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Structural transformations in A l -C u composite

Structural transformations in A l -C u composite I. S. Los', A. V. Khorin , G. V. Kozlov , and A. V. Pryshchak Penza State University. XII International Symposium on Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014). Purpose.

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Structural transformations in A l -C u composite

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  1. Structural transformations in Al-Cu composite I. S. Los', A. V. Khorin, G. V. Kozlov, and A. V. Pryshchak Penza State University XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014)

  2. Purpose XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Analysis of the Al-Cu composite properties with intermetallic hardening obtained as a result of complex technology.

  3. Complex composite technology XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Explosive welding Rolling Heat treatment Micro arc oxidation Finished material

  4. Explosive welding scheme XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) 1 – explosive; 2, 4 – matrix plates; 3 – Cu filaments;γ – angle of impact; D – direction of detonation; V – impact velocity; Vк – contact point velocity; k1 – gap betweenmatrix plates Form fibers : d – fiber diameter; h – strip height; a – strip width

  5. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Modeling by LS-DYNA program t = 10,7 µs t = 12,1 µs t = 22,7 µs

  6. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) The composite structure after explosive welding dedicated fragment microstructure macrostructure in cross-section

  7. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) The composite microstructure after rolling 50 % ×100 25 % ×100 93 % ×150

  8. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) The composite microstructure after heat treatment × 200 1 – aluminum matrix; 2 – phase CuAl2; 3 – phase CuAl; 4 – copper fiber X-ray spectrum phase CuAl × 200 phase CuAl2 9,5 … 10,5 GPa phase CuAl 6,0…7,5 GPa X-ray spectrum phaseCuAl2

  9. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Mechanical property the composite material after explosive welding, rolling and heat treatment

  10. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Comparison diagramsof mechanical characteristics Tensile strength, GPa Modulus of elasticity, GPa 1 2 3 1 2 3 Specific modulus of elasticity, 103 km Specific strength, km 1 2 3 1 2 3 1– AlMg2;2 – Composite after heat treatment; 3 – Composite after heat treatmentand micro arc oxidation technology

  11. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Conclusions X-ray spectral analysis had following result: phase side with copper consists of CuAl predominately and phase side with aluminum consists of CuAl2 predominately. The interdiffusion coefficient activation energy of CuAl was 150,3 kJ/mol, CuAl2 - 96,3 kJ/mol. Aluminum-copper intermetallic composite has high mechanical property and handling ability. Complex technology is protected by patent.

  12. XII International Symposiumon Explosive Production of New Materials: Science, Technology, Business, and Innovations (EPNM-2014) Thank you for attention! E-mail: metal@pnzgu.ru Phone/fax: +78412368453

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