2015 №08 (01) DOI of Article
2015 №08 (03)

The Paton Welding Journal 2015 #08
TPWJ, 2015, #8, 8-13 pages
Influence of thermodynamic and structural parameters of multilayer foils on SHS process characteristics
Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 8, 2015 (August)
Pages                      8-13
M.V. Kravchuk And A.I. Ustinov
E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
Characteristics of the process of self-propagating high-temperature synthesis (SHS) to foil with multilayer structure based on elements, capable of formation of intermetallic compounds, are determined by many thermodynamic and structural parameters. This significantly complicates the possibility of prediction of the features of SHS reaction running in them at the change of the foil structure and chemical composition. In the study, analysis of effectiveness of these parameters influence on SHS reaction front temperature and velocity in multilayer foil was performed within the framework of a phenomenological model. It is shown that the velocity of SHS front propagation and heat generation intensity nonmonotonically depend on structural parameters. In the case of Ni/Al multilayer foil, structural parameters were established, for which maximum values of heat generation intensity are reached in the foil in SHS process, and the method for their determination was proposed. 8 Ref., 1 Table, 11 Figures.
Keywords: phase transformations, self-propagating high-temperature synthesis, reaction diffusion, multilayer foils, heat conductivity, structural parameters, heat generation intensity
Received:                28.04.15
Published:               13.10.15
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