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Ductilizing of a brittle as-cast hypereutectic Al-Si alloy by friction stir processing

DSpace at IIT Bombay

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Title Ductilizing of a brittle as-cast hypereutectic Al-Si alloy by friction stir processing
 
Creator RAO, AG
DESHMUKH, VP
PRABHU, N
KASHYAP, BP
 
Subject ALUMINUM-SILICON ALLOYS
MECHANICAL-PROPERTIES
MICROSTRUCTURE
TOUGHNESS
EVOLUTION
Cast: Metal and alloy: Microstructure: Particles
Nano size: Structural: Electron microscopy
 
Description Multipass friction stir processing of brittle as-cast hypereutectic Al-Si alloy resulted in bimodal distribution of ultrafine silicon particles in nano-size aluminum matrix. As compared to the as-cast material, the stress-strain curves revealed simultaneous increase in strength by four times and in ductility by 14 times after three overlap multipass FSP. The transformation from brittle cleavage fracture to completely ductile fracture is confirmed by the fractographs of tensile samples taken before and after the friction stir processing. (C) 2015 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T04:36:47Z
2016-01-15T04:36:47Z
2015
 
Type Article
 
Identifier MATERIALS LETTERS, 159,417-419
0167-577X
1873-4979
http://dx.doi.org/10.1016/j.matlet.2015.07.006
http://dspace.library.iitb.ac.in/jspui/handle/100/17774
 
Language en