Abstract
Slip behavior, fracture toughness, and fatigue thresholds of a high purity Al-Li-Cu alloy with Zr as a dispersoid forming element have been studied as a function of aging time. The fracture toughness variation with aging time has been related to the changes in slip planarity,i.e., slip band spacing and width. Although the current alloy exhibits planar slip for all aging conditions examined, the crack initiation toughness,Klc, compares favorably with those of 2XXX and 7XXX aluminum alloys. Near threshold fatigue crack growth results in air and vacuum suggest that irregularities in the crack profile and the fracture surfaces and slip reversibility are some of the major contributing factors to the crack growth resistance of this alloy.
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J. S. Ekvall, J. E. Rhodes, and G. G. Wald: inDesign of Fatigue and Resistant Structures, ASTM STP 761, 1982, p. 328.
W. E. Quist, G. H. Harinarayanan, and A. L. Wingert: inAluminum- Lithium Alloys II, E. A. Starke, Jr. and T. H. Sanders, Jr., eds., TMS- AIME, Warrendale, PA, 1984, p. 313.
E. A. Starke, Jr., T. H. Sanders, Jr., and I.G. Palmer:J. of Metals, 1981, vol. 33, no. 8, p. 24.
W. S. Miller, A. J. Cornish, A. P. Tichener, and D. A. Bennet: inAluminum-Lithium Alloys II, E. A. Starke, Jr. and T. H. Sanders, Jr., eds., TMS-AIME, Warrendale, PA, 1984, p. 355.
T.H. Sanders, Jr. and E. A. Starke, Jr., eds.,Aluminum-Lithium Alloys, TMS-AIME, 1981.
E. A. Starke, Jr. and T. H. Sanders, Jr., eds.,Aluminum-Lithium Alloys II, TMS-AIME, Warrendale, PA, 1984.
W.X. Feng, F. S. Lin, and E. A. Starke, Jr.:Metall. Trans. A, 1984, vol. 15A, p. 1209.
E.A. Starke, Jr. and F. S. Lin:Metall. Trans. A, 1982, vol. 13A, p. 2259.
B. Noble and G. E. Thompson:Metal Science Journal, 1971, vol. 5, p. 114.
B. Noble and G. E. Thompson:Metal Science Journal, 1972, vol. 6, p. 167.
K. Schneider and M. Von Heimendahl:Z. Metallkde, 1973, vol. 64(5), p. 342.
F. W. Gayle and J. B. Van der Sande:Scr. Met., 1984, vol. 18, p. 473.
P. Hirsch, A. Howie, R. B. Nicholson, D.W. Pashley, and M.J. Whelan: inElectron Microscopy of Thin Crystals, R. E. Kreiger Pub- lishing Co., Huntington, NY, 1977, p. 336.
C. Laird and H.I. Aaronson:Trans. TMS-AIME, 1968, vol. 242, p. 1393.
J.M. Silcock:J. Inst. Met., 1959-60, vol. 80, p. 357.
B. Noble, I. R. McLauchlin, and G. Thompson:Acta Metall., 1970, vol. 18, p. 339.
P. J. Gregson and H. M. Flower:Acta Metall., 1985, vol. 33 (3), p. 532.
S. Cersora, G. Cocco, G. Fayherazzi, and L. Schiffini:Phil. Mag., 1977, vol. 35, p. 373.
T. H. Sanders and E. A. Starke:Acta Metall., 1982, vol. 36, p. 927.
H. Gleiter and E. Hornbogen:Mat. Sci. Engr., 1967/68, vol. 2, p. 285.
H. Gleiter and E. Hornbogen: Phys. Stat. Sol., 1965, vol. 12, p. 235.
E. Hornbogen and K. H. Zum Gahr:Metallography, 1975, vol. 8, p. 181.
G. Liitjering and S. Weissman:Acta Metall., 1970, vol. 18, p. 785.
E. Hornbogen and G. Liitjering:6th Intern. Conf. on Light Metals, Leoben/Vienna, Aluminum Verlag Dusseldorf, 1975, p. 40.
A. Gysier, G. Liitjering, and V. Gerold:Acta Metall., 1974, vol. 22, p. 901.
G. Terlinde and G. Luetjering:Metall. Trans. A, 1982, vol. 13A, p. 1283.
P.M. Kelly:Inter. Met. Rev., 1973, vol. 18, p. 31.
E. Hornbogen: inStrength of Metals and Alloys, R. C. Gifkin, ed., ICSMA 6, 1982, vol. 3, p. 1059.
C. J. Beevers: inFatigue Thresholds, Fundamentals and Engineering Applications, J. Backlund, A. F. Blom, and C. J. Beevers, eds., Engi- neering Materials Advisory Services, Ltd., West Midlands, UK, 1981, vol. 1, p. 257.
