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Technologies
Special Issues
Processing and Fabrication of Advanced Materials
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Processing and Fabrication of Advanced Materials

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Innovations in Materials Processing".

Deadline for manuscript submissions: closed (30 September 2019) | Viewed by 24165

Special Issue Editors

Dr. Caterina Zanella

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Guest Editor
Department of Materials and Manufacturing, School of Engineering, Jönköping University, P.O. Box 1026, SE-551 11 Jönköping, Sweden
Interests: electrochemistry; electrodeposition; corrosion; coatings
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Anders E. W. Jarfors

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Guest Editor
Department of Materials and Manufacturing, School of Engineering, Jönköping University, 55111 Jönköping, Sweden
Interests: casting; aluminium; magnesium; heat treatment; mechanical behavior; fatigue; process microstructure performance; additive manufacturing
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Attila Diószegi

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Guest Editor
Department of Materials and Manufacturing, School of Engineering, Jönköping University, P.O. Box 1026, SE-551 11 Jönköping, Sweden
Interests: molding materials; liquid iron metallurgy; melt treatment and inoculation; mold filling; mold-metal interface interactions; solidification; nucleation and crystal growth; austenite and graphite formation mechanisms; casting defect formation mechanisms; static and dynamic tensile properties; thermophysical properties; volume change related thermal analyses; metallography and stereology; modelling and simulation of casting phenomena
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tirumalai S. Srivatsan

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Guest Editor
Department of Mechanical Engineering, College of Engineering, The University of Akron, Akron, OH 44325-3903, USA
Interests: materials processing; materials characterization; microstructure; mechanical behavior of materials; failure analysis; fatigue and fracture behavior of structures; manufacturing processes; finite element stress analysis; emerging materials: processing, properties and applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The current Special Issue focuses on recent advances made in the field of materials and their manufacturing, with the primary purpose being to develop a deep understanding of interdisciplinary developments in all aspects related to the processing and fabrication of advanced materials focusing on metals. This Special Issue aims to provide a collection of the latest advances on aspects related and relevant to materials processing and fabrication from both a research perspective as well as an engineering and industrial and application perspective in the fields of:

  • Materials
    • Metals and metal–matrix Composites
    • Surface coatings
    • Magnetic materials
    • Metallic glasses
    • Materials for wind-power systems
    • Intermetallic(s)
    • Intermetallic–Matrix Composites
    • Nanomaterials and Nanocomposites
    • Functional Materials
  • Manufacturing Technologies
    • Additive manufacturing
    • Casting
    • Microwave processing of materials
    • Powder metallurgy
    • Machining
  • Materials Simulations
    • Process and microstructure relations
    • Process and defect formation
    • Materials properties predictions
    • Component behavior

Where possible, presentations on the above fields should relate to applications in one of the following seven industry focus areas:

  • Aerospace
  • Electronics and communications
  • Automotive
  • Energy storage/harvesting
  • Applications and utilities
  • Marine
  • Sport goods
  • Biomedical and healthcare
  • Handheld tools and devices
  • Heavy equipment, machinery, and goods
  • Failure analysis: Implications and applications

Dr. Caterina Zanella
Prof. Dr. Anders E. W. Jarfors
Prof. Dr. Attila Diószegi
Prof. Dr. T. S. Srivatsan
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. Technologies 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 1600 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

  • material characterization
  • mechanical properties
  • mechanical behavior of materials
  • microstructure
  • materials processing
  • advanced materials
  • component behavior
  • casting
  • powder metallurgy
  • sheet metal forming

Published Papers (4 papers)

