Study by TEM, EDS, EELS and Electron Diffraction of Precipitation Reactions in a Cr-Mn Austenitic Steel with and without He-Implantation

A STUDY OF PRECIPITATION REACTIONS IN THE CR-MN AUSTENITIC STEEL NITRONIC 32 WAS PERFORMED BY MEANS OF ELECTRON MICROSCOPY, ELECTRON DIFFRACTION, X-RAY MICROANALYSIS AND ELECTRON ENERGY LOSS SPECTROMETRY. THE MATERIAL WAS EXAMINED: A) AFTER SOLUTION ANNEALING AND AGEING AT 773, 1023 AND 1073 K; B) AFTER SOLUTION ANNEALING FOLLOWED BY AMBIENT TEMPERATURE HE-IMPLANTATION AND AGEING AT 773 AND 1923 K AND, C) IN THE SOLUTION ANNEALED STATE FOR COMPARISON. THE FORMATION OF THE PHASES M23C6 AND CR2N WAS OBSERVED. THEIR PRECIPITATION MODES AND SEQUENCE ARE DESCRIBED ABD DISCUSSED.

RUEDL Erich; 

1995-03-15

JRC5250