Mitrica Dumitru, Badea Ioana Cristina, Serban Beatrice Adriana, Olaru Mihai Tudor, Vonica Denisa, Burada Marian, Piticescu Radu-Robert, Popov Vladimir V
National R&D Institute for Nonferrous and Rare Metals-IMNR, 077145 Ilfov, Romania.
Israel Institute of Metals, Technion R&D Foundation, Haifa 3200003, Israel.
Materials (Basel). 2021 Mar 4;14(5):1197. doi: 10.3390/ma14051197.
The paper is proposing a mini-review on the capability of the new complex concentrated alloys (CCAs) to substitute or reduce the use of critical raw materials in applications for extreme conditions. Aspects regarding the regulations and expectations formulated by the European Union in the most recent reports on the critical raw materials were presented concisely. A general evaluation was performed on the CCAs concept and the research directions. The advantages of using critical metals for particular applications were presented to acknowledge the difficulty in the substitution of such elements with other materials. In order to establish the level of involvement of CCAs in the reduction of critical metal in extreme environment applications, a presentation was made of the previous achievements in the field and the potential for the reduction of critical metal content through the use of multi-component compositions.
本文提出了一篇关于新型复杂浓缩合金（CCA）在极端条件应用中替代或减少关键原材料使用能力的小型综述。简要介绍了欧盟在最新关键原材料报告中制定的相关法规和期望。对CCA概念和研究方向进行了综合评估。介绍了在特定应用中使用关键金属的优势，以认识到用其他材料替代这些元素的困难。为了确定CCA在极端环境应用中减少关键金属方面的参与程度，介绍了该领域以前的成果以及通过使用多组分组合物降低关键金属含量的潜力。
