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  Estonian Journal of Engineering

ISSN 1736-7522 (electronic)  ISSN 1736-6038  (print)

 An international scientific journal
Formerly: Proceedings of the Estonian Academy of Sciences Engineering
(ISSN 1406-0175)
Published since 1995

Estonian Journal of Engineering

ISSN 1736-7522 (electronic)  ISSN 1736-6038  (print)

 An international scientific journal
Formerly: Proceedings of the Estonian Academy of Sciences Engineering
(ISSN 1406-0175)
Published since 1995

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Joining of CrNi steel and AlMg alloy without interlayers; pp. 273–284

(Full article in PDF format) doi: 10.3176/eng.2010.4.03


Authors

Steffen Dahms, Priit Kulu, Renno Veinthal, Ursula Basler

Abstract

The paper describes the substance-to-substance joining of the material combination CrNi steel and AlMg alloy. The joint was created through a thermal joining procedure in the solid state without interlayers. Material characteristics such as thermal strain and hardness were investigated. The investigations were conducted in the transition areas of the joining zones depending on the joining parameters. The joining quality of the surfaces was especially assessed and the diffusion zones were classified by means of the scanning electron microscope. Crack-free and homogeneous joining zones, which guarantee a high-quality joint with adequate strength, were the primary objective of the investigations.

Keywords

CrNi steel, AlMg alloy, diffusion joining, strain, hardness.

References

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2. Broda , T. , Herrmann , J. and Uhlemann , M. Fügetechnologien für Mischverbindungen durch Lotapplikation mittels Ultraschallschweißen. DVS-Berichte , Band 2009 “Die Verbindungs­spezialisten Tagungsband”. Verlag DVS Media GmbH , 206–212.

3. Wilden , J. and Bergmann , J.-P. Herstellung von Titan-Aluminium und Titan-Stahl-Verbindungen durch Diffusionsschweißen. Mitteilung aus der Technischen Universität Ilmenau , Fach­gebiet Fertigungstechnik , Schweißen und Schneiden , 2004 , 56 , 199–207.

4. Dahms , S. , Gemse , F. , Basler , U. , Martin , H.-P. and Triebert , A. Diffusion joining of silicon nitride ceramics. Estonian J. Eng. , 2009 , 15 , 301–308.
doi:10.3176/eng.2009.4.07

5. Dahms , S. , Gemse , F. and Basler , U. Diffusionsschweißen – ein innovatives Fügeverfahren für Werkstoffverbunde mit unterschiedlichen Eigenschaftsprofilen. DVS-Berichte , Band 2009 “Die Verbindungsspezialisten Tagungsband”. Verlag DVS Media GmbH , 54–59.

6. Pietrzak , K. , Kalinski , D. and Chmielewski , M. Interlayer of Al2O3-Cr functionally graded material for reduction of thermal stresses in alumina-heat resisting steel joints. J. Europ. Ceram. Soc. , 2007 , 27 , 1281–1286.
doi:10.1016/j.jeurceramsoc.2006.04.102

7. Travessa , D. , Ferrante , M. and den Ouden , G. Diffusion bonding of aluminium oxide to stainless steel using stress relief interlayers. In Materials Science and Engineering. Elsevier Science B.V. , 2002 , A337 , 287–296.

8. Zeng , L. , Case , E. D. and Crimp , M. A. The interfacial microstructure of joined single crystal and polycrystalline alumina. In Materials Science and Engineering. Elsevier Science B.V. , 2003 , A360 , 228–236.

9. Geguzin , J. E. Grundzüge der Diffusion in Kristallen. VEB Deutscher Verlag für Grundstoff­industrie , Leipzig , 1977.
 
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