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Microstructural changes in a mechanically alloyed Al-6.2Zn-2.5Mg-1.7Cu alloy (7010) with and without particulate SiC reinforcement

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Title Microstructural changes in a mechanically alloyed Al-6.2Zn-2.5Mg-1.7Cu alloy (7010) with and without particulate SiC reinforcement
 
Creator BHADURI, A
GOPINATHAN, V
RAMAKRISHNAN, P
MIODOWNIK, AP
 
Description Elemental powders of Al, Zn, Mg, and Cu (corresponding to the composition of 7010 aluminium alloy) were milled in a high-energy attritor with and without additions of SiC particulates. The microstructural changes taking place in the milled powders (which eventually lead to mechanical alloying) are found to be retarded by SiC additions. High-resolution techniques such as electron probe microanalysis (EPMA) and transmission electron microscopy/energy-dispersive X-ray analysis (TEM/EDX) revealed the presence of localized. solute-rich regions long after the diffraction line from these solutes had ceased to appear in the X-ray diffractograms, Zinc appears to be more difficult to be mechanically alloyed into aluminum than either Cu or Mg in spite of its comparatively larger diffusivity in aluminum.
 
Publisher MINERALS METALS MATERIALS SOC
 
Date 2011-08-18T19:30:39Z
2011-12-26T12:55:53Z
2011-12-27T05:43:09Z
2011-08-18T19:30:39Z
2011-12-26T12:55:53Z
2011-12-27T05:43:09Z
1996
 
Type Article
 
Identifier METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 27(11), 3718-3726
1073-5623
http://dx.doi.org/10.1007/BF02595463
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10113
http://hdl.handle.net/10054/10113
 
Language en