| Numéro |
J. Phys. Colloques
Volume 48, Numéro C6, Novembre 1987
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
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| Page(s) | C6-399 - C6-404 | |
| DOI | https://doi.org/10.1051/jphyscol:1987665 | |
34th International Field Emission Symposium / 34ème Symposium International d'Emission de Champ
J. Phys. Colloques 48 (1987) C6-399-C6-404
DOI: 10.1051/jphyscol:1987665
R & D Labs.-1, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki - 211, Japan
J. Phys. Colloques 48 (1987) C6-399-C6-404
DOI: 10.1051/jphyscol:1987665
STUDY OF ULTRA-FINE PRECIPITATES IN LOW ALLOY STEELS
R. Uemori et M. TaninoR & D Labs.-1, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki - 211, Japan
Abstract
Precipitates formed before and at the peak stage of secondary hardening in tempered low alloy steels were examined by atom probe - field ion microscopy. The present AP analysis confirmed the existence of Mo2C, NbC, and V4C3 even before and at the peak stage of secondary hardening. In addition to alloy carbides, existence of Mo clusters and Nb clusters were found. Formation of such clusters may play an important role in secondary hardening of Mo and Nb steels.