Crack tip chemistry and electrochemistry of environmental cracks in AA 7050

Corrosion Science

Volumn 49, Issue 6, 2007, Pages 2636-2662

  Cooper, Kevin R ^a   Kelly, R G ^b  

^a Scribner Associates Inc   (United States)

^b University of Virginia   (United States)

Author keywords

A. Aluminum alloy; B. Experimental; C. Crack chemistry; C. Crack potential; C. Environment assisted cracking

Indexed keywords

ALUMINUM ALLOYS; CORROSION; ELECTROLYTES; MASS TRANSFER; PH EFFECTS; POLARIZATION;

CORROSION PRODUCTS; CRACK CHEMISTRY; CRACK POTENTIAL; ENVIRONMENT-ASSISTED CRACKING;

CRACKS;

ALUMINUM ALLOYS; CORROSION; CRACKS; ELECTROLYTES; MASS TRANSFER; PH EFFECTS; POLARIZATION;

EID: 34147169523     PISSN: 0010938X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.corsci.2006.12.001     Document Type: Article

References (59)

1. Speidel M.O., and Hyatt M.V. Stress-corrosion cracking of high strength aluminum alloys. Advances in Corrosion Science and Technology vol. 2 (1972), Plenum Press 115-321
2. Speidel M.O. Current understanding of the stress corrosion crack growth in aluminum alloys. In: Scully J.C. (Ed). Theory of Stress Corrosion Cracking in Alloys (1971), NATO 289-342
3. Speidel M.O. Metall. Trans. A 6 (1975) 631-651
4. Holroyd N.J.H. Environment-induced cracking of high-strength aluminum alloys. Environment-Induced Cracking of Metals. International Corrosion Conference Series vol. 10 (1990), NACE 311-345
5. Burleigh T.D. Corrosion 47 (1991) 89-98
6. Albrecht J., McTiernan B.J., Bernstein I.M., and Thompson A.W. Scripta Metall. 11 (1977) 893-897
7. Scamans G.M., and Tuck C.D.S. The role of hydrogen in environmentally sensitive mechanical behavior of AlZnMg alloys. Mechanisms of Environment Sensitive Cracking of Materials (1977), TMS 482-495
8. Christodoulou L., and Flower H.M. Acta Metall. 28 (1980) 481-487
9. Pickens J.R., Venables D., and Green J.A.S. Improved SCC resistance of Al-Zn-Mg alloys by control of Mg content in the bulk metal and in the oxide film. In: Bernstein I.M., and Thompson A.W. (Eds). Hydrogen Effects in Metals (1981), AIME 513-523
10. Hardwick D.A., Thompson A.W., and Bernstein I.M. Corr. Sci. 28 (1988) 1127-1137
11. Watson J.W., and Meshii M. Hydrogen in aluminum and aluminum alloys. In: Vasudevan A.K., and Doherty R.D. (Eds). Aluminum Alloys-Contemporary Research and Applications vol. 31 (1989), Academic Press, Inc 501-521
12. Speidel M.O. Hydrogen embrittlement and stress corrosion cracking of aluminum alloys. In: Gibala R., and Hehemann R.F. (Eds). Hydrogen Embrittlement and Stress Corrosion Cracking (1984), ASM International, Metals Park, OH 271-296
13. Cooper K.R., Young L.M., Gangloff R.P., and Kelly R.G. The electrode potential dependence of environment-assisted cracking of AA 7050. In: Starke Jr. E.A. (Ed). Seventh International Conference on Aluminum Alloys: Their Physical and Mechanical Properties vol. 3 (2000), Trans. Tech. Publications 1625-1634
14. Ford F.P. Met. Sci. 12 (1978) 326-334
15. Doig P., and Flewitt P.E.J. An analytical description of stress corrosion crack growth by anodic dissolution. In: Gangloff R.P. (Ed). Embrittlement by Localized Crack Environment (1984), TMS/AIME 305-325
16. Shoji T., Suzuki S., and Ballinger R.G. Theoretical prediction of scc growth behavior - threshold and plateau growth rate. Proceedings of the Seventh International Symposium on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors vol. 2 (1995), NACE 881-891
17. L.M. Young, Microstructural Dependence of Aqueous Environment-Assisted Crack Growth and Hydrogen Uptake in AA 7050, Ph.D. Dissertation, University of Virginia, 1999.
18. Turnbull A. Chemistry within localized corrosion cavities. Proceedings of the Second International Conference on Localized Corrosion vol. 9 (1990), NACE 359-373
19. Turnbull A. Corr. Sci. 23 (1983) 833-870
20. K.R. Cooper, R.G. Kelly, E.L. Colvin, The Correlation Between Crack Chemistry and Crack Growth Behavior of 7XXX Series Aluminum Alloys: A Comparison of Field and Laboratory Tests, Corrosion/1999 Conference, NACE, 1999, Paper No. 153.
21. Cooper K.R., and Kelly R.G. J. Chromatogr. A 850 (1999) 381-389
22. K.R. Cooper, Chemistry and Electrochemistry of Environment-Assisted Cracking of an Al-Zn-Mg-Cu Alloy, Ph.D. Dissertation, University of Virginia, 2001.
23. Cooper K.R., and Kelly R.G. Measurement and Modeling of Crack Conditions During the Environment-Assisted Cracking of an Al-Zn-Mg-Cu Alloy. In: Shipilov S.A. (Ed). Environmentally Induced Cracking of Materials II (2007), Elsevier 335-344
