Journal of Casting & Materials Engineering
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ISSN 2543-9901
Issue Date
2019
Volume
Vol. 3
Number
No. 1
Description
Journal Volume
Journal of Casting & Materials Engineering
Vol. 3 (2019)
Projects
Pages
Articles
Study of AlSi7Mg0.6 alloy by selective laser melting - mechanical properties, microstructure, heat treatment
(AGH University of Science and Technology Press, 2019) Mauduit, Arnold; Gransac, Hervé; Auguste, Pierre; Pillot, Sébastien
This study presents a panorama of the AlSi7Mg0.6 (A357) aluminum alloy in additive manufacturing by selective laser melting. The document is mainly interested in the metallurgical tempers obtained after manufacture and after heat treatment, it quickly cover the process. The results concerning the material integrity (porosity), mechanical properties, microstructures, residual stresses, etc., are presented in order to best define the technological capacities of these metallurgical tempers: as-built, soft annealed, T6, and artificial aging. Some information on the mechanisms and kinetics of precipitation is also presented using the Johnson-Mehl-Avrami-Kolmogorov model. Finally, the conclusion proposes an inventory (advantages/disadvantages) of the metallurgical tempers obtained to better understand the industrial applications.
Analysis and evaluation of effect of manganese content on properties of EN AC 46000 aluminum alloy
(AGH University of Science and Technology Press, 2019) Pasternak, Martyna; Brzeziński, Marcin; Piwowarczyk, Gabriela
This article is the effect of industrial work and many surveys in the one of the Polish foundries that specialize in aluminum alloys. The main goal of our explorations is to evaluate the influence of manganese on Al-Si alloy properties. In die-cast alloys, it is recommended to use larger amounts of iron to reduce the impact on the pressure chamber and mold. Manganese neutralizes the harmful effect of iron by changing the morphology of the separated brittle ferrous phases. The unfavorable form of the iron-containing phases in the form of long needles changes into the forms of fine compact crystals, which are less harmful to the mechanical properties. Nowadays, the main client requirement is to obtain the right parameters at the best price. Specifically, the customer is in the automotive industry, where new technologies provide a connection between the high quality and low weight of car parts [1-3].
Mechanical and thermal properties of graphene over composite materials: a technical review
(AGH University of Science and Technology Press, 2019) Islam, Md Mashrur; Ahmed, Sadman Saffaf; Rashid, Moshiur; Akanda, Md Masum
The recent years have seen numerous developments in the research and headway of graphene, the thinnest two-dimensional nuclear material. Graphene-based materials and their composites have promising applications in an extensive variety of fields, for example, gadgets, biomedical guides, films, adaptable wearable sensors, and actuators. The most recent investigations and movement in this branch of knowledge regularly deliver conflicting or uncertain outcomes. This article evaluates and outlines the distributed information in order to give a basic and complete diagram of the cutting edge. Initially, the particular basic nature of accessible graphene materials is illustrated as well as the distinctive generation methods accessible thus far. The appraisal at that point talks about the different composites that center diverse sub-practical routines, for example, mechanical and aggregate utilitarian applications (e.g., vitality, hardware biomedical, layers, and sensors). The use of graphene and its subsidiaries in the fabricate of nanocomposites with various polymer frameworks has been inspected. And finally, an ending and point of view are given to talking about the rest of the difficulties for graphene nanocomposites in useful science and building.