Stability of precipitates under electropulsing in 316L stainless steel

Lu, W. J.; Zhang, X. F. and Qin, R. S. (2015). Stability of precipitates under electropulsing in 316L stainless steel. Materials Science and Technology, 31(13a) pp. 1530–1535.

DOI: https://doi.org/10.1179/1743284714Y.0000000743

Abstract

Precipitation takes place when the austenite stainless steel is heated to a high temperature. This is found significantly different when the electropulsing is implemented during the heat treatment. Considerable less number density and much smaller particle size of precipitates are formed in the sample treated with electropulsing. Electropulsing helps to dissolve precipitates. The effect is not due to Ohm heat. Instead, it is attributed to the electric current induced change of thermodynamic sequences of the phases and the electric current accelerated mass diffusion.

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