Positron Lifetime Measurements of Subsurface Region in Aluminium Alloy and Aluminium Alloy Composite after Dry Sliding

• Authors: E. Dryzek
• Languages of publication: EN

Abstracts

EN

This paper presents positron lifetime studies of the subsurface region of AK12 aluminium alloy and Al_2O_3-particle-reinforced AK12 aluminium alloy composite after sliding against steel in the pin-on-disc machine. The defect depth profile detected in the AK12 alloy extended up to 300μm but for the composite AK12 the range of this profile was significantly shortened to less than 90μm. The positron lifetime dependence on depth evidences a steep gradient of defect concentration near the surface. The subsurface zones have been also examined using scanning electron microscopy.

Keywords

EN

78.70.Bj

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 5
• Pages: 753-760

Dates

published

2005-05

received

2004-09-20

Contributors

author

E. Dryzek

• Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland

References

• 1. J.F. Archard, J. Appl. Phys., 24, 981, 1953
• 2. N.P. Suh, Wear, 25, 111, 1973
• 3. J. Dryzek, E. Dryzek, T. Stegemann, B. Cleff, Tribology Lett., 3, 269, 1997
• 4. J. Dryzek, E. Dryzek, Borner, R. Krause-Rehberg, Tribology Lett., 11, 29, 2001
• 5. J. Dryzek, E. Dryzek, Tribology Lett., 15, 309, 2003
• 6. J. Dryzek, E. Dryzek, Mater. Sci. Forum, 445-446, 72, 2004
• 7. J. Dryzek, E. Dryzek, Tribology Lett., 17, 147, 2004
• 8. E. Dryzek, J. Mater. Sci., 38, 3755, 2003
• 9. J. Dryzek, E. Dryzek, submitted to Tribology Int
• 10. E. Dryzek, J. Dryzek, submitted to Tribology Int
• 11. J. Kansy, Nucl. Instrum. Methods A, 374, 235, 1996
• 12. G.I. Gleason, I.D. Taylor, D.I. Tabern, Nucleonics, 8, 12, 1951
• 13. J. Dryzek, Nukleonika, 42, 95, 1997
• 14. A. Somi Reddy, B.N. Pramila Bai, K.S.S. Murthy, S.K. Biswas, Wear, 171, 115, 1994
• 15. J. Zhang, A.T. Alpas, Mater. Sci. Eng. A, 161, 273, 1993
• 16. M. Narayan, M.K. Surappa, B.N. Pramila Bai, Wear, 181-183, 563, 1995
• 17. A. Somoza, A. Dupasquier, I.J. Polmear, P. Folegati, R. Ferragut, Phys. Rev. B, 61, 14454, 2000
• 18. K. Petersen, in: Positron Solid-State Physics, Ed. W. Brandt, North Holland Publ. Company, Amsterdam 1983, p. 298
• 19. M. Forster, W. Claudy, H. Hermes, M. Koch, K. Maier, J. Major, H. Stoll, H.-E. Schaefer, Mater. Sci. Forum, 105-110, 1005, 1992
• 20. M. Noguchi, T. Mitsuhashi, T. Chiba, T. Tanaka, N. Tsuda, J. Phys. Soc. Jpn., 32, 1242, 1972

Identifiers

DOI

10.12693/APhysPolA.107.753