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Applied Sciences
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Metal Matrix Composites II
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Metal Matrix Composites II

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Mechanical Engineering".

Deadline for manuscript submissions: closed (30 April 2021) | Viewed by 4610

Special Issue Editor

Prof. Dr. Manoj Gupta

E-Mail Website
Guest Editor
Materials Group, Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
Interests: metal additive manufacturing; processing; characterization; lightweight materials; nanocomposites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal-based composites provide a unique dimension in tailoring the properties of metals through the selection of type, size, and amount of reinforcement. The properties of metallic matrices, therefore, can be tailored depending on the end applications. In view of the dynamic capabilities that can be exhibited, this Special Issue will cover all aspects of “Metal Matrix Composites”, including synthesis (solid, liquid, 2-phase, and 3D printing), secondary processing, properties (tensile, compressive, fatigue, impact, creep, tribological, etc.), corrosion behavior, and joining techniques. The main objective, thus, will be to bring the latest results in the area of metal matrix composites to the research community worldwide.

Assoc. Prof. Manoj Gupta
Guest Editor

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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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

  • Properties
  • Microstructure
  • Corrosion
  • Synthesis
  • Tribology
  • 3-D printing

Published Papers (2 papers)

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Research

15 pages, 3957 KiB  
Article
Drill Hole Orientation: Its Role and Importance on the Compression Response of Pure Magnesium
by Anirudh Venkatraman Krishnan, Penchal Reddy Matli, Gururaj Parande, Vyasaraj Manakari, Beng Wah Chua, Stephen Chee Khuen Wong, Senthil Kumar Anantharajan, C. Y. H. Lim and Manoj Gupta
Appl. Sci. 2020, 10(20), 7047; https://doi.org/10.3390/app10207047 - 11 Oct 2020
Cited by 3 | Viewed by 2202
Abstract
Drilling is used in creating cylindrical through-holes for various applications. While optimizing drilling parameters is widespread, the effect of a drilled through-hole on the structural stability of components is not fully documented. The base material, along with other parameters, such as drill diameter, [...] Read more.
Drilling is used in creating cylindrical through-holes for various applications. While optimizing drilling parameters is widespread, the effect of a drilled through-hole on the structural stability of components is not fully documented. The base material, along with other parameters, such as drill diameter, drill location and its orientation affect structural stability. Since carrying out tests on different base materials can be time consuming, simulation software can instead be used to provide valuable information. However, the comparison between experiments and simulations gets difficult; hence, this study attempts to provide a basis for effective comparison by studying simulations and compression tests, comparing the two, and documenting the role of drill hole orientation on the compressive response of magnesium, a material with immense potential in light-weight components. Simulations and experiments were carried out on three through-hole orientations and were compared to the undrilled scenario. Results demonstrate significant differences in compression behaviour. While the compressive yield strength increased in all three drill orientations, ultimate strength and ductility was reduced in horizontal and angular drill hole orientations. These observations, therefore, provide valuable insight into choosing the right orientation for different applications. Full article
(This article belongs to the Special Issue Metal Matrix Composites II)
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11 pages, 3721 KiB  
Article
A New Method to Lightweight Magnesium Using Syntactic Composite Core
by Penchal Reddy Matli, Joshua Goh Yong Sheng, Gururaj Parande, Vyasaraj Manakari, Beng Wah Chua, Stephen Chee Khuen Wong and Manoj Gupta
Appl. Sci. 2020, 10(14), 4773; https://doi.org/10.3390/app10144773 - 11 Jul 2020
Cited by 8 | Viewed by 1818
Abstract
Light weighting of magnesium-based materials is crucial for its extensive use in transportation applications. Hybrid processing of these materials in a shell-core pattern can substantially improve the specific properties of magnesium. In the present study, the Mg/Mg-20GMB (glass microballoon) hybrid composite was prepared [...] Read more.
Light weighting of magnesium-based materials is crucial for its extensive use in transportation applications. Hybrid processing of these materials in a shell-core pattern can substantially improve the specific properties of magnesium. In the present study, the Mg/Mg-20GMB (glass microballoon) hybrid composite was prepared using a disintegrated melt deposition technique. Microstructural characterization and mechanical properties of the developed as-cast Mg/Mg-20GMB hybrid composite were investigated. Results revealed that a unified metallurgical interface was formed between the Mg-20GMB core material and the pure Mg shell. Energy dispersive X-ray spectroscopy (EDX) results confirmed the existence of Mg2Si as the secondary phase in the Mg-20GMB core material. The hybrid Mg/Mg-20GMB composite exhibited much superior compressive yield strength (↑71.6%), lower ultimate compressive strength (↓23.25%), and enhanced ductility (↑186.48%) when compared to as-cast pure magnesium. Full article
(This article belongs to the Special Issue Metal Matrix Composites II)
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