| 2001 №09 (04) | 2001 №09 (06) |
The Paton Welding Journal, 2001, #9, 22-24 pages
Character of diffusion of carbon within the contact zone in thermal-press electro-hydropulse welding
L.Yu. Demidenko, N.A. Onatskaya
Institute of Pulse Research and Engineering, NASU, Mykolaiv, UkraineAbstract
It is shown that thermal-press electro-hydropulse welding of tubes to tube sheets results in formation of two bands in the contact zone - the carburized one on the tube side and the decarburized one on the tube sheet side. It has been found that formation of these bands is caused by directed diffusion of carbon, induced by residual tangential stresses with different signs, which are formed in elements being welded.
Keywords: thermal-press electro-hydropulse welding, pressure welding, tube, tube sheet, electro-hydropulse pressingin, contact zone, diffusion, residual tangential stresses, carburized and decarburized bands
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