The Paton Welding Journal, 2011, №07



2011 №07 (04)

2011 №07 (06)

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The Paton Welding Journal, 2011, #7, 20-25 pages  

PECULIARITIES OF FORMATION OF STRUCTURE IN THE TRANSITION ZONE OF THE Cu-Ta JOINT MADE BY EXPLOSION WELDING

B.A. GRINBERG¹, O.A. ELKINA¹, O.V. ANTONOVA¹, A.V. INOZEMTSEV¹, M.A. IVANOV², V.V. RYBIN³ and V.E. KOZHEVNIKOV⁴

¹Institute of Metal Physics, RAS Ural Division, Ekaterinburg, Russia
²G.V. Kurdyumov Institute for Metal Physics, NASU, Kiev, Ukraine
³A.M. Prokhorov Academy of Engineering Sciences, St-Petersburg, Russia
⁴OJSC «Ural Chemical Engineering Factory», Ekaterinburg, Russia
 
 
Abstract
Structure of the transition zone in a joint of metals having no mutual solubility was studied. It was determined that surface of the explosion welded Cu-Ta joint is not smooth, but contains protrusions with a size of about 5-10 mm. The transition zone of the joint consists of chaotically distributed non-melted regions of copper and tantalum, as well as zones of local melting of copper containing tantalum nanoparticles 30-50 nm in size. Two processes, i.e. formation of protrusions at the interface and local melting zones, determine stirring of the materials having no mutual solubility.
 
 
Keywords: explosion welding, limited solubility, formation of joint, transition zone, local melting, nanoparticles
 
 
Received:                ??.??.??
Published:               28.07.11
 
 
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