Influence of Strain-Hardened Zones and Intermetallic Layers of Explosion Welded and Heat Treated Al/Cu Laminated Metal Composites on the Evolution of Thermal Conductivity Coefficient

  • Yuriy TRYKOV Volgograd State Technical University
  • Leonid GUREVICH Volgograd State Technical University
  • Dmitry PRONICHEV Volgograd State Technical University
  • Mikhail TRUNOV Volgograd State Technical University
Keywords: explosion welding, thermal conductivity, bimetal, intermetallic layer

Abstract

In this study laminated Al/Cu composite was obtained by explosion welding. The effect of strain-hardened zones and the intermetallic layer on thermal conductivity coefficient was investigated. For this purpose the specimens after explosion welding and after subsequent annealing to obtain the intermetallic layer were studied by X-ray methods and means of optical microscopy to determine the phase composition and the width of intermetallic layer. The microhardness tests were carried out to identify the width of the strain-hardened zones and the intermetallic layer. The thermal conductivity coefficient of the composite was experimentally measured to calculate the thermal properties of the strain-hardened zones and intermetallic layer. The width of the strain-hardened zone and the intermetallic layer was 80 μm and 160 μm respectively. The heat conductivity coefficients of the strain-hardened zones and intermetallic layer were 108 W/(m×K) and less than 35 W/(m×K) respectively.

DOI: http://dx.doi.org/10.5755/j01.ms.20.3.4602

Author Biographies

Yuriy TRYKOV, Volgograd State Technical University
Material Science chair, Doctor of Science
Leonid GUREVICH, Volgograd State Technical University
Material Science chair, Phd
Dmitry PRONICHEV, Volgograd State Technical University
Material Science chair, Phd
Mikhail TRUNOV, Volgograd State Technical University
Material Science chair, Post-graduate
Published
2014-09-16
Section
METALS, ALLOYS, COATINGS