S. Suresh: Brown University, Providence, RI, private communication, 1985.
J. Petit, B. Bouchet, C. Goss, and J. de Fouguet:Fracture, Proc. 4th Int. Conf. on Fracture (ICF4), D. M. R. Taplin, ed., University of Waterloo Press, Waterloo, ON, Canada, 1977, vol. 2, p. 687.
A. K. Vasudévan, P. E. Bretz, A. C. Miller, and S. Suresh:Mater. Sci. and Eng., 1984, vol. 64, p. 113.
R. D. Carter, E. W. Lee, E. A. Starke, Jr., and C. J. Beevers:Metall. Trans. A, 1984, vol. 15A, p. 555.
R.L. Donahue, H. M. Clarke, P. Alonanio, R. Kumble, and A.J. McEvily:Inter. J. of Fract. Mech., 1972, vol. 8, p. 209.
J. Lindigkeit, G. Terlinde, A. Gysler, and G. Liitjering:Acta Metall., 1979, vol. 27, p. 1717.
E. Hornbogen and K-H. Zum Gahr:Acta Metall., 1976, vol. 24, p. 581.
S. Suresh:Metall. Trans. A, 1985, vol. 16A, p. 249.
H. A. Hall: Corrosion, June 1967, p. 175.
S. Suresh, A. K. Vasudévan, and P. E. Bretz:Metall. Trans. A, 1984, vol. 15A, p. 369.
S. Suresh and R.O. Ritchie:Metall. Trans. A, 1982, vol. 13A, p. 1627.
F. S. Lin, S. B. Chakrabortty, and E. A. Starke, Jr.:Metall. Trans. A, 1982, vol. 13A, p. 401.
A. K. Vasudévan and S. Suresh:Mater. Sci. and Eng., 1985, vol. 72, p. 37.
J. M. Silcock, T. J. Heal, and H. K. Hardy:J. Inst. of Met., 1955-56, vol. 84, p. 23.
J.D. Boyd and R.B. Nicholson:Acta Metall., 1971, vol. 19, p. 1979.
J. T. Staley:Properties Related to Fracture Toughness, W. R. Warke, V. Weiss, and G. T. Hahn, eds., ASTM STP 605, ASTM, 1975, p. 71.
S.J. Hans, K. Dinsdale, and B. Noble: inAl-Li Alloys II, E.A. Starke, Jr. and T. H. Sanders, Jr., eds., TMS-AIME, Warrendale, PA, 1984.
G.G. Garret and J.F. Knott:Metall. Trans.A, 1978,vol. 9A, p. 1187.
G. T. Hahn and A. R. Rosenfield:Metall. Trans. A, 1975, vol. 6A, p. 653.
J. G. Rinker, M. Marek, and T. H. Sanders, Jr.: inAluminum-Lithium Alloys, E.A. Starke, Jr. and T.H. Sanders, Jr., eds., TMS-AIME, Warrendale, PA, 1984, p. 597.
W. W. Gerberich:Experimental Mechanics, 1964, vol. 4, p. 335.
G.T. Hahn and A. R. Rosenfield: ASTM STP 432, 1968, p. 27.
E. Smith, T. S. Cook, and C. A. Rau:Fracture, Proc. 4th Int. Conf. on Fracture (ICF4), D.M.R. Taplin, ed., University of Waterloo Press, Waterloo, ON, Canada, 1977, vol. 1, p. 215.
Johaness Weertman: inFatigue and Microstructure, M. Meshii, ed., American Society for Metals, Metals Park, OH, 1979, p. 279.
V. Vitek:J. Mech. Phys. Solids, 1976, vol. 24, p. 263.
J. F. Knott: inFundamentals of Fracture Mechanics, Butterworths & Co. (Publishers) Ltd., London, UK, 1973, p. 89.
R. O. Ritchie, W. L. Server, and R. A. Wullaert:Metall. Trans. A, 1979, vol. 10A, p. 1557.
R. O. Ritchie and A. W. Thompson:Metall. Trans. A, 1985, vol. 16A, p. 233.
Judith M. Dowling and J.W. Martin:Acta Metall., 1976, vol. 24, p. 1147.
J. D. Evensen, N. Ryum. and J. D. Embury:Mat. Sci. Engr., 1975, vol. 18, p. 221.
R. F. Ashton, D.S. Thompson, E.A. Starke, Jr., and F. S. Lin: inAl-Li Alloys III, C. Baker, P. J. Gregson, S. J. Harris, and C. J. Peel, eds., The Institute of Metals, London, 1986, p. 66.
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Jata, K.V., Starke, E.A. Fatigue crack growth and fracture toughness behavior of an Al-Li-Cu alloy. Metall Trans A 17, 1011–1026 (1986). https://doi.org/10.1007/BF02661267
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DOI: https://doi.org/10.1007/BF02661267