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Research

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17 pages, 3350 KiB  
Article
A Cold-Pressing Method Combining Axial and Shear Flow of Powder Compaction to Produce High-Density Iron Parts
by Sergey N. Grigoriev, Alexandr M. Dmitriev, Natalya V. Korobova and Sergey V. Fedorov
Technologies 2019, 7(4), 70; https://doi.org/10.3390/technologies7040070 - 24 Sep 2019
Cited by 5 | Viewed by 6159
Abstract
Highly performance methods for cold pressing (cold die forging) of preforms from iron powder with subsequent heat treatment and producing ready parts made of powder are described in the paper. These methods allow fabricating parts with smooth surfaces and improved mechanical characteristics—porosity, tensile [...] Read more.
Highly performance methods for cold pressing (cold die forging) of preforms from iron powder with subsequent heat treatment and producing ready parts made of powder are described in the paper. These methods allow fabricating parts with smooth surfaces and improved mechanical characteristics—porosity, tensile strength. Application of the traditional design set-up with a single-axial loading is restricted to high stresses in the dies to deform the preforms that lead to cracks formation. New powder compaction schemes by applying active friction forces (shear-enhanced compaction) make it possible to unload dies and produce high-quality parts by cold pressing. The scheme allows moving the die in the direction of the material flow with a velocity that exceeds the material flow velocity. Full article
(This article belongs to the Special Issue Processing and Fabrication of Advanced Materials)
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14 pages, 3773 KiB  
Article
Surface Hardening of Massive Steel Products in the Low-pressure Glow Discharge Plasma
by Sergey Grigoriev, Alexander Metel, Marina Volosova, Yury Melnik, Htet A. Ney and Enver Mustafaev
Technologies 2019, 7(3), 62; https://doi.org/10.3390/technologies7030062 - 28 Aug 2019
Cited by 4 | Viewed by 5083
Abstract
A process vacuum chamber is filled with a homogeneous plasma of glow discharge with electrostatic electron confinement, which is used for surface hardening of massive products. At the current of 2–20 A and the gas pressure ranging from 0.1 to 1 Pa the [...] Read more.
A process vacuum chamber is filled with a homogeneous plasma of glow discharge with electrostatic electron confinement, which is used for surface hardening of massive products. At the current of 2–20 A and the gas pressure ranging from 0.1 to 1 Pa the discharge voltage amounts to 350–500 V. When a bias voltage of 2 kV is applied to an immersed in the plasma hollow cylinder with a mass of 15 kg, electrical power spent on heating it by accelerated ions exceeds by an order of magnitude the power spent on the discharge maintenance. The massive cylinder is heated up to 700 °C for 15 min. When argon mixture with nitrogen (30%) is used, the nitriding for 3h results in an increase in the surface hardness from 400 up to 1000 HV50 and the nitrided layer thickness grows to ~100 μm. The nitriding rate is enhanced by a high degree of nitrogen dissociation due to decomposition by fast electrons and surface structural defects due to bombardment by high-energy ions. Full article
(This article belongs to the Special Issue Processing and Fabrication of Advanced Materials)
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9 pages, 16218 KiB  
Article
Stress-Strain Response Determination during Incremental Step Tests and Variable Loadings on Flat Specimens
by Domen Šeruga, Marko Nagode and Jernej Klemenc
Technologies 2019, 7(3), 53; https://doi.org/10.3390/technologies7030053 - 04 Aug 2019
Cited by 4 | Viewed by 5569
Abstract
For stress-strain response simulations and damage prediction of cyclically loaded mechanical components, it is crucial to determine both the stress-strain and durability curves of the materials sued. Round and flat specimens can be used for this purpose, either following standard recommendations for their [...] Read more.
For stress-strain response simulations and damage prediction of cyclically loaded mechanical components, it is crucial to determine both the stress-strain and durability curves of the materials sued. Round and flat specimens can be used for this purpose, either following standard recommendations for their geometry or by designing a special geometry which enables special requirements, such as initial cracks of various shapes, attachment of an extensometer, special grips for raised temperatures, and so on. However, especially in the case of flat specimens having a slender shape, buckling can occur before the stress or strain values reach a sufficient magnitude in compression. To avoid this, an anti-buckling support can be attached to the specimen, which prevents the occurrence of buckling. In turn, friction occurs between the specimen and the anti-buckling support, which affects the measurement of the stress. If a special sensor is attached under the anti-buckling support, the friction force can be measured and subtracted from the stress signal, leaving only the stress-strain response of the material under investigation. In this study, two materials were investigated during incremental step and variable loading tests: The aluminium alloy AlMgSi0.5 and a biodegradable polylactide. Full article
(This article belongs to the Special Issue Processing and Fabrication of Advanced Materials)
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Review

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14 pages, 9581 KiB  
Review
Advanced Coatings by Thermal Spray Processes
by Shrikant Joshi and Per Nylen
Technologies 2019, 7(4), 79; https://doi.org/10.3390/technologies7040079 - 01 Nov 2019
Cited by 30 | Viewed by 6898
Abstract
Coatings are pivotal in combating problems of premature component degradation in aggressive industrial environments and constitute a strategic area for continued development. Thermal spray (TS) coatings offer distinct advantages by combining versatility, cost-effectiveness, and the ability to coat complex geometries without constraints of [...] Read more.
Coatings are pivotal in combating problems of premature component degradation in aggressive industrial environments and constitute a strategic area for continued development. Thermal spray (TS) coatings offer distinct advantages by combining versatility, cost-effectiveness, and the ability to coat complex geometries without constraints of other in-chamber processes. Consequently, TS techniques like high-velocity oxy-fuel (HVOF) and atmospheric plasma spray (APS) are industrially well-accepted. However, they have reached limits of their capabilities while expectations from coatings progressively increase in pursuit of enhanced efficiency and productivity. Two emerging TS variants, namely high-velocity air-fuel (HVAF) and liquid feedstock thermal spraying, offer attractive pathways to realize high-performance surfaces superior to those hitherto achievable. Supersonic HVAF spraying provides highly adherent coatings with negligible porosity and its low processing temperature also ensures insignificant thermal ‘damage’ (oxidation, decarburization, etc.) to the starting material. On the other hand, liquid feedstock derived TS coatings, deposited using suspensions of fine particles (100 nm–5 µm) or solution precursors, permits the production of coatings with novel microstructures and diverse application-specific architectures. The possibility of hybrid processing, combining liquid and powder feedstock, provides further opportunities to fine tune the properties of functional surfaces. These new approaches are discussed along with some illustrative examples. Full article
(This article belongs to the Special Issue Processing and Fabrication of Advanced Materials)
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