Impact of temperature on shear strength of single lap Al–Cu bimetallic joint

Uścinowicz, Robert

doi:10.1016/j.compositesb.2012.04.073

Cited by 49 publications

(22 citation statements)

References 28 publications

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“…These materials consisting of aluminum and copper layers are intermediate products and copper layers as a bimetal, instead of the whole volume of copper, reduces total material costs on account of lower price of aluminum [4].…”

Section: Introductionmentioning

confidence: 99%

Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding

2015

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Section: Introductionmentioning

confidence: 99%

Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding

2015

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“…The impact and properties of intermetallic compound interlayers have been widely explored in previous studies. The decrease in strength properties as a result of intermetallic formation was reported by Braunovic and Alexandrov (1994); Lee et al (2005); Liu et al (2011);Sheng et al (2011); Kim and Hong (2013); Uscinowicz (2013). Lee et al (2005) have reported the decline of electrical conductivity caused by the emergence of intermetallics in Al/Cu bimetals however in the study of Acarer (2012) no significant decrease in electrical conductivity was observed after the formation of small quantities of CuAl 2 phase between metals.…”

Section: Introductionmentioning

confidence: 40%

Investigación sobre fusión de contacto en materiales compuestos laminados Cu/Al

et al. 2016

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ABSTRACT:The study presents investigation of chemical composition, microhardness and electrical conductivity of Cu/Al laminated metal composite after heat treatment at temperatures higher than Cu-Al eutectic melting point. The Cu/Al bimetal was obtained via explosion welding. Chemical composition of the material after heat treatments was identified using EDS analysis. Eddy current testing was applied to investigate electrical conductivity of the composite's components. Strain-hardened zones were identified in the explosion welded composite. The experimental value of electrical conductivity of explosion welded composite was in good coherence with calculated by additivity rule results. Heat treatments resulted in the formation of multiple interlayers which had high microhardness value and had intermetallics in composition. The electrical conductivity of the identified interlayers was significantly lower than of Cu and Al. RESUMEN:Investigación sobre fusión de contacto en materiales compuestos laminados Cu/Al. Se presentan los resultados de composición química, microdureza y conductividad eléctrica obtenidos en materiales compuestos laminados Cu/Al, tratados térmicamente a temperaturas superiores a las del eutéctico Cu -Al. El bimetal Cu/Al fue obtenido por soldadura por explosión. La composición química del material tras los tratamientos térmicos se analizó por medio de análisis EDS (Espectroscopia de Energías Dispersiva de Rayos X). La conductividad eléctrica se midió mediante ensayos con corrientes Eddy. Las zonas endurecidas en el material soldado por explosión fueron identificadas. El valor experimental obtenido de la conductividad eléctrica está en concordancia con el calculado por la regla de las mezclas. Los tratamientos térmicos dan lugar a la formación de múltiples intercaras de alta dureza, compuestos de intermetálicos. La conductividad eléctrica de las intercaras identificadas es significativamente menor que las correspondientes al Cu y al Al.

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“…[9,10] Up to now, bipolar plates of stainless steels, [11][12][13][14][15][16][17][18][19][20][21] aluminum alloys, [22][23][24][25][26][27] titanium alloys, [28][29][30] bulk metallic glasses, [31] copper alloys, [32] and nickel alloys [33] have been manufactured by stamping or hydroforming processes. [43][44][45][46][47] In this study, the effect of heat treatment conditions on the mechanical properties of Cu/Al clad sheets and the formability of array micro channels by micro coining process were investigated. [34,35] Hong and Weil [36] investigated the formability of Niobium (Nb) À clad 304 L stainless steel (SS) used as a bipolar plate via bend and quasi-static tensile tests.…”

Section: Introductionmentioning

confidence: 99%

“…Interfacial structures, properties, and their effects on the mechanical properties of Cu/Al clad composites have been studied by many investigators. [43][44][45][46][47] In this study, the effect of heat treatment conditions on the mechanical properties of Cu/Al clad sheets and the formability of array micro channels by micro coining process were investigated. The interface layer of Cu/Al clad sheet formed during heat treatment was analyzed by scanning electron microscope (SEM) and microhardness tests.…”

Section: Introductionmentioning

confidence: 99%

Effect of Annealing on Mechanical Property and Formability of Cu/Al Clad Bipolar Plates in Proton Exchange Membrane Fuel Cells

et al. 2016

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The effect of annealing on the mechanical property in uniaxial tension tests and formability in micro coining processes of Cu/Al clad bipolar plates in proton exchange membrane fuel cells (PEMFC) is investigated. The results indicate both the thickness and the micro hardness of the interface layer increase with the increase of the holding time. The stress decreases firstly then increases with the increase of the holding time. The elongation decreases monotonically with the increase of the holding time. The micro coining of array micro channels results indicate that the height of micro rib increases with loading. The height of micro rib increases from the center to the edge along the transverse direction of the specimen. The simulation result by finite element method (FEM) verifies the experimental one.

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Impact of temperature on shear strength of single lap Al–Cu bimetallic joint

Cited by 49 publications

References 28 publications

Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding

Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding

Investigación sobre fusión de contacto en materiales compuestos laminados Cu/Al

Effect of Annealing on Mechanical Property and Formability of Cu/Al Clad Bipolar Plates in Proton Exchange Membrane Fuel Cells

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