Fatigue Crack Propagation Rates and Local Texture Relationship in 2099-T83 Al-Li Alloy

Franck Armel Tchitembo Goma; Daniel Larouche; Carl Blais; Raynald Gauvin; Julien Boselli; Alexandre Bois-Brochu; Mathieu Brochu

doi:10.4028/www.scientific.net/AMR.409.9

Paper Titles

Consolidation of Ti Powder by a Compression Rotation Shearing System at Room Temperature - Effect of Pivot Rotation Speed on Consolidation
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Fatigue Crack Propagation Rates and Local Texture Relationship in 2099-T83 Al-Li Alloy
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Influence of Mixing Parameters on the Density and Compaction Behavior of Carbon Anodes Used in Aluminum Production
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Recovery Behaviour at the Inter-Alloy Region of a Cold Rolled Clad Aluminum Alloy
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Al-Li Alloy 2099-T83 Extrusions: Static Mechanical Properties, Microstructure and Texture
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Effect of Grain Refinement on Residual Strain and Hot Tearing in B206 Aluminum Alloy
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Microstructure Evolution in an Al-Cu-Mg-Ag Alloy during ECAP at 300°C
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Analysis on Behavior of Hydrogen in Ion-Plated Pure Aluminum
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 409Fatigue Crack Propagation Rates and Local Texture...

Fatigue Crack Propagation Rates and Local Texture Relationship in 2099-T83 Al-Li Alloy

Abstract:

An integrally stiffened panel (ISP) made from extruded 2099-T83 Al-Li alloy was subjected to fatigue loadings to investigate the influence of both the local texture and grain structure on fatigue crack propagation (FCP) behavior. The microstructure was mainly unrecrystallized. Grains were mostly layered in the web and fibrous in the other locations. Fiber texture components were present in the stiffener locations, and a rolling-type texture in the web. Resistance to FCP decreases as the local aspect ratio increases. Changes in FCP rates in the web, stiffener base and stiffener web were consistent with the microstructural features and texture. The stiffener cap with a strong fiber texture similar to that of the stiffener base exhibited a lower resistance to FCP, suggesting that the influence of the texture is convoluted in the stiffener cap by the markedly different grain structure. Therefore, FCP behavior in this alloy appears to be governed by both texture and grain structure.

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Periodical:

Advanced Materials Research (Volume 409)

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9-14

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.409.9

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Online since:

November 2011

Authors:

Franck Armel Tchitembo Goma, Daniel Larouche, Carl Blais, Raynald Gauvin, Julien Boselli, Alexandre Bois-Brochu, Mathieu Brochu

Keywords:

Al-Li Alloys, Extrusion Aspect Ratio, Fatigue Crack Propagation, Local Texture

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References

[1] K. K. Sankaran and N. J. Grant, The structure and properties of splat-quenched aluminium alloy 2024 containing lithium additions. Mater Sci Eng, 1980. 43: pp.247-260.

DOI: 10.1016/0025-5416(80)90122-6

Google Scholar

[2] C. J. Peel, B. Evans, C. A. Baker, D. A. Bennet, P. J. Gregson, and H.M. Flower, The development and application of improved aluminium-lithium alloys, in Aluminium-Lithium Alloys II. 1984, The Metallurgical Society of AIME: Warrendale, PA, USA. pp.363-392.

Google Scholar

[3] K. T. Venkateswara Rao, W. Yu, and R. O. Ritchie, Fatigue crack propagation in aluminium-lithium alloy 2090: Part I. long crack behavior. Metallurgical Transactions A, 1988. 19A: pp.549-562.

DOI: 10.1007/bf02649269

Google Scholar

[4] C. Giummara, B. Thomas, and R. J. Rioja. New aluminium lithium alloys for aerospace applications. in The light metals technology. (2007).

Google Scholar

[5] P. S. Pao, L. A. Cooley, M. A. Imam, and G. R. Yoder, Fatigue-crack growth in 2090 Al-Li alloy. Scripta Metallurgica, 1989. 23: pp.1455-1460.

DOI: 10.1016/0036-9748(89)90076-8

Google Scholar

[6] K. T. Venkateswara Rao, R. J. Bucci, K. V. Jata, and R. O. Ritchie, A comparaison of fatigue-crack propagation behavior in sheet and plate aluminium-lithium alloys. Mater Sci Eng, 1991. A141: pp.39-48.

DOI: 10.1016/0921-5093(91)90705-r

Google Scholar

[7] D. L. Chen, M. C. Chaturvedi, N. Goel, and N. L. Richards, Fatigue crack growth behavoir of X2095 Ali-Li alloy. Int. J. Fatigue, 1999. 21: pp.1079-1086.

DOI: 10.1016/s0142-1123(99)00087-0

Google Scholar

[8] X. J. Wu, W. Wallace, M.D. Raizenne, and A.K. Koul, The orientation dependence of fatigue-crack growth in 8090 al-li plate. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, 1994. 25(3): pp.575-588.

DOI: 10.1007/bf02651599

Google Scholar

[9] M. D. Garratt, G. H. Bray, and D. A. Koss. Influence of texture on fatigue crack growth behavior. in Materials Solutions. 2001. Indianapolis.

Google Scholar

[10] M. D. Garratt, G. H. Bray, D. K. Denzer, and P. Ulysse, Structural members having improved resistance to fatigue crack growth. 2005, Alcoa Inc. USA. Patent 6, 974, 633 B2.

Google Scholar

[11] G. Vandert Voort, W. Van Geertruyden, S. Dillon, and E. Manilova, Metallographic Preparation for Electron Backscatered Diffraction. Microscopy and Microanalysis, 2006. 12: pp.1610-1611.

DOI: 10.1017/s1431927606069327

Google Scholar

[12] ASTM standard E 399, Annual book of ASTM Standards. 1997, American Society for Testing and Materials: Philadelphia (PA).

Google Scholar

[13] W. Elber, Fatigue crack closure under cyclic tension. Engineering Fracture Mechanics, 1970. 2: pp.37-45.

DOI: 10.1016/0013-7944(70)90028-7

Google Scholar

[14] R. O. Ritchie, Mechanisms of fatigue crack propagation in metals, ceramics and composite: Role of crack tip shielding. Mater. Sci. Eng. A, 1988. 103: p.15.

DOI: 10.1016/0025-5416(88)90547-2

Google Scholar