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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6216

Title: Relating microtexture and dynamic micro hardness in an extruded AA8090 alloy and AA8090-8 vol% SiCp composite
Authors: BAURI, R
PANCHOLI, V
SAMAJDAR, I
SURAPPA, MK
Keywords: stored energy
elastic-modulus
cold work
texture
indentation
orientation
strain
steel
recrystallization
microstructure
Issue Date: 2005
Publisher: ELSEVIER SCI LTD
Citation: SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 6(8), 933-938
Abstract: The present study involves combined measurements of microtexture and dynamic ultra micro hardness (DUH) in hot extruded AA8090 aluminum alloy and its composite reinforced with 8 vol% SiCp. Both the materials show strong crystallographic fiber textures-(111) and (001). The dynamic micro hardness shows a clear pattern of difference between these two fiber textures, (111) oriented grains being harder and stiffer. The difference in theta ld between the fibers, where theta and d are the average cell misorientation and cell size, respectively, was marginal in the alloy and thus cannot explain the observed hardness difference. The hardness difference can be explained from the difference in Taylor factors between the respective fibers. Elastic stiffness values estimated from microtexture and DUH follow a similar trend qualitatively. (C) 2005
URI: http://dx.doi.org/10.1016/j.stam.2005.08.007
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6216
http://hdl.handle.net/10054/6216
ISSN: 1468-6996
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