The Paton Welding Journal, 2009, №11



2009 №11 (07)

2009 №11 (09)

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TPWJ, 2009, #11, 39-41 pages  
DETERMINATION OF THE PARAMETERS OF SHOCK-COMPRESSED GAS IN THE WELDING GAP AHEAD OF THE CONTACT POINT IN EXPLOSION CLADDING


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 11, 2009 (November)
Pages                      39-41
 
 
Authors
S.Yu. BONDARENKO¹, D.V. RIKHTER², O.L. PERVUKHINA² and L.B. Pervukhin^2
1Altai State Agricultral University, Barnaul, RF
²Institute of Structural Macrokinetics and Materials Science, RAS, Chernogolovka, RF
 
 
Abstract
Dynamics of formation of shock-compressed gas region is considered, and dependence of the maximum length of the compressed-gas region on the contact point velocity and plate length has been derived. A hypothesis is offered that thermal ionization of gas to form thin layers of low-temperature plasma takes place at the interface in the welding gap ahead of the contact point in the supersonic flow (5-6 Mach) of the shock-compressed gas over the surfaces being welded.
 
 
Keywords: explosion cladding, gap between the plates, shock-compressed gas, gas parameters, thermal ionization of gas
 
 
Received:                ??
Published:               28.11.09
 
 
References
1.             Richter, U. (1973) Application of explosive-welded bimetals to constructing apparatuses for chemical industry. In: Proc. of 2nd Int. Conf. on Explosives (Marianske Lazne, CSSR, 1973), 253-261.
2.             Kudinov, V.M., Koroteev, A.Ya. (1978) Explosion welding in metallurgy. Moscow: Metallurgiya.
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4.             Berdychenko, A.A., Zlobin, B.S., Pervukhin, L.B. et al. (2003) About possible inflammation of particles propelled into the gap in explosion welding of titanium. Ibid., 39(2), 128-136.
5.             Ishutkin, S.N., Kirko, V.I., Simonov, V.A. (1980) Investigation of heat effect of shock-compressed gas on colliding plate surface. Ibid., 16(6), 69-73.
6.             Ashaev, V.K., Doronin, G.S., Ermolovich, E.I. et al. (2006) Application of explosion welding and heat treatment methods for manufacturing of multilayer armored compositions having higher bullet-proof and survivability. In: Transact, on Armament, Automation, Control. Kovrov.
7.             Alekseev, Yu.L., Smirnova, G.M. (1994) Joint formation in explosion welding. Fizika i Khimiya Obrab. Metallov, 4/5, 126-130.
8.             Alekseev, Yu.L., Smirnova, G.M. (1994) About conditions of explosion welded joint formation. Ibid., 2, 112-116.
9.             Pervukhina, O.L., Berdychenko, A.A., Pervukhin, L.B. et al. (2006) Influence of atmosphere composition on formation of titanium-to-steel joint in explosion welding. In: Transact, on Higher Education Institutions on Explosion Welding and Properties of Welded Joints. Volgograd: VolgGTU, 59-64.
10.           Zeldovich, Ya.B., Rajzer, Yu.P. (1966) Physics of shock waves and high-temperature hydrodynamic phenomena. Moscow: Nauka.
11.           Frank-Kamenetsky, D.A. (1975) Plasma is the fourth state of matter. Moscow: Atomizdat.

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