Abstract
Observations have been made on the acoustic emission (AE) response related to the deformation-damage mechanisms during tensile tests of a common engine material, Incoloy 901 superalloy. Results show that dislocation motion, twinning and inclusion fracture cooperated to generate acoustic emission during tensile deformation of Incoloy 901. Based on AE recorded results and microstructural examination, a dislocation-saturation model was developed to describe AE activity during elastic and plastic deformation, and to distinguish between the AE response in the yield region and in the work-hardening region. Furthermore, the effects of strain rate and loading methods on AE outputs were examined. The dependence of acoustic emission on dislocation motion and saturation, deformation twinning, and decohesion and fracture of inclusions and secondary particles are discussed.
Similar content being viewed by others
References
C. R. HEIPLE and S. H. CARPENTER, Acoustic emission from dislocation motion, in Acoustic Emission, edited by J. R. MATTHEWS (Gordon and Breach Publishers, New York, 1983) p. 33.
H. N. G. WADLEY, C. B. SCRUBY and J. H. SPEAK, Inter. Metals Rev. 2, Review 249 (1980) p. 41.
W. SCHAARWÄCHTER and H. EBENER, Acta Metall. 38 (1983) 195.
C. R. HEIPLE and S. M. CARPENTER, J. Acoustic Emission 6 (1987) 177.
P. P. GILIS and M. A. HAMSTAD, Mater. Sci. Eng. 14 (1974) 103.
C. R. HEIPLE and S. S. CRISTIANSEN, J. Acoustic Emission 5 (1986) 85.
C. R. HEIPLE and S. M. CARPENTER, J. Acoustic Emission 6 (1987) 215.
S. L. van DOREN, R. B. POND and R.E. GREEN, Jr., J. Appl. Phys. 47 (1976) 4343.
M. N. BASSIM and M. VEILLETTE, Mater. Sci. Eng. 50 (1981) 285.
L. R. F. ROSE, J. Nondestructive Evaluation 1 (1980) 149.
H. B. TEOH and K. ONO, J. Acoustic Emission 6 (1987) 1.
S. L. MCBRIDE, J. W. MACLACHLAN and B. P. PARADIS. J. Nondestructive Evaluation 2 (1981) 35.
S. H. CARPENTER and F. P. HIGGINS, Metall. Trans. A. 8A (1989) 1629.
D. FANG, “Micro- and Macro-Evaluation of Fatigue Damage Accumulation”, DSc. dissertation, Technion — Israel Institute of Technology, Haifa, Israel (1993).
A. FANG and A. BERKOVITS, ASME J. Mater. Tech., in press.
D. FANG and A. BERKOVITS, J. Acoustic Emission 11(2), (1993) 85.
D. FANG and A. BERKOVITS, “Fatigue damage mechanisms on the basis of acoustic emission measurements”, in Symposium on Novel Experimental Techniques in Fracture Mechanics, ASME Winter Annual Meeting, New Orleans, USA, November (1993).
J. P. HIRTH and J. LOTHE, “Theory of dislocation” (McGraw-Hill Book Co., New York, 1968).
R. W. K. HONEYCOMBE, “The plastic deformation of metals” (St. Martin's Press, New York, 1986).
ASTM Standards, Annual Book of ASTM Standards, ASTM, Philadelphia, Vol.03.01 1992 p. 609.
M. A. HAMSTAD and A. K. MUKHERJEE, “The dependence of acoustic emission on strain rate in 7075-T6 aluminum”, Experimental Mechanics, January 1975 p. 33.
M. A. FRIESEL and S. H. CARPENTER, Mater. Sci. Eng. 68 (1984) 107.
H. HATANO, J. Appl. Phys. 47 (1976) 3873.
R. B. NICHOLSON, “Strengthening Methods in Crystals” (Applied Science Publishers, London, 1971).
Author information
Authors and Affiliations
Additional information
Formerly a postdoctoral student, Faculty of Mechanical Engineering, Technion, Israel.
Rights and permissions
About this article
Cite this article
Fang, D., Berkovits, A. Acoustic emission during the tensile deformation of Incoloy 901 superalloy. Journal of Materials Science 30, 3552–3560 (1995). https://doi.org/10.1007/BF00349910
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00349910