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Dear Colleagues,

From the perspectives of engineers, physicists, medical doctors, researchers, and scientists, we intend to analyze and discuss different topics of corrosion resistance. The high potential of the enhancement of a material’s surface (using metallic, polymer, or ceramic layers, or via active functionalization through laser or ion beam, mechanical, or chemical transformation) makes them suitable for many applications. Actual activity in the domain presents a few problems connected to the obtaining and processing of metallic alloys, the modification of the surface state, and the characterization, modeling, and simulation of prototyping technologies.

This Special Issue of Materials intends to focus on the most recent advances in obtaining materials with an active surface used in the industrial, automotive, chemical, or medical fields with enhanced performances.

Prof. Dr. Nicanor Cimpoesu
Prof. Dr. Costica Bejinariu
Guest Editors

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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. Materials 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 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.

Related Special Issue

Published Papers (1 paper)

Research

15 pages, 9268 KiB

Open AccessArticle

Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material

by Romeo Gabriel Chelariu, Ramona Cimpoesu, Adrian Marius Jurca, Catalin Mihai Popa, Marcelin Benchea, Gheorghe Badarau, Bogdan Istrate, Alin Marian Cazac, Nicanor Cimpoesu, Dan-Dumitru Pintilie, Gabriel Dragos Vasilescu and Costica Bejinariu

Materials 2024, 17(10), 2220; https://doi.org/10.3390/ma17102220 - 8 May 2024

Viewed by 198

Abstract

We developed and analyzed a novel non-sparking material based on CuAlBe for applications in potentially explosive environments. Using a master alloy of CuBe, an established material for anti-sparking tools used in oil fields, mines, or areas with potentially explosive gas accumulations, and pure Al, we used an Ar atmosphere induction furnace to obtain an alloy with ~10 wt% Al and ~2 wt% Be percentages and good chemical and structural homogeneity. The new material was tested in an explosive gaseous mixture (10% H₂ or 6.5% CH₄) under extremely strong wear for 16,000 cycles, and no hot sparks capable of igniting the environment were produced. The material was used in the form of hot-rolled plates obtained from melted ingots. The experimental results reflect the use of a suitable material for non-sparking tools. This material has good deformability during hot rolling, abnormal grain growth during deformation under heat treatment and special thermo-mechanical processing, and no high chemical composition variation. Additionally, there are slightly different corrosion resistance and mechanical properties between the melt and hot-rolled state of CuAlBe material. Through hot rolling, the material’s corrosion resistance increased, reducing the chances of generating sparks capable of causing explosions. Full article

(This article belongs to the Special Issue Corrosion Resistance Enhancement of the Materials Surface—Volume II)

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