Abstract
Microradiographic techniques employing synchrotron radiation were used to investigate creep damage in several ferrous alloys. Creep damage, in the form of voids and microcracks, was imaged through differential absorption of the transmitted X-ray beam in the damaged and undamaged regions. The images were recorded on high resolution plates which were placed directly behind the samples. Slow strain rate tensile tests were performed at temperatures between 500 °C and 700 °C. The tests were interrupted after various test times, and 1.0 to 2.0 mm thick slices were cut from each sample. The creep damage in these sections was then examined using microradiography and the amount and distribution of damage was observed.
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References
G.J. Burch:Nature, Lond., 1896, vol. 54, p. 111.
F. Ranwez:C. R. Acad. Sci., Paris, 1896, vol. 122, p. 841.
C. T. Heycock and F. H. Neville:J. Chem. Soc., 1898, vol. 73, pp. 714–23.
S. Purushothaman, N. F. Panayotou, and J. K. Tien:Metall. Trans. A, 1980, vol. 11A, pp. 621–25.
R. Glocker and W. Frohnmayer:Ann. Phys. Lpz., 1925, vol. 76, pp. 369–95.
D. K. Bowen: inCharacterization of Crystal Growth Defects by X-ray Methods, B. K. Tanner and D. K. Bowen, eds., Plenum, New York, NY, 1980, pp. 506–11.
E. P. George, P. L. Li and D. P. Pope:Acta Metall., 1987, vol. 35, pp. 2471–86.
S. -H. Chen, T. Takasugi, and D. P. Pope:Metall. Trans. A, 1983, vol. 14A, pp. 571–80.
L. M. Kachanov: Izv. Acad. Nauk SSSR Otd. Techn. Nauk, 1958, no. 8, pp. 26-31.
D. R. Hayhurst, P. R. Dimmer, and C. J. Morrison:Phil. Trans. R. Soc. Lond. A, 1984, vol. A311, pp. 103–29.
V. Tvergaard:Int. J. Fracture, 1986, vol. 31, pp. 183–209.
J. W. Hutchinson:Acta Metall., 1983, vol. 31, pp. 1079–88.
J. L. Bassani and D. E. Hawk:Proc. of the International Seminar on High Temperature Fracture Mechanisms and Mechanics, Dourdan, France, 1987, in press.
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This paper is based on a presentation made in the symposium “Crack Propagation under Creep and Creep-Fatigue” presented at the TMS/AIME fall meeting in Orlando, FL, in October 1986, under the auspices of the ASM Flow and Fracture Committee.
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Benci, J.E., Pope, D.P. Measuring creep damage using microradiography. Metall Trans A 19, 837–845 (1988). https://doi.org/10.1007/BF02628366
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DOI: https://doi.org/10.1007/BF02628366