Home Technology Residual Stress Analysis in Actively Brazed Joints of Aluminium Nitride and Copper Using Neutron and X-Ray Diffraction
Article
Licensed
Unlicensed Requires Authentication

Residual Stress Analysis in Actively Brazed Joints of Aluminium Nitride and Copper Using Neutron and X-Ray Diffraction

  • EMAIL logo , , and
Published/Copyright: January 5, 2022

Abstract

Thin plates of A1N were joined with Cu sheets by active brazing, and the residual stresses generated by the brazing process were investigated by neutron and X-ray diffraction. Residual stresses with values between 100 MPa and – 150 MPa were found in the ceramic layers. The residual stresses in the Cu layers had to be inferred from the balance of forces, because coarse grain effects and a strong variation of the stress-free lattice constant across the thickness due to interdiffusion of the brazing metal and the Cu layer did not allow to obtain reliable residual stress values by diffraction methods. The results are discussed with regard to failure of the joints due to cracking.


L. Pintschovius Forschungszentrum Karlsruhe Institut für Festkörperphysik P. O. Box 3640, D-76021 Karlsruhe, Germany Fax:+49 7247 824624

Dedicated to Professor Dr.-Ing. Helmut Wohlfahrt on the occasion of his 65th birthday


  1. The authors thank Ms. E. Auerswald and Dr. B. Kämpfe from Fraunhofer Gesellschaft, IZM Berlin, for providing the samples.

Literature

1 Lugscheider, E.; Krappitz, H.: Joining Ceramic, Glass, Metal, DGG-Verlag, Frankfurt/M. (1985) 199.Search in Google Scholar

2 Welle, E.; Reimers, W.: In: V. Hauk, H.P. Hougardy, E. Macherauch, H.-D. Tietz (eds.), Residual Stresses, DGM Informationsgesellschaft Verlag, Oberursel (1993) 575.Search in Google Scholar

3 Lorentzen, T.; Christensen, J.C., in: M.R.James (ed.), Proc. 4th Int. Conf. on Residual Stresses, ICRS4, Society for Experimental Mechanics, Bethel, CT (1994) 777.Search in Google Scholar

4 Pintschovius, L.; Pyka,N.; Kussmaul, R.; Munz, D.; Eigenmann, B.; Scholtes, B.: Mater. Sei. Eng. A 177 (1994) 55.10.1016/0921-5093(94)90477-4Search in Google Scholar

5 Dannheim, H.; Faber, M.; Brunner, D.; Auerswald, E.; Dudeck, R.; Faust, W.: DVS 184 (1997) 126.Search in Google Scholar

6 Macherauch, E.; Müller, P.: Z. angew. Physik 13 (1961) 305.Search in Google Scholar

7 Kämpfe, A.; Eigenmann B.; Löhe, D.: High Temp. Mater. Proc. 2 (1998) 309.10.1615/HighTempMatProc.v2.i3.20Search in Google Scholar

8 Eigenmann, B.; Macherauch, E.: Mat.-Wiss. u. Werkstofftech. 26 (1995) 148 and 199; 27 (1996) 426 and 491.10.1002/mawe.19950260310Search in Google Scholar

9 Pintschovius, L.: In: V. Hauk (ed.), Structural and Residual Stress Analysis by Nondestructive Methods, Elsevier Science, Amsterdam (1997) 495.Search in Google Scholar

10 Amos, D.; Eigenmann, B.; Macherauch, E.; Löhe, D.: In: S. Denis et al. (eds.), Proc. 4th Europ. Conf. on Residual Stresses, Société Française de Métallurgie et de Matériaux, Cluny (1996) 277.Search in Google Scholar

Received: 2000-12-07
Published Online: 2022-01-05

© 2001 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Aufsätze
  3. Entwicklung einer neuen Metallgießtechnik für die Mikromechanik
  4. Residual Shear Stresses of Ground Materials and Their Alterations by Elastic and Plastic Deformations
  5. Mechanisch-technologische Eigenschaften strahlgeschweißter höher- und hochfester Karosseriestähle
  6. Laserstrahlumformen von Aluminiumwerkstoffen unter Berücksichtigung der mechanischen Eigenschaften und der Mikrostruktur
  7. Fertigungsbedingte Risse durch ungünstige schweißtechnische Gestaltung und Ausführung
  8. Heißrissvermeidung beim einseitigen Unterpulver-Tandem-Schweißen langer Bleche
  9. Verzugsentstehung bei Wärmebehandlungsprozessen
  10. Einige Probleme der FE-Simulation zur Wasserstoff- und Stickstoffverteilung beim Schweißen
  11. Residual Stress Measurements on Laser Beam Welds in Aluminium by X-Ray Diffraction Methods
  12. Stress-Controlled Fatigue of Magnesium Wrought Alloy AZ31 in the Temperature Range
  13. Application of X-Ray Diffraction Analysis on Microstructural Investigations of Laser-Hardened Steel Surfaces
  14. Residual Stresses and Deformation in Dissimilar Girth Welds: Numerical Simulations and Experimental Verifications
  15. Residual Stress Analysis in Actively Brazed Joints of Aluminium Nitride and Copper Using Neutron and X-Ray Diffraction
  16. Besonderheiten beim MIG-Schweißen von Magnesiumlegierungen
  17. Schweißbedingte Anlauffarben und ihr Einfluss auf die Korrosion hochlegierter CrNi-Stähle
  18. Erweiterung der numerischen Schweißsimulation zur Untersuchung metallkundlicher Fragestellungen
  19. Wasserstoff in Aluminium-Druckgussteilen Hydridbildung und deren Auswirkungen auf Werkstoffkennwerte, Wärmebehandel-und Schweißbarkeit
  20. Phase Analysis of Creep-Resistant Fe–C–Cr–Mo–V (W) Steels after Long-Term Service Exposure
  21. Mitteilungen/Notifications
  22. Personen
  23. Tagungen/Conferences
Downloaded on 27.3.2026 from https://www.degruyterbrill.com/document/doi/10.3139/ijmr-2001-0055/html
Scroll to top button