Journal of Failure Analysis and Prevention

, Volume 8, Issue 3, pp 249–254 | Cite as

Stress Corrosion Cracking of Tough Pitch Copper in a Bolting Application

  • Joseph Maciejewski
  • Burak Akyuz
Techical Article---Peer-Reviewed


Stress corrosion cracking was observed in C11000 and C10200 copper electrical feedthrough pins used in a bolting application. The component provided the balancing tensile stress required for compression of a gasket seal of a refrigeration compressor. The component, as designed, had functioned without failure for years of production and thousands of units. The fractures were mixed brittle intergranular with ductile microvoid dimples. An extensive analysis of actual failed samples as well as a process of elimination methodology indicated that the fractures were due to SCC by an unidentified chemical species within the sealed compressor chamber. A unique combination of applied stress, residual stress, a stress riser, and fine-grain size isolated the failure mechanism to a single production lot of material.


Stress corrosion cracking Tough pitch copper SCC Copper C11000 C10200 


  1. 1.
    ASM Metals Handbook, vol. 11, pp. 644–645, 817 (2002)Google Scholar
  2. 2.
    Copper and Copper Alloys, ASM International, pp. 246, 455 (2001)Google Scholar
  3. 3.
    Lainer, D.I., Tyspin, M.I.: Plasticity, brittleness, and superplasticity of copper. Sov. Phys. Dokl. 18(3), 195–196 (1973)Google Scholar
  4. 4.
    ASM Metals Handbook, vol. 2, 10th Edition, pp. 216, 274 (1990)Google Scholar
  5. 5.
    ASM Metals Handbook, vol. 13, pp. 610, 615 (1987)Google Scholar
  6. 6.
    Stevenson, M.E., Barkey, M.E., McDougall, J.L.: Stresses in bent copper tubing: applications to fatigue and stress corrosion cracking failure mechanisms. J. Fail. Anal. Preven. 5(6), 25–29 (2005)CrossRefGoogle Scholar
  7. 7.
    McDougall, J.L., Stevenson, M.E.: Stress corrosion cracking in copper refrigerant tubing. J. Fail. Anal. Preven. 5(1), 13–16 (2005)CrossRefGoogle Scholar
  8. 8.
    Duffner, D.H.: Air conditioner failure investigation—intergranular cracking in a pure copper condenser tube. J. Fail. Anal. Preven. 5(1), 79–85 (2005)CrossRefGoogle Scholar
  9. 9.
    Bianchi, G.L., Galvele, J.R.: Stress corrosion cracking of pure copper and pure silver in gaseous environments. Corros. Sci. 34(9), 1411–1422 (1993)CrossRefGoogle Scholar
  10. 10.
    Farina, S.B., Duffo, G.S., Galvele, J.R.: Stress corrosion cracking of copper and silver, specific effect of the metal cations. Corros. Sci. 47, 239–245 (2005)CrossRefGoogle Scholar
  11. 11.
    Mori, G., Scherer, D., Schwentenwein, S., Warbichler, P.: Intergranular stress corrosion cracking of copper in nitrite solutions. Corros. Sci. 47, 2099–2124 (2005)CrossRefGoogle Scholar
  12. 12.
    Jang, Y.H., Kim, S.S., Han, S.Z., Lim, C.Y., Kim, C.J.: Corrosion and stress corrosion cracking behavior of equal channel angular pressed oxygen-free copper in 3.5% NaCl solution. J. Mater. Sci. 41, 4293–4297 (2006)CrossRefGoogle Scholar
  13. 13.
    Lenox, R.S., Hough, P.A.: Minimizing corrosion of copper tubing used in refrigeration systems. ASHRAE J. 37(11), 50–56 (1995)Google Scholar

Copyright information

© ASM International 2008

Authors and Affiliations

  1. 1.Applied Technical Services, Inc.MariettaUSA

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