Precipitation Study in Inconel 625 Alloy by Positron Annihilation Spectroscopy

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J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (05): 434-436.

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Precipitation Study in Inconel 625 Alloy by Positron Annihilation Spectroscopy

M.Ahmad, W.Ahmad, M.A.Shaikh, Mahmud Ahmad, M.U.Rajput

Nuclear Physics Division, Pakistan Institute of Nuclear Science & Technology, P.O. Nilore, Islamabad, Pakistan

Received:1900-01-01 Revised:1900-01-01 Online:2003-09-28 Published:2009-10-10
Contact: M.Ahmad

Abstract

Abstract: Precipitation in Inconel 625 alloy has been studied by positron annihilation spectroscopy and electron microscopy. The observed dependence of annihilation characteristics on aging time is attributed to the change of the positron state due to the increase and decrease of the density and size of the γ″ precipitates. Hardness measurements and lifetime measurements are in good agreementr

Key words: Positron lifetime, Precipitation, Inconel 625 alloy, Fast-fast coincidence system, Hardness

M.Ahmad, W.Ahmad, M.A.Shaikh, Mahmud Ahmad, M.U.Rajput. Precipitation Study in Inconel 625 Alloy by Positron Annihilation Spectroscopy[J]. J Mater Sci Technol, 2003, 19(05): 434-436.

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Precipitation Study in Inconel 625 Alloy by Positron Annihilation Spectroscopy

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