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Aleksander Gałka 1 , Krzysztof Gałka 1 , Fabian Żok 1 , Piotr Bazarnik 2

Selected aspects of manufacturing and testing of multilayer Al-Ti materials with enhanced ballistic resistance for areonautic and space constructions. Aleksander Gałka 1 , Krzysztof Gałka 1 , Fabian Żok 1 , Piotr Bazarnik 2 1 Zakład Technologii Wysokoenergetycznych „ Explomet ”

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Aleksander Gałka 1 , Krzysztof Gałka 1 , Fabian Żok 1 , Piotr Bazarnik 2

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  1. Selected aspects of manufacturing and testing of multilayer Al-Ti materials with enhanced ballistic resistance for areonautic and space constructions Aleksander Gałka1, Krzysztof Gałka1, Fabian Żok1, Piotr Bazarnik2 1 Zakład Technologii Wysokoenergetycznych „Explomet” 2Politechnika Warszawska

  2. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions Aluminum 2519/ Titanium Grade 5 Overview • Both areperfectconstruction materials (high endurance and lowdensity) • Combiningthemcangiveinterestingresults • Clad materials will be tested in variousaspects • Microstructure • Mechanical • Fatigue • Ballisticresistance Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  3. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions Test Plan • Manufacturesamplecladplates in followingsizes • (3 + 3) x 300 x 500mm • (5 + 5) x 300 x 500mm • (10 + 10) x 300 x 500mm • In followingbondingvarieties • Direct bonding Ti6Al4V/2519 • Bonding Ti6Al4V/2519 with 1mm Al1050 interlayer • Bonding Ti6Al4V/2519 with 0,8mm TiGr2 interlayer Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  4. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions ExplosiveMaterialSelection • Detonationvelocitymeasurement in variousthicknesses • Selectioncriterias: • stable course of the detonation in the usable layer • appropriate level of initiation sensitivity • appropriate resistance to atmospheric conditions, especially satisfactory hydrophobic properties • low manufacturing cost • maximal usability safety Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  5. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions ExplosiveMaterialSelection Detonationvelocitymeasurementresults Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  6. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions ManufacturedSamplePlates Performedtests • Ultrasonic examination of the bonding zone • Mechanical endurance examination consisting of sheer, tensile and bend tests • Micro hardness measurement • Microstructure assessment Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  7. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions ManufacturedSamplePlates includingbondingparameters Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  8. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions HeatTreatment • HT1 - Annealing in 530 deg. C for 0,5 hours and cooling in air (C signing) • HT2 - Annealing in 530 deg. C for 0,5 hours and cooling in water, ageing in 150 deg. C for 10 hours, cold rolling with 15%mechanicalreduction of the Al layer (signingC1) • HT3 – Annealing in 530 deg. C for 0,5 hours and cooling in water • HT4 - Annealingin 420 deg. C for 1 hour, cooling in air (signing C2). Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  9. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrostructuralTest Assessment Sampleplate 32A with Al1050 interlayer – SEM image Intermetalliclayer Al 1050 Ti Gr5 Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  10. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrostructuralTest Assessment Sampleplate 32A with Al1050 interlayer – SEM (BSE) image Ti Gr5 Al1050 Intermetallic layer Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  11. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrostructuralTest Assessment Intermetalliclayer (2519/1050) visible in EDX spectrum Intermetalliclayer 1 – 10 um Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  12. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrostructuralTest Assessment Sampleplates with Al1050 interlayer Al 2519 Al 1050 Al 2519 BSE image and EDX spectrum. Copperemmision on the 2519 side on the boarder of the 2519/1050 bond. No intermetalliclayer was present. Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  13. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrostructuralTest Assessment Sample 56 - directbonding TiGr5/Al2519 Al 2519 Ti Gr5 TiGr5/Al2519 bondzone. No intermetallicphasefound. Regular network of copperemissionsfound on the 2519 side. Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  14. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrohardnessAnd EnduranceTests Sample 32A Author: Michał Najwer, Opole University of Technology Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  15. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MicrohardnessAnd EnduranceTests Observations • Applied heattreatmentdoes not influence hardening of titanium. • Significanthardnessreduction of Al1050 in eachheattreatmentscenario. • Rise of Al2519 hardness. • Best hardeningachieved by thermomechanicprocessingdue to longmaterialcoolingtimes/ ageing and materialdeformationduringcold rolling and emissionprocesses (copper) in the bondzone. Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  16. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MechanicalTesting Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  17. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MechanicalTesting Tensile test results. Thermomechanicprocessingresulted in 10% rise of endurance. Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  18. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MechanicalTesting Ram tensile test Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  19. New advancedlayer Al-Ti materials with enhancedballisticresistance for aeronautic and spaceconstructions MechanicalTesting Energyabsorptioncomparison (sample 55A/T) Interlayer Al1050 Al2519 Al1050 TiGr5 Al2519 Al1050 TiGr5 Interlayer TiGr2 Al2519 TiGr2 TiGr5 Al2519 TiGr2 TiGr5 Difference in energyabsorbed by the materials structure Umowa nr PBS2/A5/35/2013 z dn.24.10.2013, realizacja zadania nr 4

  20. xplomet ZAKŁAD TECHNOLOGII WYSOKOENERGETYCZNYCH EXPLOMET GAŁKA, SZULC SPÓŁKA JAWNA THANK YOU FOR YOUR ATTENTION

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