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AlCrCuFeNi高熵合金薄膜的非水电沉积与表征

Non-Aqueous Electrodeposition and Characterization of AlCrCuFeNi High Entropy Alloy Thin Films.

作者信息

Serban Beatrice-Adriana, Olaru Mihai-Tudor, Badea Ioana-Cristina, Mitrica Dumitru, Burada Marian, Anasiei Ioana, Ghita Mihai, Tudor Albert-Ioan, Matei Cristian-Alexandru, Popescu Ana Maria Julieta, Constantin Virgil, Branzoi Florina, Dobrescu Cristian, Constantin Nicolae

机构信息

National R&D Institute for Non-Ferrous and Rare Metals, 102 Biruinței Blvd., 077145 Pantelimon, Romania.

'Ilie Murgulescu' Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania.

出版信息

Materials (Basel). 2022 Aug 31;15(17):6007. doi: 10.3390/ma15176007.

DOI:10.3390/ma15176007
PMID:36079388
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9457219/
Abstract

Materials used in the marine industry are exposed to extreme conditions, so it is necessary to meet remarkable characteristics, such as mechanical resistance, low density, and good corrosion resistance. The challenging environment requires continuous performance improvements, so this work is focused on developing new materials with superior properties, using the electrochemical deposition technique, which are convenient for marine engineering. High-entropy alloys have been attracting tremendous interest in many applications, due to their simple crystal structures and advantageous physical-chemical properties, such as high strength, anti-corrosion, erosion, and electro-magnetic capabilities. To identify the most appropriate compositions, MatCalc software was used to predict the structure and characteristics of the required materials, and thermodynamic and kinetic criteria calculations were performed. The modelling processes generated a series of optimal compositions in the AlCrCuFeNi alloy system, that are suitable to be used in anticorrosive and tribological applications. The composition and morphology of the obtained high entropy alloy thin films revealed a uniform structure, with a small grain profile. The corrosion resistance was investigated in artificial seawater to observe the behavior of the newly developed materials in demanding conditions, and the results showed improved results compared to the copper foil substrate.

摘要

海洋工业中使用的材料面临极端条件，因此必须具备卓越的特性，如机械抗性、低密度和良好的耐腐蚀性。具有挑战性的环境要求不断改进性能，因此这项工作专注于利用电化学沉积技术开发具有卓越性能的新材料，这些材料适用于海洋工程。由于其简单的晶体结构和有利的物理化学性质，如高强度、抗腐蚀、抗侵蚀和电磁能力，高熵合金在许多应用中引起了极大的兴趣。为了确定最合适的成分，使用MatCalc软件预测所需材料的结构和特性，并进行了热力学和动力学标准计算。建模过程在AlCrCuFeNi合金系统中生成了一系列适合用于防腐和摩擦学应用的最佳成分。所获得的高熵合金薄膜的成分和形态显示出均匀的结构，晶粒尺寸较小。在人工海水中研究了耐腐蚀性，以观察新开发材料在苛刻条件下的行为，结果表明与铜箔基材相比有了改进。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1759/9457219/4f2a97e71bc3/materials-15-06007-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1759/9457219/60fdfdaee06a/materials-15-06007-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1759/9457219/60fdfdaee06a/materials-15-06007-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1759/9457219/cfadb9db1b11/materials-15-06007-g008.jpg
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