Yushan Geng , Jianbao Zhang , Hang Wang , Jiao Chen , Hao Gong , Dongsheng Yang , Jun Cheng , Yong Yang , Jun Yang , Weimin Liu
{"title":"Ultra-wear-resistant high-entropy nanocomposite through gradient nanograined glaze-layer at 1000 °C","authors":"Yushan Geng , Jianbao Zhang , Hang Wang , Jiao Chen , Hao Gong , Dongsheng Yang , Jun Cheng , Yong Yang , Jun Yang , Weimin Liu","doi":"10.1016/j.compositesb.2025.112419","DOIUrl":null,"url":null,"abstract":"<div><div>The development of ultra-wear-resistant metallic materials capable of withstanding extreme temperatures remains a critical challenge in advancing tribological systems for aerospace, energy, and manufacturing industries. Here, we introduce a Co<sub>25</sub>Ni<sub>23</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ti<sub>6</sub>Al<sub>4</sub>B<sub>2</sub> crystal-glass high-entropy nanocomposite, engineered with a high density of hierarchical nanoprecipitates. At 1000 °C, this material demonstrates an unprecedented negative wear rate of −2.3 × 10<sup>−6</sup> mm<sup>3</sup>/Nm, surpassing state-of-the-art superalloys and intermetallic composites, while maintaining a low coefficient of friction of 0.26, comparable to advanced ceramic lubricants. This exceptional performance stems from a gradient nanograined glaze layer that dissipates frictional strain and suppresses brittle cracking and spalling of metallic oxides in the tribo-layer. Our findings expand the design space for high-entropy alloys and establish a scalable framework for developing next-generation ultra-durable materials for extreme environments.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"299 ","pages":"Article 112419"},"PeriodicalIF":12.7000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part B: Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359836825003208","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The development of ultra-wear-resistant metallic materials capable of withstanding extreme temperatures remains a critical challenge in advancing tribological systems for aerospace, energy, and manufacturing industries. Here, we introduce a Co25Ni23Cr20Fe20Ti6Al4B2 crystal-glass high-entropy nanocomposite, engineered with a high density of hierarchical nanoprecipitates. At 1000 °C, this material demonstrates an unprecedented negative wear rate of −2.3 × 10−6 mm3/Nm, surpassing state-of-the-art superalloys and intermetallic composites, while maintaining a low coefficient of friction of 0.26, comparable to advanced ceramic lubricants. This exceptional performance stems from a gradient nanograined glaze layer that dissipates frictional strain and suppresses brittle cracking and spalling of metallic oxides in the tribo-layer. Our findings expand the design space for high-entropy alloys and establish a scalable framework for developing next-generation ultra-durable materials for extreme environments.
期刊介绍:
Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development.
The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.