0
TECHNICAL PAPERS

Fretting Stresses in Single Crystal Superalloy Turbine Blade Attachments

[+] Author and Article Information
Nagaraj K. Arakere

Mechanical Engineering Department, University of Florida, Gainesville, FL 32611-6300e-mail: nagaraj@ufl.edu

Gregory Swanson

NASA George C. Marshall Space Flight Center, ED22/Strength Analysis Group, MSFC, AL 35812

J. Tribol 123(2), 413-423 (Jun 27, 2000) (11 pages) doi:10.1115/1.1308032 History: Received February 22, 2000; Revised June 27, 2000
Copyright © 2001 by ASME
Your Session has timed out. Please sign back in to continue.

References

Hills, D. A., and Nowell, D., 1994, Mechanics of Fretting Fatigue, Kluwer, Deventer.
Cowles, B. A., 1996, “High Cycle Fatigue in Aircraft Gas Turbines—An Industry Perspective,” Int. J. Fract., pp. 1–16.
Dombromirski, J., 1990, “Variables of Fretting Process: Are There 50 of Them?” Standardization of Fretting Fatigue Test Methods and Equipment, ASTM, Metals Park, OH, pp. 60–68.
Deluca, D., and Annis. C, 1995, “Fatigue in Single Crystal Nickel Superalloys,” Tech. Report No. FR23800, Office of Naval Research, Department of the Navy, Washington, DC.
Sims, C. T., 1987, Superalloys: Genesis and Character, Superalloys-II, C. T. Sims, N. S. Stoloff, and W. C. Hagel, eds., Wiley, New York, p. 1.
VerSnyder,  F. L., and Guard,  R. W., 1960, “Directional Grain Structure for High Temperature Strength,” Trans. ASM, 52, pp. 485–492.
Gell, M., and Duhl, D. L., 1986, “The Development of Single Crystal Superalloy Turbine Blades,” Processing and Properties of Advanced High-Temperature Materials, S. M. Allen, R. M. Pelloux, and R. Widmer, eds., ASM, Metals Park, OH, p. 41.
Moroso, J., 1999, “Effect of Secondary Orientation on Fatigue Crack Growth in Single Crystal Turbine Blades,” M. S. thesis, Mechanical Engineering Department, University of Florida, Gainesville, FL.
Arakere, N. K., and Swanson, G., 2000, “Effect of Crystal Orientation on Fatigue Failure of Single Crystal Nickel Base Turbine Blade Superalloys,” Proc. ASME IGTI Conference, Munich, Germany.
Arakere, N. K., and Swanson, G., 2000, “Effect of Crystal Orientation on Analysis of Single Crystal, Nickel Base Turbine Blade Superalloys,” NASA Report No. NASA/TP-210074, Washington, DC.
Giannokopoulos,  A. E., Lindley,  T. C., and Suresh,  S., 1998, “Aspects of Equivalence Between Contact Mechanics and Fracture Mechanics: Theoretical Connections and a Life Prediction Methodology for Fretting Fatigue,” Acta Mater., 46, pp. 2955–2968.
Szolwinski,  M. P., and Farris,  T. N., 1996, “Mechanics of Fretting Fatigue Crack Formation,” Wear, 198, pp. 93–107.
Attia, M. H., and Waterhouse, R. B., 1992, Standardization of Fretting Fatigue Test Methods and Equipment, ASTM Publication No. 04-011590-30, STP 1159.
Hoeppner, D. W., 1990, “Mechanisms of Fretting Fatigue and their Impact on Test Methods Development,” Standardization of Fretting Fatigue Test Methods and Equipment, ASTM, Metals Park, OH, pp. 23–32.
Vingsbo,  O., and Soderberg,  D., 1988, “On Fretting Maps,” Wear, 126, pp. 131–147.
Ruiz,  C., Boddington,  P. H. B., and Chen,  K. C., 1984, “An Investigation of Fatigue and Fretting in a Dovetail Joint,” Exp. Mech., 24, pp. 208–217.
Stouffer, D. C., and Dame, L. T., 1996, Inelastic Deformation of Metals, Wiley, New York.
DeLuca, D. P., Pratt & Whitney, Government Engines and Space Propulsion, Mechanics of Materials, West Palm Beach, FL (personal communication).
Telesman,  J., and Ghosn,  L., 1989, “The Unusual Near Threshold FCG Behavior of a Single Crystal Superalloy and the Resolved Shear Stress as the Crack Driving Force,” Eng. Fract. Mech., 34, pp. 1183–1196.
Deluca, D. P., and Cowles, B. A., 1989, “Fatigue and Fracture of Single Crystal Nickel in High Pressure Hydrogen,” Hydrogen Effects on Material Behavior, N. R. Moody and A. W. Thomson, eds., TMS, Warrendale, PA.
John, R., DeLuca, D. P., Nicholas, T., and Porter, J., 1998, “Near-Threshold Crack Growth Behavior of a Single Crystal Ni-Base Superalloy Subjected to Mixed Mode Loading,” Mixed-Mode Crack Behavior, K. J. Miller and D. L. McDowell, eds., ASTM, Metals Park, OH.
Pratt and Whitney, 1996, “SSME Alternate Turbopump Development Program HPFTP Critical Design Review,” Technical Report No. P&W FR24581-1.
Sayyah, T., 1999, “Alternate Turbopump Development Single Crystal Failure Criterion for High Pressure Fuel Turbopump First Stage Blades,” Technical Report No.: 621-025-99-001, NASA Contract NAS 8-40836, NASA, Washington, DC.
Lekhnitskii, S. G., 1963, Theory Of Elasticity of an Anisotropic Elastic Body, Holden-Day Inc.
Kandil, F. A., Brown, M. W., and Miller, K. J., 1982, Biaxial Low Cycle Fatigue of 316 Stainless Steel at Elevated Temperatures, Metals Society, London, pp. 203–210.
Socie, D. F., Kurath, P., and Koch, J., 1985, “A Multiaxial Fatigue Damage Parameter,” presented at the Second International Symposium on Multiaxial Fatigue, Sheffield, U.K.
Fatemi,  A., and Socie,  D., 1988, “A Critical Plane Approach to Multiaxial Fatigue Damage Including Out-of-Phase Loading,” Fatigue Fract. Eng. Mater. Struct., 11, pp. 149–165.
Smith,  K. N., Watson,  P., and Topper,  T. M., 1970, “A Stress-Strain Function for the Fatigue of Metals,” J. Mater., 5, pp. 767–778.
Banantine, J. A., and Socie, D. F., 1985, “Observations of Cracking Behavior in Tension and Torsion Low Cycle Fatigue,” presented at ASTM Symposium on Low Cycle Fatigue-Directions for the Future, Philadelphia, ASTM, Metals Park, OH.

