Visualization of dislocations through electron channeling contrast imaging at fatigue crack tip, interacting with pre-existing dislocations

Autor:	Kishan Habib, Motomichi Koyama, Toshihiro Tsuchiyama, Hiroshi Noguchi
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	Non-propagating fatigue crack electron channeling contrast imaging crack tip dislocation high nitrogen steel planar dislocation array Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 6, Iss 1, Pp 61-66 (2018)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2017.1392370
Popis:	The dislocation pattern at the tip of a non-propagating fatigue crack in an Fe-25Cr-1N steel (mass%) was characterized by electron channeling contrast imaging. Planar dislocation arrays on two different slip planes were observed at the crack tip. Each planar dislocation array acts as a barrier to the motion of the other planar dislocations on different slip planes, contributing to the enhancement of the resistance to the crack propagation.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/814e9bae54d7408ab1e3ef55116d24c3 Zobrazit plný text záznamu View record in DOAJ