Disconnection Motion in Low- and High-Angle Symmetrical Tilt Grain Boundaries in HCP Metal

Autor:	R.C. Pond, Hassan A. Khater, Anna Serra, J.P. Hirth
Rok vydání:	2013
Předmět:	Metal Crystallography Materials science Condensed matter physics Shear (geology) Mechanics of Materials Mechanical Engineering visual_art visual_art.visual_art_medium General Materials Science Grain boundary High angle Condensed Matter Physics
Zdroj:	Materials Science Forum. 753:125-130
ISSN:	1662-9752
DOI:	10.4028/www.scientific.net/msf.753.125
Popis:	The structure of disconnections in symmetrical low- and high-angle [0001] tilt boundaries in an hcp metal are studied using atomic-scale simulation. Applied engineering strains cause such defects to move conservatively along the boundaries, producing coupled shear and migration. The Peierls stresses causing such motion are found to decrease precipitously through the transition from low- to high-angle boundaries. The reason underlying this behaviour is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d8440f98c6b6a31d03d1490ae7e8dc3 https://doi.org/10.4028/www.scientific.net/msf.753.125 Zobrazit plný text záznamu