Figures

Grahic Jump Location
A subsurface fretting fatigue crack emanating from a carbide in a turbine blade attachment (PWA1422) and propagating along octahedral (111) shear planes 4
Grahic Jump Location
Subsurface fretting fatigue crack initiation in a single crystal Ni turbine blade (platform tip) 18
Grahic Jump Location
Strain range versus cycles to failure for LCF test data (PWA1493 at 1200°F)
Grahic Jump Location
Shear stress amplitude [Δτmax] versus cycles to failure
Grahic Jump Location
Secondary crystallographic orientation β versus crack depth for the SSME AHPFTP first stage turbine blade 823
Grahic Jump Location
First stage turbine blade FE model and casting coordinate system
Grahic Jump Location
Variation in primary crystallographic orientation is described by cases 0–32. The rotations Δ and Γ locate the primary axis relative to the casting axis. Table 4 gives values of Δ and Γ for the 33 cases.
Grahic Jump Location
Convention for defining crystal orientation in turbine blades 8
Grahic Jump Location
Material (x,y,z) and blade (x,y,z) coordinate systems
Grahic Jump Location
Maximum shear stress amplitude (Δτmax,ksi) contour plot at the blade tip critical point
Grahic Jump Location
Normalized HCF life (contour plot) at the blade tip critical point, as a function of primary and secondary orientation
Grahic Jump Location
Representative stress plot for the single crystal blade attachment region
Grahic Jump Location
HPFTP/AT first stage blade vonMises stress plot with local zoom in of the suction side upper contact region at the blade leading edge and the local coordinate system used for the contact results
Grahic Jump Location
Fretting/galling induced crack in the contact region (suction side trailing edge of blade). Several arrest marks are visible. Crystal orientation: Δ=−6.7 Deg,γ=11.3 Deg,β=4.2 Deg.
Grahic Jump Location
Fretting/galling induced cracking showing multiple origins and stage II cracks (pressure side trailing edge location). Crystal orientation: Δ=−2 Deg,γ=3 Deg,β=7 Deg.
Grahic Jump Location
Contour plot of max shear stress amplitude, Δτmax at the critical contact location, as a function of primary (case number) and secondary (θ or β) crystallographic orientation
Grahic Jump Location
Contour plot of the parameter σmax*(Δε/2) at the critical contact location, as a function of primary (case number) and secondary (θ or β) crystallographic orientation

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In