, and technical problems in the fields of self-propagating high-temperature synthesis; experiments and numerical simulation examining reacting nonisothermal synthesis; structural dynamics and kinetics of combustion in heterogeneous systems; filtration combustion and microcombustion of gases; synthesis of silicide and refractory nitrogen materials; synthesis of special powder materials (for chemistry, medicine, metallurgy, etc.); functional porous materials and coatings; high technologies for new materials: explosion synthesis, solution combustion, welding, sintering, hybrid techniques, etc.; consolidation of powder materials; additive manufacturing: technology, application, and research opportunities; synthesis of diamond, graphene, carbon nanotubes, and related materials; functionalization of carbon materials and their interfaces; and high-tech applications of carbon materials.

The Special Issue will combine leading papers on the subject area and the best manuscripts from the 5th International Conference on New Materials and High Technologies (NMHT-2022), which will be held as part of the 8th International Congress on Energy Fluxes and Radiation Effects (EFRE) on 2–8 October 2022 in Tomsk, Russia. For more detailed information, please visit the website: https://efre2022.hcei.tsc.ru/information/organization/nmht.html.

The major topics covered in NMHT-2022 will include:

  • Nonisothermal synthesis, functional materials and coatings;
  • Combustion: fundamentals and applications;
  • Welding, surfacing and additive manufacturing;
  • Carbon materials in electronics and photonics.

Dr. Dmitrii E. Andreev
Dr. Oksana V. Ivanova
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Keywords

  • powder metallurgy
  • combustion synthesis
  • self-propagating high-temperature synthesis
  • explosion synthesis
  • sintering
  • additive manufacturing
  • consolidation of powder materials

Published Papers (3 papers)

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Research

8 pages, 1658 KiB  
Communication
Experimental Study of Stretched Premixed Flame Stabilized in a Flat Channel near a Heated Wall
by Sergey Mokrin, Vladimir Gubernov and Sergey Minaev
Metals 2023, 13(2), 391; https://doi.org/10.3390/met13020391 - 14 Feb 2023
Viewed by 1020
Abstract
In this work, the behavior of a lean premixed stretched flame stabilized in a flat channel near a heated wall was studied. Dependences of the flame front position on the stretch rate parameter at temperatures of the heated wall of 1000 and 1200 [...] Read more.
In this work, the behavior of a lean premixed stretched flame stabilized in a flat channel near a heated wall was studied. Dependences of the flame front position on the stretch rate parameter at temperatures of the heated wall of 1000 and 1200 K and the combustible mixture composition (ϕ = 0.7 and 0.6) were obtained experimentally. The reduced thermal diffusive model was used in numerical simulation for an explanation of obtained experimental results. Theoretical estimates are in qualitative agreement with the experiment. The performed qualitative analysis may be useful in estimation of the combustion product temperature and the residence time of the nanoparticles forming in combustion products before their impact with the hot wall. Full article
(This article belongs to the Special Issue Selected Papers from 5th International Conference on New Materials and High Technologies (NMHT-2022))
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10 pages, 5944 KiB  
Article
Oxidation-Affected Erosion of Porous Ni-Al Intermetallic Alloy in Combustion Applications: Pore-Scale Simulation
by Igor Yakovlev, Daniil Astakhov, Sergey Zambalov, Nikita Pichugin and Anatoly Maznoy
Metals 2023, 13(2), 277; https://doi.org/10.3390/met13020277 - 30 Jan 2023
Cited by 1 | Viewed by 1265
Abstract
Advanced high-temperature oxidation resistance is a crucial characteristic of metallic materials in porous burners. Extreme combustion conditions could lead to oxidation-affected erosion of porous media at a long-time period of burner operation. In this paper, we numerically simulated oxide scale growth at a [...] Read more.
Advanced high-temperature oxidation resistance is a crucial characteristic of metallic materials in porous burners. Extreme combustion conditions could lead to oxidation-affected erosion of porous media at a long-time period of burner operation. In this paper, we numerically simulated oxide scale growth at a porous radiant burner fabricated by Ni-Al intermetallic alloy using the combustion synthesis method, focusing on the structure degradation caused by periodic oxide scale spallation. A three-dimensional geometrical model of a porous intermetallic scaffold was obtained by scanning the porous burner using the X-ray CT technique. The surface erosion was modeled by the surface reconstruction based on calculated values of spalled oxide layer thickness. The simulation revealed that the submerged flame results in non-uniform distribution of the temperature at the solid surface. Such non-isothermal conditions lead to a two-times thicker oxide scale at the external surface of the burner. Thin struts of the intermetallic scaffold are prone to oxidation-affected erosion first, which forms discontinues and further fragmentation. The porous scaffold could lose about 50% of initial weight before fragmentation under conditions with intense oxide spallation. In such large structural degradation, the average flow velocity could reduce by a factor of 3, leading to changing of flame stabilization region. Full article
(This article belongs to the Special Issue Selected Papers from 5th International Conference on New Materials and High Technologies (NMHT-2022))
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11 pages, 4091 KiB  
Article
Experimental Study of the Microhardness and Microstructure of a Copper Specimen Using the Taylor Impact Test
by Sergey A. Zelepugin, Nadezhda V. Pakhnutova, Olga A. Shkoda and Evgenii N. Boyangin
Metals 2022, 12(12), 2186; https://doi.org/10.3390/met12122186 - 19 Dec 2022
Cited by 6 | Viewed by 1342
Abstract
One commonly used method for characterizing the dynamic characteristics of materials is the Taylor impact test. This method measures the dynamic yield strength of cylindrical specimens and determines material model constants required for the numerical simulation of the behavior of materials subjected to [...] Read more.
One commonly used method for characterizing the dynamic characteristics of materials is the Taylor impact test. This method measures the dynamic yield strength of cylindrical specimens and determines material model constants required for the numerical simulation of the behavior of materials subjected to high-velocity deformation. The purpose of this work is to investigate the microhardness and microstructure of copper specimens at different impact velocities using the Taylor impact test. This paper describes experiments performed on copper specimens (OFHC 99.9%, M1) using a single-stage light-gas gun with impact velocities in the range of 150–450 m/s. After impact, the specimens were cut along the symmetry axis to measure the microhardness and the grain size of the microstructure. Microhardness in the entire area exceeded the initial value for all investigated velocities. The averaged microhardness curves were obtained for each specimen to identify four deformation zones and determine their dimensions depending on the impact velocity. The average grain size in the entire deformed specimen became smaller than in the starting specimen. The study of the microstructure of the specimens has shown that the grain size distribution corresponds to the four deformation zones in the copper specimens. Full article
(This article belongs to the Special Issue Selected Papers from 5th International Conference on New Materials and High Technologies (NMHT-2022))
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