24. Andresen P.L., and Young L.M. Corrosion 51 (1995) 223-233
25. Andresen P.L. Advanced techniques for characterization of electrochemical effects in stress corrosion cracking. New Techniques for Characterizing Corrosion and Stress Corrosion (1995), TMS/AIME 193-215
26. Saxena A., and Hudak Jr. S.J. Int. J. Fract. 145 (1978) 453-467
27. In: Murakami Y. (Ed). Stress Intensity Factors Handbook vol. 1 (1987), Pergamon Press 24-25
28. Ives D.J.G., and Janz G.J. Reference Electrodes: Theory and Practice (1961), Academic Press
29. Nguyen T.H., Brown B.F., and Foley R.T. Corrosion 38 (1982) 319-326
30. Davis J.A. Use of microelectrodes for study of stress corrosion of aluminum alloys. Localized Corrosion vol. 3 (1971), NACE 168-172
31. Z.X. Huang, Y.D. He, Electrochemical behavior within the scc cracks of aluminum alloy LC-4, in: International Congress on Metallic Corrosion, vol. 3, 1984, pp. 495-502.
32. R.A.H. Edwards, Potential Drops and Concentration Changes in Stress Corrosion Cracks in 7075 Alloy in Halide Solutions, Ph.D. Dissertation, Delft University of Technology, 1983.
33. Kurov O.V., and Melekhov R.K. Protect. Met. 15 (1979) 249-250
34. Holroyd N.J.H., Scamans G.M., and Hermann R. Environmental interaction with the crack tip region during environment sensitive fracture of aluminum alloys. Embrittlement by the Localized Crack Environment (1984), TMS/AIME 327-347
35. Young L.M., Young G.A., Scully J.R., and Gangloff R.P. The effects of electrode potential and temper on environment assisted cracking in AA 7050. Light Weight Alloys for Aerospace Applications IV (1997), TMS/AIME 3-18
36. Z.M. Gasem, Frequency Dependent Environmental Fatigue Crack Propagation of AA 7075 in 3.5%NaCl, Ph.D., University of Virginia, 1999.
37. Newton C.J., and Holroyd N.J.H. Time-lapse video techniques in the corrosion testing of aluminum alloys. New Methods for Corrosion Testing of Aluminum Alloys (1992), ASTM 153-179
38. Cooper K.R., and Kelly R.G. Measurement and modeling of crack conditions during the environment-assisted cracking of an Al-Zn-Mg-Cu alloy. In: Shipilov S.A. (Ed). Environmentally Induced Cracking of Materials II (2007), Elsevier 335-344
39. Somerday B.P., Young L.M., and Gangloff R.P. Fatigue Fract. Eng. Mater. Struct. 23 (2000) 39-58
40. Buzza D.W., and Alkire R.C. J. Electrochem. Soc. 142 (1995) 1104-1111
41. Alkire R.C., and Feldman M. J. Electrochem. Soc. 135 (1988) 1850-1851
42. Wefers K., and Misra C. Oxides and Hydroxides of Aluminum (1987), Aluminum Company of America
43. Doward R.C., and Hasse K.R. Corr. Sci. 19 (1979) 131-140
44. Shastry C.R., Levy M., and Joshi A. Corr. Sci. 21 (1981) 673-688
45. Holroyd N.J.H., Scammans G.M., and Hermann R. Environmental conditions within crevices and stress-corrosion cracks in aluminum alloys. Corrosion Chemistry Within Pits, Crevices and Cracks (1987), Her Majesty's Stationery Office, UK 495-510
46. Baes C.J., and Mesmer R.E. The Hydrolysis of Cations. second ed. (1976), R.E. Krieger Publishing Company
47. Pourbaix M. Atlas of Electrochemical Equilibria in Aqueous Solutions. second ed. (1974), NACE
48. Brasch N.E., Buckingham D.A., Evans A.B., and Clark C.R. J. Am. Chem. Soc. 118 (1996) 7969-7980
49. Brasch N.E., Buckingham D.A., Evans A.B., and Clark C.R. J. Am. Chem. Soc. 119 (1997) 2596
50. Pickering H.W., and Valdes A. A review of the effect of gas bubbles and cavity dimensions on the local electrode potential within pits, crevices and cracks. Embrittlement by Localized Crack Environment (1984), TMS/AIME 33-48
51. Ateya B.G., and Pickering H.W. J. Electrochem. Soc. 122 (1975) 1018-1026
52. Bargernon C.B., and Benson R.S. J. Electrochem. Soc. 127 (1980) 2528-2530
53. Ford F.P., Burnstein G.T., and Hoar T.P. J. Electrochem. Soc. 127 (1980) 1325-1331
54. Frankel G.S., Jahnes C.V., Brusic V., and Davenport A.J. J. Electrochem. Soc. 142 (1995) 2290-2295
55. Newman R.C. Measurement and interpretation of electrochemical kinetics on bare metal surfaces. Corrosion Chemistry Within Pits, Crevices and Cracks (1987), Her Majesty's Stationary Office, UK 317-356
56. Raetzer-Scheibe H.J., and Tuck C.D.S. Corr. Sci. 36 (1994) 941-956
57. Kolman D.G., and Scully J.R. J. Electrochem. Soc. 143 (1996) 1847-1860
58. In: Stevenson M.F. (Ed). ASM Handbook. Surface Engineering vol. 5 (1994), ASM 482-493
59. F.P. Ford, Current understanding of the mechanisms of stress corrosion and corrosion fatigue, in: Environment-Induced Fracture: Evaluation and Comparison of Test Methods, ASTM STP 821, 1984, pp. 32-51.