Role of interfacial transition zones in the fracture of Cu/V nanolamellar multilayers

Autor:	Siyuan Wei, Shijian Zheng, Lifeng Zhang, Yue Liu, Jian Wang, Xianping Wang, Jiangwei Wang
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	multilayers interface interfacial transition zone fracture in situ transmission electron microscopy Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 8, Iss 8, Pp 299-306 (2020)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2020.1755379
Popis:	Plastic deformation and fracture behavior of Cu/V nanoscale metallic multilayers (NMMs) were systematically investigated through in situ transmission electron microscopy testing. Two different types of interfaces: sharp interfaces and interfacial transition zones (ITZs), formed in the as-fabricated Cu/V NMMs. Upon deformation, sharp interfaces and ITZs exert distinct influences on the fracture behavior of Cu/V NMMs. Sharp interfaces can impede the crack propagation by deflecting the crack propagation and blunting the crack tip, while the ITZs can induce microcracks and facilitate the fracture process. These findings shed light on the important roles of interface structures in the deformation of a broad class of NMMs.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/2c3d669dfdb34ae3be1eea82fdf67603 Zobrazit plný text záznamu View record in DOAJ