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Analysis of Residual Stress States in Coarse Grained and Single Crystal Nickel-Base Superalloys

Published online by Cambridge University Press:  06 March 2019

W. Reimers
W. Reimers*
Affiliation:
Hahn-Meitner-Institut, Bereich Strukturforschung, Glienicker Str. 100, D -14 109 Berlin, Germany
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Abstract

The single crystal measuring and evaluation technique allows the analysis of stress states in large grained and single crystalline materials. The technique is based on the analysis of the orientation of crystallites under study. Using a fouf-circle-diffractometer, the knowledge of the orientation matrix allows the calculation of the diffractometer setting for every given reflection (hkl). After experimental determination of the precise diffraction angles 20 for at least six reflections of an individual crystallite, its strain tensor components can be obtained by applying least-squares methods. The stress tensor referred to the crystal axes system is calculated using the single crystal elastic constants.

The practical use of this measuring and evaluation technique is demonstrated on coarse grained and single crystal nickel-base superalloys and monocrystalline materials.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 39: Forty-Fourth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1995 , 1995 , pp. 211 - 223
Copyright
Copyright © International Centre for Diffraction Data 1995

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References

/1/ Dölle, H., Hauk, V., Gitterdehnungen in gröbkornigen kubischen Werkstoffen Z. Metallkd. 71 (1980), 708–713.Google Scholar
/2/ Crostack, H. A., Reimers, W., X-ray diffraction analysis of residual stresses in coarse grained materials, in: Residual Stresses in Science and Technology, Macherauch, E., Hauk, V. (eds. ), DGM-Informationsges. Verlag, Oberursel (1987), 289-294.Google Scholar
/3/ Hauk, V., Macherauch, E., Die zweckmaäige Durchführung röntgenographischer Spannungsermittlungen (RSE), in: Eigenspannungen und Lastspannungen, Hauk, V., Macherauch, E. (Hrsg. ), HTM, Carl-Hansel Verlag (19S2), 1-19.Google Scholar
/4/ Francois, M., Lebrun, J. L., X-ray stress determination on materials with large size crystallites - Theoretical approach, in: Residual Stresses, Hauk, V., Hougardy, H. P., Macherauch, E., Tietz, H. D. (eds. ), DGM-Informationsges. Verlag, Oberursel (1993), 295–302.Google Scholar
/5/ Reimers, W., Investigations of large grained samples - principles, in: Measurement of Residual and Applied Stress Using Neutron Diffraction, Hutchings, M. T., Krawitz, A. D. (eds), Kluwer Academic Publishers, (1992), 159–170.Google Scholar
/6/ Macherauch, E., Wohlfarth, H., Wolfstieg, U., Zur zweckmäBigen Definition von Eigenspannungen, HTM 28 (1973), 201–211.Google Scholar
/7/ Reimers, W., Crostack, H. A., Wrobel, M., Eckold, G., Investigations of large grained samples - Examples, in: Hutchings, M. T., Krawitz, A. D. (eds. ), Measurement of residual and applied stress using neutron diffraction, (1992), 263-276.Google Scholar
/8/ Wrobel, M., Untersuchungen zur Analyse von Dehnungen und Spannungen in einzelnen Kristalliten der Nickelbasis-Superlegierung Inconel 939, Dr. -Ing. Diss., Universitat Dortmund, Verlag Shaker, Aachen 1995Google Scholar
/9/ Dupke, R., Reimers, W., X-ray Diffraction Investigations on Individual Grains in the Polycryastalline Ni-base Superalloy In 939 During Cyclic loading, II: Residual Stresses, accepted to Z. f. Metallkde.Google Scholar
/10/ Dupke, R., Reimers, W., X-ray Diffraction Investigations on Individual Grains in the Poly crystalline Ni-base Superalloy In 939 During Cyclic loading, I: X-ray Rocking Curve Broadening Z. f. Metallkde. 86 (1995), 5, 371–377.Google Scholar
/11/ Deiargy, K. M., Smith, G. D. W., Phase Composition and Phase Stability of Alloy IN 939, in: Proc. Conf. “High Temperature Alloys for Gas Turbines”, Liittich/Belgien, (1985), 705–719.Google Scholar
/12/ Nathal, M. V., MacKay, R. A., Garlick, R. G., Temperature Dependence of γ/γ’ lattice Mismatch in Nickel-base Superalloys, Mat. Science Eng. 75 (1985), 195-205.Google Scholar
/13/ Grose, D. A., Ansell, G. S., The Influence of Coherency Strain on the Elevated Temperature Tensile Behaviour of Ni. - 15Cr-Al-Ti-Mo alloys, Met. Trans., 12A (1981), 1631-1645.Google Scholar
/14/ MacKay, R. A., Ebert, L. J., Development of γ/γ’ lamellar structures in a Nickel-base superalloy during elevated temperature mechanical testing, Met. Trans. 16A (1985), 1969-1982.Google Scholar
/15/ Pollock, T. M., Argon, A. S., Creep resistance of CMSX-3 nickel-base superalloy single crystals, Acta Met. 40 (1992), 1–30.Google Scholar
/16/ Carry, C., Stnidel, J. L., Apparent and effective creep parameters in single crystals of a nickel-base superalloy - II. Secondary creep, Acta Met. 26 (1977), 859-870.Google Scholar
/17/ Gnaupel-Herold, T., Reimers, W., Stress states in the creep deformed single crystal nickelbase superalloy SC 16, Scripta Met. 33 (1995), 615-621.Google Scholar
/18/ Miiller, A., Reimers, W., Small Lattice Mismatches in Highly Imperfect Single Crystals: A Probe Into Phase Specific Strains and Stresses, Part I: Determination by Means of Diffraction Mappings, submitted to physica status solidi(a).Google Scholar
/19/ Portella, P. D., Kinder, J., Bundesanstalt für Materialforschimg und -priifung Berlin, unpublished resultsGoogle Scholar
/20/ Li, J., Wahi, R. P., Investigations of γ/γ’ lattice mismatch in the poly crystalline nickelbase superalloy IN 73SLC: Influence of heat treatment and creep deformation, msubmitted to Acta met.Google Scholar
/21/ Keller, R. P., Maier, H. J., Renner, H., Mughrabi, H., Local lattice parameter measurements in a creep-deformed nickel-base superalloy by convergent beam electron diffraction, Scripta met, 27(1992), 1167–1172.Google Scholar
/22/ Glatzel, U., Miiller, A., Calculated and measured internal stresses of creep deformed single crystal nickel-based superalloys, in: Proc. 15. Riso Int. Symp. (1994), 319–324.Google Scholar
/23/ Glatzel, U., Neutron scattering experiments with a nickelbase superalloy part II: Analysis of intensity profiles, Scripta met. 31 (1994), 291–294.Google Scholar
/24/ Kuhn, H. A., Biermann, H., Ungar, T., Mughrabi, H., An X-ray study of creepdeformation induced changes of the lattice mismatch in the γ'-hardened monocrystalline nickel-base superalloy SRR 99, Acta met. 39 (1991), 2783-2794.Google Scholar
/25/ Keller, R. P., Maier, H. I., Mughrabi, H., Characterization of interfacial dislocation networks in a creep-de formed nickel-base superalloy, Scripta met. 28 (1993), 23-28.Google Scholar
/26/ Mughrabi, H., Biermann, H., Ungar, T., X-ray analysis of creep-induced local lattice parameter changes in a monocrystalline nickel-base superalloy, in: Proc. 7. Int. Symp. on Superalloys, Sevensprings (USA), (1992), 599-608.Google Scholar