Hardening mechanism and plastic deformation behavior in super-hard AlCrNbSiTiN high-entropy nitride nanocomposite coatings

Autor:	Xiangyu Zhang, Zhong Zeng, Xiaomei Zeng, Vasiliy Pelenovich, Qiang Wan, Alexander Pogrebnjak, Longjian Xue, Yanming Chen, Bing Yang
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	High-entropy nitride coatings nanocomposite structure mechanical properties hardening mechanism plastic deformation behavior Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Pp 1-10 (2024)
Druh dokumentu:	article
ISSN:	21663831 2166-3831
DOI:	10.1080/21663831.2024.2425167
Popis:	The rapid development of industrial applications places severe demands on the mechanical properties of protective coatings. Unraveling the hardening mechanism and deformation behavior is essential for the design of advanced hard coatings. In this paper, a novel AlCrNbSiTiN high-entropy nitride (HEN) coating with an extremely low wear rate of 6.3 × 10−7 mm3 N−1 m−1 and super-hardness of 46 GPa was deposited. The variation of ion-bombardment energy induces the transformation of the nanocomposite structure and hardening mechanism. The plastic deformation behavior was revealed using Ex situ TEM observation and the MeN-Si3N4 nanocomposite structure is a critical contributor to the outstanding mechanical properties and resistance to deformation.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/48b4d330a09e4f8b9a59c708181e0f82 Zobrazit plný text záznamu View record in DOAJ