Intergranular corrosion damage evaluation through laser scattering technique
Source abstract
Abstract
AISI type 316 austenitic stainless steel in sensitized condition was subjected to ASTM A262 practice A test (electrolytic etching in 10% ammonium persulphate at 1 A/cm 2 ) for various durations from 10 s to 90 s. The different degrees of intergranular corrosion attack produced on these tested specimens were evaluated by laser scattering technique using a 1 mW He-Ne laser. The scattering intensity pattern of the laser beam incident on the specimen was acquired using a CCD camera and transferred to a computer for further analysis. The specular intensity of the scattering pattern and its full width at half maximum (FWHM) was calculated. The results indicated that the specular intensity decreased and the FWHM increased as the degree of IGC attack increased. A good correlation was found between the extent of IGC with the laser scattering parameters.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Roughness and Optical Measurements · Non-Destructive Testing Techniques · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Sedriks · 1979
2. R. Halmshaw, A review of NDT methods and corrosion detection, in: Proceedings of Workshop on Nondestructive Evaluation in Corrosion (NECOR-92), IIM & ISNT Kalpakkam Chapters, Kalpakkam, India, 1992, pp. 1.1–1.10.
3. Baldev Raj, Recent trends in corrosion monitoring with emphasis on advanced NDE techniques, in: Proceedings of Workshop on Nondestructive Evaluation in Corrosion (NECOR-92), IIM & ISNT Kalpakkam Chapters, Kalpakkam, India, 1992, pp. 1.1–1.31.
4. ASNT Nondestructive Handbook, second ed., vol. 3, No. 12, 1985.
5. 1991
6. Singh · Mater. Eval. · 1983 · 41 · 568
7. Krolicki · Mater. Eval. · 1985 · 43 · 1008
8. M.J. Povich, R.E. Smith, An overview of intergranular stress corrosion cracking in light water reactors, Paper no. 235, Corrosion 79, National Association of Corrosion Engineers, Atlanta Hilton, Georgia, USA, 1979, pp. 235/1–235/14.
9. Cihal · 1984
10. S.M. Brummer, L.A. Charlot, D.G. Atteridge, Composition effects on the sensitization of austenitic stainless steels, Report NLTREG/CR-3918, US Nuclear Regulatory Commission, Washington, DC, 1984, Pacific Northwest Laboratory, 1984.
11. Briant · Corrosion · 1982 · 38 · 46810.5006/1.3577362 ↗
12. U. Kamachi Mudali, Studies on pitting, Intergranular corrosion and passive film in nitrogen-bearing austenitic stainless steels, Ph.D. Thesis, University of Madras, Madras, India, 1993.
13. Rayleigh Lord, The Theory of Sound, first ed., Macmillan, New York, 1877. Reprinted in 1945, Dover, New York.
14. Beckmann · 1963
15. Church · Wear · 1979 · 57 · 9310.1016/0043-1648(79)90143-1 ↗
16. Thwaite · Ann. CIRP · 1980 · 29 · 41910.1016/S0007-8506(07)61363-8 ↗
17. Rakels · Meas. Control · 1991 · 24 · 5610.1177/002029409102400204 ↗
18. Cao · Appl. Opt. · 1991 · 30 · 322110.1364/AO.30.003221 ↗
19. Whitley · Opt. Laser. Technol. · 1987 · 19 · 18910.1016/0030-3992(87)90065-X ↗
20. Chmiel · Corrosion · 1990 · 46 · 610.5006/1.3585140 ↗
21. Escalona · J. Mater. Sci. · 1993 · 28 · 99910.1007/BF00400886 ↗
22. Jin · Mater. Eval. · 1997 · 55 · 813
23. Ganesan · 1995
24. Study of corrosion pits using laser scattering
25. U. Kamachi Mudali, A.V. Ananthalakshmi, C. Babu Rao, Baldev Raj, Detection of pitting and intergranular corrosion through laser scattering technique, in: Proceedings of the National Seminar on NDE 98, ISNT Trivandrum Chapter, Trivandrum, 1998, pp. 243–248.
26. Standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels, A262-86, in 1990 Annual Book of ASTM Standards, vol. 03.02, ASTM, Philadelphia, USA, 1990, p. 1.