Grain structure of laser remelted 7075 aluminium alloy in presence of Al2O3 particles

Authors
Citation
K. Zhang et Gn. Chen, Grain structure of laser remelted 7075 aluminium alloy in presence of Al2O3 particles, MATER SCI T, 17(6), 2001, pp. 668-670
Citations number
16
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS SCIENCE AND TECHNOLOGY
ISSN journal
02670836 → ACNP
Volume
17
Issue
6
Year of publication
2001
Pages
668 - 670
Database
ISI
SICI code
0267-0836(200106)17:6<668:GSOLR7>2.0.ZU;2-#
Abstract
The effect of inert particles on grain structure development from alloy mel t during laser rapid solidification has been investigated. It is found that the presence of Al2O3 particles may disrupt the usual epitaxial grain stru cture evolution of an aluminium 7075 alloy when processed by laser surface remelting, This result, in addition to observations of crystal termination at the particles and grain refinement in particle dense regions, indicates that a mechanism of particle restricted grain growth operates. MST/4747.